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5.3 merge

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This commit is contained in:
Sergei Golubchik
2012-01-13 15:50:02 +01:00
parent 8c2bcdf85f 6ca4ca7d37
commit 4f435bddfd
750 changed files with 17402 additions and 7153 deletions
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6
mysql-test/include/common-tests.inc
View File

@ -1536,6 +1536,10 @@ select t2.fld1,t22.fld1 from t2,t2 t22 where t2.fld1 >= 250501 and t2.fld1 <= 25
#
# Test of left join.
#
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='outer_join_with_cache=off';
insert into t2 (fld1, companynr) values (999999,99);
select t2.companynr,companyname from t2 left join t4 using (companynr) where t4.companynr is null;
@ -1568,6 +1572,8 @@ explain select companynr,companyname from t4 left join t2 using (companynr) wher
explain select companynr,companyname from t4 left join t2 using (companynr) where companynr > 0 or companynr < 0 or companynr > 0;
explain select companynr,companyname from t4 left join t2 using (companynr) where ifnull(companynr,1)>0;
SET optimizer_switch=@save_optimizer_switch;
#
# Joins with forms.
#

2
mysql-test/include/default_mysqld.cnf
View File

@ -1,4 +1,4 @@
# Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
# Copyright (c) 2007, 2010, Oracle and/or its affiliates
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by

1
mysql-test/include/gis_keys.inc
View File

@ -33,6 +33,7 @@ EXPLAIN
SELECT COUNT(*) FROM t1 WHERE p=POINTFROMTEXT('POINT(1 2)');
SELECT COUNT(*) FROM t1 WHERE p=POINTFROMTEXT('POINT(1 2)');
--replace_column 9 #
EXPLAIN
SELECT COUNT(*) FROM t2 WHERE p=POINTFROMTEXT('POINT(1 2)');
SELECT COUNT(*) FROM t2 WHERE p=POINTFROMTEXT('POINT(1 2)');

9
mysql-test/include/have_plugin_auth.inc
View File

@ -1,5 +1,4 @@
disable_query_log;
--require r/true.require
select (PLUGIN_LIBRARY LIKE 'auth_test_plugin%') as `TRUE` FROM INFORMATION_SCHEMA.PLUGINS
WHERE PLUGIN_NAME='test_plugin_server';
enable_query_log;
if (`select count(*) = 0 from information_schema.plugins where plugin_name = 'test_plugin_server' and plugin_status='active'`)
{
--skip Needs auth_test_plugin
}

108
mysql-test/include/icp_tests.inc
View File

@ -437,6 +437,7 @@ LIMIT 1;
DROP TABLE t1;
--echo #
--echo #
--echo # Bug#59259 "Incorrect rows returned for a correlated subquery
--echo # when ICP is on"
@ -744,3 +745,110 @@ SELECT a FROM t1 WHERE c IS NULL AND d IS NOT NULL GROUP BY 1;
DROP TABLE t1;
--echo #
--echo # Bug#904832: an attempt to perform an index condition pushdown
--echo # of a condition containing a subquery
--echo #
CREATE TABLE t1 (
a INT PRIMARY KEY NOT NULL AUTO_INCREMENT,
b INT, c INT, d DATE NOT NULL, e VARCHAR(1),
KEY (c), KEY (d), KEY k2(b), KEY k3(b), KEY k4(b)
);
INSERT INTO t1 (b,c,d,e) VALUES
(6,5,'2006-05-25','y'),(1,5,'2008-01-23','t'),
(6,5,'2007-06-18','d'),(4,5,'1900-01-01','r'),
(8,5,'1900-01-01','m'),(4,5,'2006-03-09','b'),
(4,5,'2001-06-05','x'),(1,5,'2008-01-23','t'),
(6,5,'2007-06-18','d'),(4,5,'1900-01-01','r'),
(8,5,'1900-01-01','m'),(4,5,'2006-03-09','b'),
(4,5,'2001-06-05','x'),(1,5,'2008-01-23','t'),
(4,5,'1900-01-01','r'),(8,5,'1900-01-01','m'),
(4,5,'2006-03-09','b'),(4,5,'2001-06-05','x'),
(1,5,'2008-01-23','t'),(6,5,'2007-06-18','d'),
(4,5,'1900-01-01','r'),(8,5,'1900-01-01','m'),
(4,5,'2006-03-09','b'),(4,5,'2001-06-05','f'),
(4,5,'2001-06-05','x'),(8,5,'1900-01-01','m'),
(4,5,'2006-03-09','b'),(4,5,'2001-06-05','x'),
(1,5,'2008-01-23','t'),(6,5,'2007-06-18','d'),
(4,5,'1900-01-01','r'),(8,5,'1900-01-01','m'),
(4,5,'2006-03-09','b'),(6,5,'2007-06-18','d'),
(6,5,'2007-06-18','d'),(4,5,'1900-01-01','r'),
(8,5,'1900-01-01','m'),(4,5,'2006-03-09','b'),
(6,5,'2007-06-18','d'),(4,5,'1900-01-01','r'),
(8,5,'1900-01-01','m'),(4,5,'2006-03-09','b'),
(4,5,'2006-03-09','b'),(4,5,'2001-06-05','x'),
(1,5,'2008-01-23','t'),(6,5,'2007-06-18','d'),
(4,5,'1900-01-01','r'),(8,5,'1900-01-01','m'),
(4,5,'2006-03-09','b'),(4,5,'2001-06-05','x'),
(4,5,'2001-06-05','x'),(1,5,'2008-01-23','t'),
(6,5,'2007-06-18','d'),(4,5,'1900-01-01','r'),
(8,5,'1900-01-01','m'),(4,5,'2006-03-09','b'),
(4,5,'2001-06-05','x'),(1,5,'2008-01-23','t'),
(6,5,'2007-06-18','d'),(4,1,'1900-01-01','r'),
(8,8,'1900-01-01','m'),(4,1,'2006-03-09','b'),
(4,1,'2001-06-05','x'),(7,1,'2006-05-28','g');
CREATE TABLE t2 (
f INT PRIMARY KEY NOT NULL AUTO_INCREMENT,
g INT,
h VARCHAR(1),
KEY (g)
);
INSERT INTO t2 (g,h) VALUES
(3,'e'),(1,'u'),(4,'v'),(9,'u'),(6,'i'),(1,'x'),
(5,'l'),(8,'y'),(0,'p'),(0,'f'),(0,'p'),(7,'d'),
(7,'f'),(5,'j'),(3,'e'),(1,'u'),(4,'v'),(9,'u'),
(6,'i'),(1,'x'),(5,'l'),(8,'y'),(0,'p'),(0,'f'),
(0,'p'),(0,'f'),(0,'p'),(7,'d'),(7,'f'),(5,'j'),
(3,'e'),(1,'u'),(4,'v'),(9,'u'),(6,'i'),(1,'x'),
(7,'d'),(7,'f'),(5,'j'),(3,'e'),(1,'u'),(4,'v'),
(9,'u'),(6,'i'),(1,'x'),(5,'l'),(8,'y'),(0,'p'),
(0,'f'),(0,'p'),(7,'d'),(7,'f'),(5,'j'),(3,'e'),
(1,'u'),(4,'v'),(9,'u'),(6,'i'),(1,'x'),(5,'l'),
(6,'q'),(2,'n'),(4,'r'),(4,'b'),(8,'y'),(0,'p'),
(0,'f'),(0,'p'),(7,'d'),(7,'f'),(5,'j'),(3,'e'),
(1,'u'),(4,'v'),(9,'u'),(6,'i'),(1,'x'),(5,'l'),
(8,'y'),(0,'p'),(0,'f'),(0,'p'),(7,'d'),(7,'f'),
(5,'j'),(3,'e'),(1,'u'),(4,'v'),(9,'u'),(6,'i'),
(1,'x'),(5,'l'),(8,'y'),(0,'p'),(0,'f'),(0,'p'),
(0,'f'),(0,'p'),(7,'d'),(7,'f'),(5,'j'),(3,'e'),
(1,'u'),(4,'v'),(9,'u'),(6,'i'),(1,'x'),(7,'d'),
(7,'f'),(5,'j'),(3,'e'),(1,'u'),(0,'f'),(0,'p'),
(7,'d'),(7,'f'),(5,'j'),(3,'e'),(1,'u'),(4,'v'),
(9,'u'),(6,'i'),(1,'x'),(5,'l'),(8,'y'),(0,'p'),
(0,'f'),(0,'p'),(0,'f'),(0,'p'),(7,'d'),(7,'f'),
(5,'j'),(3,'e'),(1,'u'),(4,'v'),(9,'u'),(6,'i'),
(1,'x'),(7,'d'),(7,'f'),(5,'j'),(3,'e'),(1,'u'),
(4,'v'),(9,'u'),(6,'i'),(1,'x'),(5,'l'),(8,'y'),
(0,'p'),(0,'f'),(0,'p'),(7,'d'),(7,'f'),(5,'j'),
(3,'e'),(1,'u'),(4,'v'),(9,'u'),(6,'i'),(1,'x'),
(5,'l'),(6,'q'),(2,'n'),(4,'r'),(4,'b'),(8,'y'),
(0,'p'),(0,'f'),(0,'p'),(7,'d'),(7,'f'),(5,'j'),
(3,'e'),(1,'u'),(4,'v'),(9,'u'),(6,'i'),(1,'x'),
(7,'f'),(5,'j'),(3,'e'),(1,'u'),(4,'v'),(9,'u');
SET @save_optimize_switch=@@optimizer_switch;
SET optimizer_switch='materialization=on';
EXPLAIN
SELECT COUNT(*) FROM t1 AS t, t2
WHERE c = g
AND (EXISTS (SELECT * FROM t1, t2 WHERE a = f AND h <= t.e AND a > t.b)
OR a = 0 AND h < 'z' );
SELECT COUNT(*) FROM t1 AS t, t2
WHERE c = g
AND (EXISTS (SELECT * FROM t1, t2 WHERE a = f AND h <= t.e AND a > t.b)
OR a = 0 AND h < 'z' );
SELECT COUNT(*) FROM t1 AS t, t2
WHERE c = g
AND (EXISTS (SELECT * FROM t1, t2 WHERE a = f AND h <= t.e AND a > t.b)
OR a = 0 AND h < 'z' );
SET optimizer_switch=@save_optimizer_switch;
DROP TABLE t1,t2;

3
mysql-test/include/index_merge1.inc
View File

@ -264,7 +264,10 @@ explain select * from t1 where key1=3 or key2=4
union select * from t1 where key1<4 or key3=5;
# index merge in subselect
set @tmp_optimizer_switch=@@optimizer_switch;
set optimizer_switch='derived_merge=off,derived_with_keys=off';
explain select * from (select * from t1 where key1 = 3 or key2 =3) as Z where key8 >5;
set optimizer_switch=@tmp_optimizer_switch;
# 12. check for long index_merges.
create table t3 like t0;

4
mysql-test/include/mix1.inc
View File

@ -1188,9 +1188,9 @@ DROP TABLE t1;
create table t1 (a bit(1) not null,b int) engine=myisam;
create table t2 (c int) engine=innodb;
set @save_optimizer_switch=@@optimizer_switch;
set @@optimizer_switch='partial_match_rowid_merge=off,partial_match_table_scan=off';
set @@optimizer_switch='in_to_exists=on,materialization=off';
explain
select b from t1 where a not in (select b from t1,t2 group by a) group by a;
select b from t1 where a not in (select max(b) from t1,t2 group by a) group by a;
set optimizer_switch=@save_optimizer_switch;
DROP TABLE t1,t2;

5
mysql-test/include/mtr_check.sql
View File

@ -1,4 +1,4 @@
-- Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
-- Copyright (c) 2008, 2010, Oracle and/or its affiliates
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
@ -29,7 +29,8 @@ BEGIN
SELECT * FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
WHERE variable_name NOT IN ('timestamp', 'innodb_file_format_max')
AND variable_name not like "Last_IO_Err*"
ORDER BY VARIABLE_NAME;
AND variable_name != 'INNODB_IBUF_MAX_SIZE'
ORDER BY variable_name;
-- Dump all databases, there should be none
-- except those that was created during bootstrap

2
mysql-test/include/mtr_warnings.sql
View File

@ -1,4 +1,4 @@
-- Copyright (c) 2008, 2011, Oracle and/or its affiliates. All rights reserved.
-- Copyright (c) 2008, 2011, Oracle and/or its affiliates
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by

2
mysql-test/lib/My/Config.pm
View File

@ -1,6 +1,6 @@
# -*- cperl -*-
# Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
# Copyright (c) 2007, 2010, Oracle and/or its affiliates
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by

2
mysql-test/lib/My/ConfigFactory.pm
View File

@ -1,5 +1,5 @@
# -*- cperl -*-
# Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
# Copyright (c) 2007, 2011, Oracle and/or its affiliates
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU Library General Public

2
mysql-test/lib/My/Options.pm
View File

@ -150,7 +150,7 @@ sub is_set {
foreach my $set_opt (@$set_opts){
my ($opt_name2, $value2)= _split_option($set_opt);
if ($opt_name1 eq $opt_name2){
if ($opt_name1 eq $opt_name2 and $value1 eq $value2){
# Option already set
return 1;
}

2
mysql-test/lib/My/SafeProcess/safe_process.cc
View File

@ -1,4 +1,4 @@
/* Copyright (c) 2008, 2011, Oracle and/or its affiliates. All rights reserved.
/* Copyright (c) 2008, 2011, Oracle and/or its affiliates
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by

2
mysql-test/lib/My/SafeProcess/safe_process.pl
View File

@ -1,7 +1,7 @@
#!/usr/bin/perl
# -*- cperl -*-
# Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
# Copyright (c) 2007, 2011, Oracle and/or its affiliates
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by

3
mysql-test/lib/My/Test.pm
View File

@ -97,7 +97,8 @@ sub read_test {
chomp($serialized);
$serialized =~ s/\\([0-9a-fA-F]{2})/chr(hex($1))/eg;
my $test= Storable::thaw($serialized);
die "wrong class (hack attempt?): ".ref($test)
use Data::Dumper;
die "wrong class (hack attempt?): ".ref($test)."\n".Dumper(\$test)
unless ref($test) eq 'My::Test';
resfile_from_test($test) if $::opt_resfile;
return $test;

57
mysql-test/lib/mtr_cases.pm
View File

@ -470,20 +470,32 @@ sub collect_one_suite
#print_testcases(@cases);
my @new_cases;
foreach my $comb (@combinations)
TEST: foreach my $test (@cases)
{
foreach my $test (@cases)
{
if ( $test->{'skip'} )
{
push(@new_cases, $test);
next;
}
next if ( $test->{'skip'} );
# Skip this combination if the values it provides
# already are set in master_opt or slave_opt
foreach my $comb (@combinations)
{
# Skip all other combinations if the values they change
# are already fixed in master_opt or slave_opt
if (My::Options::is_set($test->{master_opt}, $comb->{comb_opt}) &&
My::Options::is_set($test->{slave_opt}, $comb->{comb_opt}) ){
next;
}
# Add combination name short name
$test->{combination}= $comb->{name};
# Add the test to new test cases list
push(@new_cases, $test);
next TEST;
}
}
foreach my $comb (@combinations)
{
# Copy test options
my $new_test= My::Test->new();
while (my ($key, $value) = each(%$test)) {
@ -506,17 +518,6 @@ sub collect_one_suite
}
}
# Add the plain test if it was not already added
# as part of a combination
my %added;
foreach my $new_test (@new_cases){
$added{$new_test->{name}}= 1;
}
foreach my $test (@cases){
push(@new_cases, $test) unless $added{$test->{name}};
}
#print_testcases(@new_cases);
@cases= @new_cases;
#print_testcases(@cases);
@ -643,9 +644,6 @@ sub process_opts {
my @opts= @{$tinfo->{$opt_name}};
$tinfo->{$opt_name} = [];
my @plugins;
my %seen;
foreach my $opt (@opts)
{
my $value;
@ -661,14 +659,6 @@ sub process_opts {
next;
}
$value= mtr_match_prefix($opt, "--plugin-load=");
if (defined $value)
{
push @plugins, $value unless $seen{$value};
$seen{$value}=1;
next;
}
$value= mtr_match_prefix($opt, "--result-file=");
if ( defined $value )
{
@ -715,11 +705,6 @@ sub process_opts {
# Ok, this was a real option, add it
push(@{$tinfo->{$opt_name}}, $opt);
}
if (@plugins) {
my $sep = (IS_WINDOWS) ? ';' : ':';
push @{$tinfo->{$opt_name}}, "--plugin-load=" . join($sep, @plugins);
}
}

2
mysql-test/lib/mtr_gprof.pl
View File

@ -1,5 +1,5 @@
# -*- cperl -*-
# Copyright (c) 2004, 2011, Oracle and/or its affiliates. All rights reserved.
# Copyright (c) 2004, 2011, Oracle and/or its affiliates
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by

4
mysql-test/lib/mtr_process.pl
View File

@ -1,5 +1,5 @@
# -*- cperl -*-
# Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
# Copyright (c) 2004, 2010, Oracle and/or its affiliates
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
@ -130,7 +130,7 @@ sub sleep_until_file_created ($$$$) {
mtr_debug("Sleep $sleeptime milliseconds waiting for $pidfile");
# Print extra message every $warn_seconds seconds
if ( $seconds > 1 && $seconds % $warn_seconds == 0 && $seconds < $timeout )
if ( $seconds > 1 && ($seconds*10) % ($warn_seconds*10) == 0 && $seconds < $timeout )
{
my $left= $timeout - $seconds;
mtr_warning("Waited $seconds seconds for $pidfile to be created, " .

50
mysql-test/mysql-test-run.pl
View File

@ -176,6 +176,7 @@ my $DEFAULT_SUITES= join(',', qw(
pbxt
percona
perfschema
plugins
rpl
sphinx
sys_vars
@ -2845,7 +2846,7 @@ sub check_debug_support ($) {
#
# Helper function to find the correct value for the opt_vs_config
# if it was not set explicitly.
#
#
# the configuration with the most recent build dir in sql/ is selected.
#
# note: looking for all BuildLog.htm files everywhere in the tree with the
@ -2874,6 +2875,33 @@ sub fix_vs_config_dir () {
}
#
# Helper function to handle configuration-based subdirectories which Visual
# Studio uses for storing binaries. If opt_vs_config is set, this returns
# a path based on that setting; if not, it returns paths for the default
# /release/ and /debug/ subdirectories.
#
# $exe can be undefined, if the directory itself will be used
#
sub vs_config_dirs ($$) {
my ($path_part, $exe) = @_;
$exe = "" if not defined $exe;
# Don't look in these dirs when not on windows
return () unless IS_WINDOWS;
if ($opt_vs_config)
{
return ("$basedir/$path_part/$opt_vs_config/$exe");
}
return ("$basedir/$path_part/release/$exe",
"$basedir/$path_part/relwithdebinfo/$exe",
"$basedir/$path_part/debug/$exe");
}
sub check_ndbcluster_support ($) {
my $mysqld_variables= shift;
@ -4134,7 +4162,7 @@ sub run_testcase ($$) {
# Allow only alpanumerics pluss _ - + . in combination names,
# or anything beginning with -- (the latter comes from --combination)
my $combination= $tinfo->{combination};
if ($combination && $combination !~ /^\w[-\w\.\+]+$/
if ($combination && $combination !~ /^\w[-\w\.\+]*$/
&& $combination !~ /^--/)
{
mtr_error("Combination '$combination' contains illegal characters");
@ -5301,6 +5329,9 @@ sub mysqld_arguments ($$$) {
}
my $found_skip_core= 0;
my @plugins;
my %seen;
my $plugin;
foreach my $arg ( @$extra_opts )
{
# Skip --defaults-file option since it's handled above.
@ -5320,10 +5351,10 @@ sub mysqld_arguments ($$$) {
{
; # Dont add --skip-log-bin when mysqld have --log-slave-updates in config
}
elsif ($arg eq "")
elsif ($plugin = mtr_match_prefix($arg, "--plugin-load="))
{
# We can get an empty argument when we set environment variables to ""
# (e.g plugin not found). Just skip it.
push @plugins, $plugin unless $seen{$plugin};
$seen{$plugin} = 1;
}
else
{
@ -5341,6 +5372,11 @@ sub mysqld_arguments ($$$) {
mtr_add_arg($args, "--loose-debug-sync-timeout=%s",
$opt_debug_sync_timeout) unless $opt_user_args;
if (@plugins) {
my $sep = (IS_WINDOWS) ? ';' : ':';
mtr_add_arg($args, "--plugin-load=%s" . join($sep, @plugins));
}
return $args;
}
@ -5441,8 +5477,8 @@ sub mysqld_start ($$) {
# Write a message about this to the normal log file
my $trace_name= "$opt_vardir/log/".$mysqld->name().".trace";
mtr_tofile($output,
"NOTE: When running with --valgrind --debug the output from",
"mysqld(where the valgrind messages shows up) is stored ",
"NOTE: When running with --valgrind --debug the output from ",
"mysqld (where the valgrind messages shows up) is stored ",
"together with the trace file to make it ",
"easier to find the exact position of valgrind errors.",
"See trace file $trace_name.\n");

11
mysql-test/r/archive.result
View File

@ -12738,8 +12738,15 @@ INSERT INTO t1 (col1, col2) VALUES (1, "value");
ERROR HY000: Table upgrade required. Please do "REPAIR TABLE `t1`" or dump/reload to fix it!
REPAIR TABLE t1;
Table Op Msg_type Msg_text
test.t1 repair Error Table upgrade required. Please do "REPAIR TABLE `t1`" or dump/reload to fix it!
test.t1 repair status Table is already up to date
test.t1 repair status OK
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`col1` int(11) DEFAULT NULL,
`col2` varchar(20) DEFAULT NULL
) ENGINE=ARCHIVE DEFAULT CHARSET=latin1
SELECT * FROM t1;
col1 col2
DROP TABLE t1;
#
# BUG#48757 - missing .ARZ file causes server crash

9
mysql-test/r/cast.result
View File

@ -714,12 +714,17 @@ Warnings:
Warning 1708 The value of 'max_allowed_packet' should be no less than the value of 'net_buffer_length'
SELECT CONVERT('a', BINARY(2049));
CONVERT('a', BINARY(2049))
NULL
a
Warnings:
Warning 1301 Result of cast_as_binary() was larger than max_allowed_packet (2048) - truncated
SELECT CONVERT('a', CHAR(2049));
CONVERT('a', CHAR(2049))
NULL
a
Warnings:
Warning 1301 Result of cast_as_char() was larger than max_allowed_packet (2048) - truncated
SELECT length(CONVERT(repeat('a',2048), CHAR(2049)));
length(CONVERT(repeat('a',2048), CHAR(2049)))
2048
Warnings:
Warning 1301 Result of cast_as_char() was larger than max_allowed_packet (2048) - truncated
SET @@GLOBAL.max_allowed_packet=default;

3
mysql-test/r/compress.result
View File

@ -1353,6 +1353,8 @@ fld1 fld1
250503 250505
250504 250505
250505 250505
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='outer_join_with_cache=off';
insert into t2 (fld1, companynr) values (999999,99);
select t2.companynr,companyname from t2 left join t4 using (companynr) where t4.companynr is null;
companynr companyname
@ -1428,6 +1430,7 @@ explain select companynr,companyname from t4 left join t2 using (companynr) wher
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where
1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where
SET optimizer_switch=@save_optimizer_switch;
select distinct t2.companynr,t4.companynr from t2,t4 where t2.companynr=t4.companynr+1;
companynr companynr
37 36

8
mysql-test/r/delete.result
View File

@ -126,8 +126,8 @@ a b
2 12
delete ignore t11.*, t12.* from t11,t12 where t11.a = t12.a and t11.b <> (select b from t2 where t11.a < t2.a);
Warnings:
Error 1242 Subquery returns more than 1 row
Error 1242 Subquery returns more than 1 row
Warning 1242 Subquery returns more than 1 row
Warning 1242 Subquery returns more than 1 row
select * from t11;
a b
0 10
@ -146,8 +146,8 @@ a b
2 12
delete ignore from t11 where t11.b <> (select b from t2 where t11.a < t2.a);
Warnings:
Error 1242 Subquery returns more than 1 row
Error 1242 Subquery returns more than 1 row
Warning 1242 Subquery returns more than 1 row
Warning 1242 Subquery returns more than 1 row
select * from t11;
a b
0 10

10
mysql-test/r/derived.result
View File

@ -1,4 +1,6 @@
drop table if exists t1,t2,t3;
set @save_derived_optimizer_switch=@@optimizer_switch;
set optimizer_switch='derived_merge=off,derived_with_keys=off';
select * from (select 2 from DUAL) b;
2
2
@ -190,13 +192,13 @@ pla_id test
explain SELECT STRAIGHT_JOIN d.pla_id, m2.mat_id FROM t1 m2 INNER JOIN (SELECT mp.pla_id, MIN(m1.matintnum) AS matintnum FROM t2 mp INNER JOIN t1 m1 ON mp.mat_id=m1.mat_id GROUP BY mp.pla_id) d ON d.matintnum=m2.matintnum;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY m2 ALL NULL NULL NULL NULL 9
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 9 Using where
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 9 Using where; Using join buffer (flat, BNL join)
2 DERIVED mp ALL NULL NULL NULL NULL 9 Using temporary; Using filesort
2 DERIVED m1 eq_ref PRIMARY PRIMARY 3 test.mp.mat_id 1
explain SELECT STRAIGHT_JOIN d.pla_id, m2.test FROM t1 m2 INNER JOIN (SELECT mp.pla_id, MIN(m1.matintnum) AS matintnum FROM t2 mp INNER JOIN t1 m1 ON mp.mat_id=m1.mat_id GROUP BY mp.pla_id) d ON d.matintnum=m2.matintnum;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY m2 ALL NULL NULL NULL NULL 9
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 9 Using where
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 9 Using where; Using join buffer (flat, BNL join)
2 DERIVED mp ALL NULL NULL NULL NULL 9 Using temporary; Using filesort
2 DERIVED m1 eq_ref PRIMARY PRIMARY 3 test.mp.mat_id 1
drop table t1,t2;
@ -205,6 +207,7 @@ x
1
create user mysqltest_1;
create table t1 select 1 as a;
set optimizer_switch='derived_merge=off,derived_with_keys=off';
select 2 as a from (select * from t1) b;
ERROR 3D000: No database selected
use test;
@ -429,7 +432,7 @@ id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2
1 PRIMARY <derived3> ALL NULL NULL NULL NULL 4 Using join buffer (flat, BNL join)
3 DERIVED t1 ALL NULL NULL NULL NULL 2
3 DERIVED t3 ALL NULL NULL NULL NULL 2 Using where
3 DERIVED t3 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join)
4 SUBQUERY t1 ALL NULL NULL NULL NULL 2
2 SUBQUERY <derived5> ALL NULL NULL NULL NULL 2
5 DERIVED t2 index NULL b 5 NULL 2 Using index
@ -437,3 +440,4 @@ SELECT 1 FROM t1 JOIN v1 ON 1 > (SELECT 1 FROM v2);
ERROR 21000: Subquery returns more than 1 row
DROP TABLE t1, t2;
DROP VIEW v1, v2;
set optimizer_switch=@save_derived_optimizer_switch;

49
mysql-test/r/derived_view.result
View File

@ -1,8 +1,10 @@
drop table if exists t1,t2;
drop view if exists v1,v2,v3,v4;
set @exit_optimizer_switch=@@optimizer_switch;
set @exit_join_cache_level=@@join_cache_level;
set optimizer_switch='derived_merge=on,derived_with_keys=on';
set @save_optimizer_switch=@@optimizer_switch;
set join_cache_level=1;
create table t1(f1 int, f11 int);
create table t2(f2 int, f22 int);
insert into t1 values(1,1),(2,2),(3,3),(5,5),(9,9),(7,7);
@ -1482,6 +1484,8 @@ INSERT INTO t1 VALUES (1,NULL,NULL), (5,'r','r'), (7,'y','y');
CREATE TABLE t2 (a int NOT NULL , b int, c varchar(1));
INSERT INTO t2 VALUES (4,3,'r');
CREATE ALGORITHM=TEMPTABLE VIEW v1 AS SELECT * FROM t1;
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='semijoin_with_cache=off';
SET SESSION optimizer_switch='derived_with_keys=off';
EXPLAIN
SELECT * FROM t3
@ -1489,8 +1493,8 @@ WHERE t3.b IN (SELECT v1.b FROM v1, t2
WHERE t2.c = v1.c AND t2.c = v1.b AND v1.b = t3.c);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 system NULL NULL NULL NULL 1
1 PRIMARY t3 ALL NULL NULL NULL NULL 2 Using where; Start temporary
1 PRIMARY <derived3> ALL NULL NULL NULL NULL 3 Using where; End temporary
1 PRIMARY t3 ALL NULL NULL NULL NULL 2 Using where
1 PRIMARY <derived3> ALL NULL NULL NULL NULL 3 Using where; Start temporary; End temporary
3 DERIVED t1 ALL NULL NULL NULL NULL 3
SELECT * FROM t3
WHERE t3.b IN (SELECT v1.b FROM v1, t2
@ -1512,6 +1516,7 @@ WHERE t3.b IN (SELECT v1.b FROM v1, t2
WHERE t2.c = v1.c AND t2.c = v1.b AND v1.b = t3.c);
a b c
20 r r
SET optimizer_switch=@save_optimizer_switch;
DROP VIEW v1;
DROP TABLE t1,t2,t3;
#
@ -1597,6 +1602,7 @@ CREATE TABLE t3 (
b int NOT NULL, e varchar(1) NOT NULL, d varchar(1) NOT NULL, KEY (e,b)
);
INSERT INTO t3 VALUES (4,'x','x'),(9,'w','w'),(4,'d','d'),(8,'e','e');
INSERT INTO t3 VALUES (14,'a','a'),(19,'b','b'),(14,'c','c'),(18,'d','d');
CREATE TABLE t4 (i int NOT NULL, m varchar(1) NOT NULL) ;
INSERT INTO t4 VALUES (8,'m'),(9,'d'),(2,'s'),(4,'r'),(8,'m');
CREATE TABLE t5 (
@ -1612,30 +1618,36 @@ SET SESSION join_buffer_size = 512;
EXPLAIN
SELECT t2.d FROM t1,t2,v3 WHERE v3.e = t2.d AND v3.i < 3;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ALL NULL NULL NULL NULL 3
1 SIMPLE t3 ref e e 3 test.t2.d 1 Using index
1 SIMPLE t5 ALL NULL NULL NULL NULL 2 Using join buffer (flat, BNL join)
1 SIMPLE t5 ALL NULL NULL NULL NULL 2
1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join)
1 SIMPLE t2 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join)
1 SIMPLE t3 ref e e 3 test.t2.d 1 Using index
1 SIMPLE t4 ALL NULL NULL NULL NULL 5 Using where; Using join buffer (flat, BNL join)
SELECT t2.d FROM t1,t2,v3 WHERE v3.e = t2.d AND v3.i < 3;
d
w
d
e
w
w
w
w
w
d
e
w
d
d
d
d
d
d
d
d
d
d
d
e
w
d
e
w
d
e
w
d
e
e
e
SET SESSION join_cache_level = DEFAULT;
SET SESSION join_buffer_size = DEFAULT;
@ -1649,6 +1661,8 @@ INSERT INTO t1 VALUES ('c'), ('a');
CREATE TABLE t2 (a int, b int, c varchar(1));
INSERT INTO t2 VALUES (29,8,'c'), (39,7,'b');
CREATE TABLE t3 (b int);
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='outer_join_with_cache=off';
EXPLAIN EXTENDED
SELECT t.b, t.c, t1.a
FROM t1, (SELECT t2.b, t2.c FROM t3 RIGHT JOIN t2 ON t2.a = t3.b) AS t
@ -1710,6 +1724,7 @@ FROM t1, (SELECT t2.b, t2.c FROM t3 RIGHT JOIN t2 ON t2.a = t3.b) AS t
WHERE t.b <> 0 AND t.c = t1.a;
b c a
8 c c
SET optimizer_switch=@save_optimizer_switch;
DROP TABLE t1,t2,t3;
#
# Bug #880724: materialized const view as inner table of outer join
@ -1719,6 +1734,8 @@ INSERT INTO t1 VALUES (9,NULL), (6,'r'), (7,'c');
CREATE TABLE t2 (a int);
INSERT INTO t2 VALUES (6);
CREATE ALGORITHM=TEMPTABLE VIEW v2 AS SELECT * FROM t2;
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='outer_join_with_cache=off';
SET SESSION optimizer_switch = 'derived_with_keys=on';
SET SESSION join_cache_level = 4;
EXPLAIN
@ -1749,6 +1766,7 @@ a b
5 r
9 y
SET SESSION join_cache_level = default;
SET optimizer_switch=@save_optimizer_switch;
DROP VIEW v2;
DROP TABLE t1,t2,t3;
#
@ -1872,3 +1890,4 @@ col_varchar_key pk col_varchar_key col_varchar_nokey
set max_heap_table_size= @tmp_882994;
drop table t1,t2,t3;
set optimizer_switch=@exit_optimizer_switch;
set join_cache_level=@exit_join_cache_level;

3
mysql-test/r/distinct.result
View File

@ -280,6 +280,8 @@ unique (id, idx)
insert into t1 values (1,'yes'), (2,'no');
insert into t2 values (1,1);
insert into t3 values (1,1);
set @save_join_cache_level=@@join_cache_level;
set join_cache_level=1;
EXPLAIN
SELECT DISTINCT
t1.id
@ -326,6 +328,7 @@ AND ((t1.id=j_lj_t3.id AND t3_lj.id IS NULL) OR (t1.id=t3.id AND t3.idx=2));
id
2
drop table t1,t2,t3;
set join_cache_level=@save_join_cache_level;
create table t1 (a int not null, b int not null, t time);
insert into t1 values (1,1,"00:06:15"),(1,2,"00:06:15"),(1,2,"00:30:15"),(1,3,"00:06:15"),(1,3,"00:30:15");
select a,sec_to_time(sum(time_to_sec(t))) from t1 group by a,b;

4
mysql-test/r/endspace.result
View File

@ -203,13 +203,13 @@ teststring
teststring
select text1, length(text1) from t1 where text1='teststring' or text1 like 'teststring_%';
text1 length(text1)
teststring 10
teststring 11
teststring 10
teststring 11
select text1, length(text1) from t1 where text1='teststring' or text1 >= 'teststring\t';
text1 length(text1)
teststring 10
teststring 11
teststring 10
teststring 11
select concat('|', text1, '|') from t1 order by text1;
concat('|', text1, '|')

15
mysql-test/r/error_simulation.result
View File

@ -62,6 +62,8 @@ INSERT INTO t2 VALUES (1, 1, 'data');
# re-scanned for every record in the outer table. if we used inner join,
# we would need to have thousands of records and/or more columns in both
# tables so that the join buffer is filled and re-scans are triggered).
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='outer_join_with_cache=off';
SET SESSION debug_dbug= '+d,only_one_Unique_may_be_created';
EXPLAIN
SELECT * FROM t1 LEFT JOIN t2 ON ( t2.a < 10 OR t2.b < 10 );
@ -81,7 +83,20 @@ a a b filler
8 1 1 data
9 1 1 data
SET SESSION debug_dbug= DEFAULT;
SET optimizer_switch=@save_optimizer_switch;
DROP TABLE t1, t2;
#
# Bug#11747970 34660: CRASH WHEN FEDERATED TABLE LOSES CONNECTION DURING INSERT ... SELECT
#
CREATE TABLE t1(f1 INT, KEY(f1));
CREATE TABLE t2(f1 INT);
INSERT INTO t1 VALUES (1),(2);
INSERT INTO t2 VALUES (1),(2);
SET SESSION debug_dbug="+d,bug11747970_raise_error";
INSERT IGNORE INTO t2 SELECT f1 FROM t1 a WHERE NOT EXISTS (SELECT 1 FROM t2 b WHERE a.f1 = b.f1);
ERROR HY000: Unknown error
SET SESSION debug_dbug = DEFAULT;
DROP TABLE t1,t2;
#
# End of 5.1 tests
#

20
mysql-test/r/explain.result
View File

@ -193,24 +193,27 @@ create table t2 (dt datetime not null);
insert into t1 values ('2001-01-01 1:1:1', '1:1:1'),
('2001-01-01 1:1:1', '1:1:1');
insert into t2 values ('2001-01-01 1:1:1'), ('2001-01-01 1:1:1');
SET @save_join_cache_level=@@join_cache_level;
SET join_cache_level=0;
flush tables;
EXPLAIN SELECT OUTR.dt FROM t1 AS OUTR WHERE OUTR.dt IN (SELECT INNR.dt FROM t2 AS INNR WHERE OUTR.dt IS NULL );
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY OUTR ALL NULL NULL NULL NULL 2 Using where; Start temporary
1 PRIMARY INNR ALL NULL NULL NULL NULL 2 Using where; End temporary
1 PRIMARY OUTR ALL NULL NULL NULL NULL 2 Using where
1 PRIMARY INNR ALL NULL NULL NULL NULL 2 Using where; FirstMatch(OUTR)
flush tables;
SELECT OUTR.dt FROM t1 AS OUTR WHERE OUTR.dt IN (SELECT INNR.dt FROM t2 AS INNR WHERE OUTR.dt IS NULL );
dt
flush tables;
EXPLAIN SELECT OUTR.dt FROM t1 AS OUTR WHERE OUTR.dt IN ( SELECT INNR.dt FROM t2 AS INNR WHERE OUTR.t < '2005-11-13 7:41:31' );
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY OUTR ALL NULL NULL NULL NULL 2 Using where; Start temporary
1 PRIMARY INNR ALL NULL NULL NULL NULL 2 Using where; End temporary
1 PRIMARY OUTR ALL NULL NULL NULL NULL 2 Using where
1 PRIMARY INNR ALL NULL NULL NULL NULL 2 Using where; FirstMatch(OUTR)
flush tables;
SELECT OUTR.dt FROM t1 AS OUTR WHERE OUTR.dt IN ( SELECT INNR.dt FROM t2 AS INNR WHERE OUTR.t < '2005-11-13 7:41:31' );
dt
2001-01-01 01:01:01
2001-01-01 01:01:01
SET join_cache_level=@save_join_cache_level;
drop tables t1, t2;
#
# Bug#47669: Query showed by EXPLAIN EXTENDED gives different result from original query
@ -279,7 +282,7 @@ CREATE TABLE t1(f1 VARCHAR(6) NOT NULL,
FULLTEXT KEY(f1),UNIQUE(f1));
INSERT INTO t1 VALUES ('test');
EXPLAIN SELECT 1 FROM t1
WHERE 1 > ALL((SELECT 1 FROM t1 JOIN t1 a ON (MATCH(t1.f1) AGAINST (""))
WHERE 1 > ALL((SELECT t1.f1 FROM t1 JOIN t1 a ON (MATCH(t1.f1) AGAINST (""))
WHERE t1.f1 GROUP BY t1.f1));
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1
@ -287,7 +290,7 @@ id select_type table type possible_keys key key_len ref rows Extra
2 SUBQUERY t1 fulltext f1_2,f1 f1 0 1 Using where
PREPARE stmt FROM
'EXPLAIN SELECT 1 FROM t1
WHERE 1 > ALL((SELECT 1 FROM t1 RIGHT OUTER JOIN t1 a
WHERE 1 > ALL((SELECT t1.f1 FROM t1 RIGHT OUTER JOIN t1 a
ON (MATCH(t1.f1) AGAINST (""))
WHERE t1.f1 GROUP BY t1.f1))';
EXECUTE stmt;
@ -303,7 +306,7 @@ id select_type table type possible_keys key key_len ref rows Extra
DEALLOCATE PREPARE stmt;
PREPARE stmt FROM
'EXPLAIN SELECT 1 FROM t1
WHERE 1 > ALL((SELECT 1 FROM t1 JOIN t1 a
WHERE 1 > ALL((SELECT t1.f1 FROM t1 JOIN t1 a
ON (MATCH(t1.f1) AGAINST (""))
WHERE t1.f1 GROUP BY t1.f1))';
EXECUTE stmt;
@ -339,6 +342,8 @@ DROP TABLE t1;
CREATE TABLE t1 (a int) ;
CREATE TABLE t2 (a int) ;
INSERT INTO t2 VALUES (8);
set @tmp_optimizer_switch=@@optimizer_switch;
set optimizer_switch='derived_merge=off,derived_with_keys=off';
EXPLAIN EXTENDED
SELECT * FROM ( SELECT t1.a FROM t1,t2 WHERE t2.a = t1.a ) AS t;
id select_type table type possible_keys key key_len ref rows filtered Extra
@ -346,4 +351,5 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
2 DERIVED NULL NULL NULL NULL NULL NULL NULL NULL no matching row in const table
Warnings:
Note 1003 select NULL AS `a` from (select NULL AS `a` from `test`.`t1` where 0) `t`
set optimizer_switch=@tmp_optimizer_switch;
DROP TABLE t1,t2;

4
mysql-test/r/foreign_key.result
View File

@ -29,8 +29,8 @@ id
6
delete ignore from t1;
Warnings:
Error 1451 Cannot delete or update a parent row: a foreign key constraint fails (`test`.`t2`, CONSTRAINT `t2_ibfk_1` FOREIGN KEY (`id`) REFERENCES `t1` (`id`))
Error 1451 Cannot delete or update a parent row: a foreign key constraint fails (`test`.`t2`, CONSTRAINT `t2_ibfk_1` FOREIGN KEY (`id`) REFERENCES `t1` (`id`))
Warning 1451 Cannot delete or update a parent row: a foreign key constraint fails (`test`.`t2`, CONSTRAINT `t2_ibfk_1` FOREIGN KEY (`id`) REFERENCES `t1` (`id`))
Warning 1451 Cannot delete or update a parent row: a foreign key constraint fails (`test`.`t2`, CONSTRAINT `t2_ibfk_1` FOREIGN KEY (`id`) REFERENCES `t1` (`id`))
select row_count();
row_count()
-1

2
mysql-test/r/fulltext.result
View File

@ -692,10 +692,8 @@ PREPARE stmt FROM
WHERE t1.f1 GROUP BY t1.f1))';
EXECUTE stmt;
1
1
EXECUTE stmt;
1
1
DEALLOCATE PREPARE stmt;
DROP TABLE t1;
End of 5.1 tests

14
mysql-test/r/fulltext_left_join.result
View File

@ -97,3 +97,17 @@ INSERT INTO t2(b,c) VALUES(2,'castle'),(3,'castle');
SELECT * FROM t1 LEFT JOIN t2 ON a=b WHERE MATCH(c) AGAINST('+castle' IN BOOLEAN MODE);
a b c
DROP TABLE t1, t2;
#
# BUG#906357: Incorrect result with outer join and full text match
#
CREATE TABLE t1(f1 VARCHAR(6) NOT NULL, FULLTEXT KEY(f1), UNIQUE(f1));
INSERT INTO t1 VALUES ('test');
CREATE TABLE t2(f2 VARCHAR(6) NOT NULL, FULLTEXT KEY(f2), UNIQUE(f2));
INSERT INTO t2 VALUES ('test');
SELECT * FROM t2 LEFT OUTER JOIN t1 ON (MATCH(f1) against (""));
f2 f1
test NULL
SELECT * FROM t1 RIGHT OUTER JOIN t2 ON (MATCH(f1) against (""));
f1 f2
NULL test
DROP table t1,t2;

36
mysql-test/r/fulltext_order_by.result
View File

@ -44,24 +44,24 @@ a FORMAT(MATCH (message) AGAINST ('steve'),6)
SELECT a, MATCH (message) AGAINST ('steve' IN BOOLEAN MODE) FROM t1 WHERE a=7 and MATCH (message) AGAINST ('steve' IN BOOLEAN MODE) ORDER BY 1;
a MATCH (message) AGAINST ('steve' IN BOOLEAN MODE)
7 1
SELECT a, FORMAT(MATCH (message) AGAINST ('steve'),6) as rel FROM t1 ORDER BY rel;
a rel
1 0.000000
2 0.000000
3 0.000000
5 0.000000
6 0.000000
7 0.895690
4 0.905873
SELECT a, MATCH (message) AGAINST ('steve' IN BOOLEAN MODE) as rel FROM t1 ORDER BY rel;
a rel
1 0
2 0
3 0
5 0
6 0
4 1
7 1
SELECT IF(a=7,'steve-is-cool',IF(a=4,'cool', 'other')), FORMAT(MATCH (message) AGAINST ('steve'),6) as rel FROM t1 ORDER BY rel;
IF(a=7,'steve-is-cool',IF(a=4,'cool', 'other')) rel
other 0.000000
other 0.000000
other 0.000000
other 0.000000
other 0.000000
steve-is-cool 0.895690
cool 0.905873
SELECT IF(a=7,'match',IF(a=4,'match', 'no-match')), MATCH (message) AGAINST ('steve' IN BOOLEAN MODE) as rel FROM t1 ORDER BY rel;
IF(a=7,'match',IF(a=4,'match', 'no-match')) rel
no-match 0
no-match 0
no-match 0
no-match 0
no-match 0
match 1
match 1
alter table t1 add key m (message);
explain SELECT message FROM t1 WHERE MATCH (message) AGAINST ('steve') ORDER BY message;
id select_type table type possible_keys key key_len ref rows Extra

18
mysql-test/r/func_group.result
View File

@ -215,6 +215,8 @@ a1 a2 a1 a2
10 bbb BBB 20
20 zzz AAA 10
20 zzz BBB 20
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='outer_join_with_cache=off';
select max(t1.a1), max(t2.a1) from t1, t2 where t2.a2=9;
max(t1.a1) max(t2.a1)
NULL NULL
@ -245,6 +247,7 @@ NULL
select max(t1.a2),max(t2.a1) from t1 left outer join t2 on t1.a1=10;
max(t1.a2) max(t2.a1)
zzz BBB
SET optimizer_switch=@save_optimizer_switch;
drop table t1,t2;
CREATE TABLE t1 (a int, b int);
select count(b), sum(b), avg(b), std(b), min(b), max(b), bit_and(b), bit_or(b) from t1;
@ -1865,7 +1868,7 @@ SELECT v
FROM t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
2 SUBQUERY t2 ALL NULL NULL NULL NULL 2
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2
Warnings:
Warning 1292 Truncated incorrect INTEGER value: 'j'
@ -1891,7 +1894,7 @@ SELECT v
FROM t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No matching min/max row
2 SUBQUERY t2 ALL NULL NULL NULL NULL 2
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2
#
# 3) Test that subquery materialization is setup for query with
@ -1915,7 +1918,7 @@ SELECT v
FROM t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
2 SUBQUERY t2 ALL NULL NULL NULL NULL 2
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2
#
# 4) Test that subquery materialization is setup for query with
@ -1930,6 +1933,8 @@ FROM t2);
MIN(a)
NULL
set @tmp_optimizer_switch=@@optimizer_switch;
set optimizer_switch='derived_merge=off,derived_with_keys=off';
EXPLAIN
SELECT MIN(a)
FROM (SELECT a FROM empty1) tt
@ -1938,8 +1943,9 @@ SELECT v
FROM t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <derived2> system NULL NULL NULL NULL 0 const row not found
3 SUBQUERY t2 ALL NULL NULL NULL NULL 2
3 MATERIALIZED t2 ALL NULL NULL NULL NULL 2
2 DERIVED NULL NULL NULL NULL NULL NULL NULL no matching row in const table
set optimizer_switch=@tmp_optimizer_switch;
#
# 5) Test that subquery materialization is setup for query with
@ -1964,8 +1970,8 @@ SELECT v
FROM t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 index NULL PRIMARY 4 NULL 2 Using where; Using index
3 SUBQUERY t2 ALL NULL NULL NULL NULL 2
2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
3 MATERIALIZED t2 ALL NULL NULL NULL NULL 2
2 MATERIALIZED NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
set @@optimizer_switch=@save_optimizer_switch;
#
# Cleanup for BUG#46680

3
mysql-test/r/func_op.result
View File

@ -40,9 +40,12 @@ create table t1(a int);
create table t2(a int, b int);
insert into t1 values (1), (2), (3);
insert into t2 values (1, 7), (3, 7);
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='outer_join_with_cache=off';
select t1.a, t2.a, t2.b, bit_count(t2.b) from t1 left join t2 on t1.a=t2.a;
a a b bit_count(t2.b)
1 1 7 3
2 NULL NULL NULL
3 3 7 3
SET optimizer_switch=@save_optimizer_switch;
drop table t1, t2;

3
mysql-test/r/func_str.result
View File

@ -2550,6 +2550,8 @@ End of 5.0 tests
drop table if exists t1;
create table t1(f1 tinyint default null)engine=myisam;
insert into t1 values (-1),(null);
set @tmp_optimizer_switch=@@optimizer_switch;
set optimizer_switch='derived_merge=off,derived_with_keys=off';
explain select 1 as a from t1,(select decode(f1,f1) as b from t1) a;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2
@ -2560,6 +2562,7 @@ id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 Using join buffer (flat, BNL join)
2 DERIVED t1 ALL NULL NULL NULL NULL 2
set optimizer_switch=@tmp_optimizer_switch;
drop table t1;
#
# Bug#49141: Encode function is significantly slower in 5.1 compared to 5.0

34
mysql-test/r/gis.result
View File

@ -968,7 +968,7 @@ COUNT(*)
EXPLAIN
SELECT COUNT(*) FROM t2 WHERE p=POINTFROMTEXT('POINT(1 2)');
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ref p p 28 const 1 Using where
1 SIMPLE t2 ref p p 28 const # Using where
SELECT COUNT(*) FROM t2 WHERE p=POINTFROMTEXT('POINT(1 2)');
COUNT(*)
2
@ -1061,39 +1061,9 @@ drop table t1;
#
create table t1(a char(32) not null) engine=myisam;
create spatial index i on t1 (a);
ERROR 42000: A SPATIAL index may only contain a geometrical type column
ERROR HY000: Incorrect arguments to SPATIAL INDEX
drop table t1;
End of 5.1 tests
CREATE TABLE t1(
col0 BINARY NOT NULL,
col2 TIMESTAMP,
SPATIAL INDEX i1 (col0)
) ENGINE=MyISAM;
ERROR 42000: A SPATIAL index may only contain a geometrical type column
CREATE TABLE t1 (
col0 BINARY NOT NULL,
col2 TIMESTAMP
) ENGINE=MyISAM;
CREATE SPATIAL INDEX idx0 ON t1(col0);
ERROR 42000: A SPATIAL index may only contain a geometrical type column
ALTER TABLE t1 ADD SPATIAL INDEX i1 (col0);
ERROR 42000: A SPATIAL index may only contain a geometrical type column
CREATE TABLE t2 (
col0 INTEGER NOT NULL,
col1 POINT,
col2 POINT
);
CREATE SPATIAL INDEX idx0 ON t2 (col1, col2);
ERROR HY000: Incorrect arguments to SPATIAL INDEX
CREATE TABLE t3 (
col0 INTEGER NOT NULL,
col1 POINT,
col2 LINESTRING,
SPATIAL INDEX i1 (col1, col2)
);
ERROR HY000: Incorrect arguments to SPATIAL INDEX
DROP TABLE t1;
DROP TABLE t2;
select ST_AREA(ST_GEOMCOLLFROMTEXT(' GEOMETRYCOLLECTION(LINESTRING(100 100, 31 10, 77 80), POLYGON((0 0,4 7,1 1,0 0)), POINT(20 20))'));
ST_AREA(ST_GEOMCOLLFROMTEXT(' GEOMETRYCOLLECTION(LINESTRING(100 100, 31 10, 77 80), POLYGON((0 0,4 7,1 1,0 0)), POINT(20 20))'))
1.5

163
mysql-test/r/greedy_optimizer.result
View File

@ -1,4 +1,6 @@
drop table if exists t1,t2,t3,t4,t5,t6,t7;
set @save_join_cache_level=@@join_cache_level;
set join_cache_level=1;
create table t1 (
c11 integer,c12 integer,c13 integer,c14 integer,c15 integer,c16 integer,
primary key (c11)
@ -202,28 +204,28 @@ select @@optimizer_search_depth;
0
explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 3
1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where
1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1
1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index
1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join)
show status like 'Last_query_cost';
Variable_name Value
Last_query_cost 821.837037
Last_query_cost 1371.437037
explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 3
1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where
1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1
1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index
1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join)
show status like 'Last_query_cost';
Variable_name Value
Last_query_cost 821.837037
Last_query_cost 1371.437037
explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where
@ -231,11 +233,11 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.c21 1 Using where
1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index
1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
show status like 'Last_query_cost';
Variable_name Value
Last_query_cost 289.418727
Last_query_cost 362.618727
explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where
@ -243,11 +245,11 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.c21 1 Using where
1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index
1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
show status like 'Last_query_cost';
Variable_name Value
Last_query_cost 289.418727
Last_query_cost 362.618727
explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where
@ -255,11 +257,11 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.c21 1 Using where
1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where
1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
show status like 'Last_query_cost';
Variable_name Value
Last_query_cost 289.418727
Last_query_cost 362.618727
explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where
@ -267,11 +269,11 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.c21 1 Using where
1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where
1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
show status like 'Last_query_cost';
Variable_name Value
Last_query_cost 289.418727
Last_query_cost 362.618727
set optimizer_search_depth=1;
select @@optimizer_search_depth;
@@optimizer_search_depth
@ -287,7 +289,7 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index
show status like 'Last_query_cost';
Variable_name Value
Last_query_cost 821.837037
Last_query_cost 1693.637037
explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 3
@ -299,7 +301,7 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index
show status like 'Last_query_cost';
Variable_name Value
Last_query_cost 821.837037
Last_query_cost 1693.637037
explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using where
@ -311,7 +313,7 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
show status like 'Last_query_cost';
Variable_name Value
Last_query_cost 794.837037
Last_query_cost 844.037037
explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using where
@ -323,7 +325,7 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
show status like 'Last_query_cost';
Variable_name Value
Last_query_cost 794.837037
Last_query_cost 844.037037
explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using where
@ -335,7 +337,7 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
show status like 'Last_query_cost';
Variable_name Value
Last_query_cost 794.837037
Last_query_cost 844.037037
explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using where
@ -347,35 +349,35 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
show status like 'Last_query_cost';
Variable_name Value
Last_query_cost 794.837037
Last_query_cost 844.037037
set optimizer_search_depth=62;
select @@optimizer_search_depth;
@@optimizer_search_depth
62
explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 3
1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where
1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1
1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index
1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join)
show status like 'Last_query_cost';
Variable_name Value
Last_query_cost 821.837037
Last_query_cost 1371.437037
explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 3
1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where
1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1
1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index
1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join)
show status like 'Last_query_cost';
Variable_name Value
Last_query_cost 821.837037
Last_query_cost 1371.437037
explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where
@ -383,11 +385,11 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.c21 1 Using where
1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index
1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
show status like 'Last_query_cost';
Variable_name Value
Last_query_cost 289.418727
Last_query_cost 362.618727
explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where
@ -395,11 +397,11 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.c21 1 Using where
1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index
1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
show status like 'Last_query_cost';
Variable_name Value
Last_query_cost 289.418727
Last_query_cost 362.618727
explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where
@ -407,11 +409,11 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.c21 1 Using where
1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where
1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
show status like 'Last_query_cost';
Variable_name Value
Last_query_cost 289.418727
Last_query_cost 362.618727
explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where
@ -419,11 +421,11 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.c21 1 Using where
1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where
1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
show status like 'Last_query_cost';
Variable_name Value
Last_query_cost 289.418727
Last_query_cost 362.618727
set optimizer_prune_level=1;
select @@optimizer_prune_level;
@@optimizer_prune_level
@ -443,7 +445,7 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index
show status like 'Last_query_cost';
Variable_name Value
Last_query_cost 821.837037
Last_query_cost 1693.637037
explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 3
@ -455,55 +457,55 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index
show status like 'Last_query_cost';
Variable_name Value
Last_query_cost 821.837037
Last_query_cost 1693.637037
explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using where
1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index
1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index
1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
show status like 'Last_query_cost';
Variable_name Value
Last_query_cost 794.837037
Last_query_cost 844.037037
explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using where
1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index
1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index
1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
show status like 'Last_query_cost';
Variable_name Value
Last_query_cost 794.837037
Last_query_cost 844.037037
explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using where
1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where
1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1
1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where
1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
show status like 'Last_query_cost';
Variable_name Value
Last_query_cost 794.837037
Last_query_cost 844.037037
explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using where
1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where
1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1
1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where
1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
show status like 'Last_query_cost';
Variable_name Value
Last_query_cost 794.837037
Last_query_cost 844.037037
set optimizer_search_depth=1;
select @@optimizer_search_depth;
@@optimizer_search_depth
@ -519,7 +521,7 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index
show status like 'Last_query_cost';
Variable_name Value
Last_query_cost 821.837037
Last_query_cost 1693.637037
explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 3
@ -531,7 +533,7 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index
show status like 'Last_query_cost';
Variable_name Value
Last_query_cost 821.837037
Last_query_cost 1693.637037
explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using where
@ -543,7 +545,7 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
show status like 'Last_query_cost';
Variable_name Value
Last_query_cost 794.837037
Last_query_cost 844.037037
explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using where
@ -555,7 +557,7 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
show status like 'Last_query_cost';
Variable_name Value
Last_query_cost 794.837037
Last_query_cost 844.037037
explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using where
@ -567,7 +569,7 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
show status like 'Last_query_cost';
Variable_name Value
Last_query_cost 794.837037
Last_query_cost 844.037037
explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using where
@ -579,7 +581,7 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
show status like 'Last_query_cost';
Variable_name Value
Last_query_cost 794.837037
Last_query_cost 844.037037
set optimizer_search_depth=62;
select @@optimizer_search_depth;
@@optimizer_search_depth
@ -595,7 +597,7 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index
show status like 'Last_query_cost';
Variable_name Value
Last_query_cost 821.837037
Last_query_cost 1693.637037
explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 3
@ -607,55 +609,55 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index
show status like 'Last_query_cost';
Variable_name Value
Last_query_cost 821.837037
Last_query_cost 1693.637037
explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using where
1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index
1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index
1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
show status like 'Last_query_cost';
Variable_name Value
Last_query_cost 794.837037
Last_query_cost 844.037037
explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using where
1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index
1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index
1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
show status like 'Last_query_cost';
Variable_name Value
Last_query_cost 794.837037
Last_query_cost 844.037037
explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using where
1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where
1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1
1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where
1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
show status like 'Last_query_cost';
Variable_name Value
Last_query_cost 794.837037
Last_query_cost 844.037037
explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using where
1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where
1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1
1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where
1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
show status like 'Last_query_cost';
Variable_name Value
Last_query_cost 794.837037
Last_query_cost 844.037037
drop table t1,t2,t3,t4,t5,t6,t7;
CREATE TABLE t1 (a int, b int, d int, i int);
INSERT INTO t1 VALUES (1,1,1,1);
@ -734,3 +736,4 @@ t4 LEFT JOIN (t5 JOIN t5_1 ON t5.l = t5_1.l) ON t5.d = t4.d
SET optimizer_search_depth = DEFAULT;
DROP TABLE t1,t2,t2_1,t3,t3_1,t4,t4_1,t5,t5_1;
End of 5.0 tests
set join_cache_level=@save_join_cache_level;

11
mysql-test/r/group_by.result
View File

@ -451,6 +451,8 @@ drop table t1,t2;
CREATE TABLE t1 (ID1 int, ID2 int, ID int NOT NULL AUTO_INCREMENT,PRIMARY KEY(ID
));
insert into t1 values (1,244,NULL),(2,243,NULL),(134,223,NULL),(185,186,NULL);
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='outer_join_with_cache=off';
select S.ID as xID, S.ID1 as xID1 from t1 as S left join t1 as yS on S.ID1 between yS.ID1 and yS.ID2;
xID xID1
1 1
@ -469,6 +471,7 @@ xID xID1 Level
2 2 **
3 134 ***
4 185 ****
SET optimizer_switch=@save_optimizer_switch;
drop table t1;
CREATE TABLE t1 (
pid int(11) unsigned NOT NULL default '0',
@ -1540,12 +1543,15 @@ USE INDEX FOR JOIN (i2)
USE INDEX FOR JOIN (i2,i2);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index NULL i2 9 NULL 144 Using index
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='semijoin_with_cache=off';
EXPLAIN SELECT 1 FROM t1 WHERE a IN
(SELECT a FROM t1 USE INDEX (i2) IGNORE INDEX (i2));
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 index PRIMARY,i2 PRIMARY 4 NULL 144 Using index
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
2 SUBQUERY t1 ALL NULL NULL NULL NULL 144
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 144
SET optimizer_switch=@save_optimizer_switch;
CREATE TABLE t2 (a INT, b INT, KEY(a));
INSERT INTO t2 VALUES (1, 1), (2, 2), (3,3), (4,4);
EXPLAIN SELECT a, SUM(b) FROM t2 GROUP BY a LIMIT 2;
@ -1554,11 +1560,14 @@ id select_type table type possible_keys key key_len ref rows Extra
EXPLAIN SELECT a, SUM(b) FROM t2 IGNORE INDEX (a) GROUP BY a LIMIT 2;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ALL NULL NULL NULL NULL 4 Using temporary; Using filesort
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='semijoin_with_cache=off';
EXPLAIN SELECT 1 FROM t2 WHERE a IN
(SELECT a FROM t1 USE INDEX (i2) IGNORE INDEX (i2));
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 index a a 5 NULL 4 Using index
1 PRIMARY t1 ALL NULL NULL NULL NULL 144 Using where; FirstMatch(t2)
SET optimizer_switch=@save_optimizer_switch;
DROP TABLE t1, t2;
CREATE TABLE t1(
a INT,

253
mysql-test/r/group_min_max.result
View File

@ -1424,6 +1424,8 @@ c a b h312 e312 h312
c b b p322 m322 p322
d a b h412 e412 h412
d b b p422 m422 p422
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='semijoin_with_cache=off';
explain select a1,a2,b,c,min(c), max(c) from t1
where exists ( select * from t2
where t2.c in (select c from t3 where t3.c > t1.b) and
@ -1455,6 +1457,7 @@ d a a d411 a411 d411
d a b h412 e412 h412
d b a l421 i421 l421
d b b p422 m422 p422
SET optimizer_switch=@save_optimizer_switch;
explain select a1,a2,b,c,min(c), max(c) from t1
where exists ( select * from t2 where t1.c > 'a' and t2.c > 'b1' )
group by a1,a2,b;
@ -1481,6 +1484,8 @@ d a a a411 a411 d411
d a b e412 e412 h412
d b a i421 i421 l421
d b b m422 m422 p422
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='semijoin_with_cache=off';
explain select a1,a2,b,c,min(c), max(c) from t1
where exists ( select * from t2
where t2.c in (select c from t3 where t3.c > t1.c) and
@ -1512,6 +1517,7 @@ d a a a411 a411 d411
d a b e412 e412 h412
d b a i421 i421 l421
d b b m422 m422 o422
SET optimizer_switch=@save_optimizer_switch;
explain select a1,a2,b,min(c),max(c) from t1 where (a1 >= 'c' or a2 < 'b') and (b > 'a') group by a1,a2,b;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 range idx_t1_0,idx_t1_1,idx_t1_2 idx_t1_1 147 NULL 17 Using where; Using index for group-by
@ -2403,7 +2409,7 @@ a IN (SELECT max(b) FROM t1 GROUP BY a HAVING a < 2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 8 Using where
1 PRIMARY t1_outer ref a a 5 <subquery2>.max(b) 2 Using index
2 SUBQUERY t1 range NULL a 5 NULL 8 Using index for group-by
2 MATERIALIZED t1 range NULL a 5 NULL 8 Using index for group-by
EXPLAIN SELECT 1 FROM t1 AS t1_outer GROUP BY a HAVING
a > (SELECT max(b) FROM t1 GROUP BY a HAVING a < 2);
id select_type table type possible_keys key key_len ref rows Extra
@ -2927,6 +2933,251 @@ ORDER BY min_a;
min_a
NULL
DROP TABLE t1;
#
# LP BUG#888456 Wrong result with DISTINCT , ANY , subquery_cache=off , NOT NULL
#
CREATE TABLE t1 ( a int NOT NULL) ;
INSERT INTO t1 VALUES (28),(29),(9);
CREATE TABLE t2 ( a int, KEY (a)) ;
INSERT INTO t2 VALUES (1),(1),(1),(4),(4),(5),(5),(8),(8),(9);
explain select (select t2.a from t2 where t2.a >= t1.a group by t2.a) from t1;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3
2 DEPENDENT SUBQUERY t2 index a a 5 NULL 10 Using where; Using index
select (select t2.a from t2 where t2.a >= t1.a group by t2.a) from t1;
(select t2.a from t2 where t2.a >= t1.a group by t2.a)
NULL
NULL
9
drop table t1, t2;
#
# LP BUG#900375 Wrong result with derived_merge=ON, DISTINCT or GROUP BY, EXISTS
#
CREATE TABLE t1 ( a INT, b INT, KEY (b) );
INSERT INTO t1 VALUES
(100,10),(101,11),(102,12),(103,13),(104,14),
(105,15),(106,16),(107,17),(108,18),(109,19);
EXPLAIN
SELECT alias1.* FROM t1, (SELECT * FROM t1) AS alias1
WHERE EXISTS ( SELECT DISTINCT b FROM t1 WHERE b <= alias1.a ) ;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 index NULL b 5 NULL 10 Using index
1 PRIMARY t1 ALL NULL NULL NULL NULL 10 Using where; Using join buffer (flat, BNL join)
3 DEPENDENT SUBQUERY t1 index b b 5 NULL 10 Using where; Using index
SELECT alias1.* FROM t1, (SELECT * FROM t1) AS alias1
WHERE EXISTS ( SELECT DISTINCT b FROM t1 WHERE b <= alias1.a ) ;
a b
100 10
100 10
100 10
100 10
100 10
100 10
100 10
100 10
100 10
100 10
101 11
101 11
101 11
101 11
101 11
101 11
101 11
101 11
101 11
101 11
102 12
102 12
102 12
102 12
102 12
102 12
102 12
102 12
102 12
102 12
103 13
103 13
103 13
103 13
103 13
103 13
103 13
103 13
103 13
103 13
104 14
104 14
104 14
104 14
104 14
104 14
104 14
104 14
104 14
104 14
105 15
105 15
105 15
105 15
105 15
105 15
105 15
105 15
105 15
105 15
106 16
106 16
106 16
106 16
106 16
106 16
106 16
106 16
106 16
106 16
107 17
107 17
107 17
107 17
107 17
107 17
107 17
107 17
107 17
107 17
108 18
108 18
108 18
108 18
108 18
108 18
108 18
108 18
108 18
108 18
109 19
109 19
109 19
109 19
109 19
109 19
109 19
109 19
109 19
109 19
EXPLAIN
SELECT alias1.* FROM t1, t1 AS alias1
WHERE EXISTS ( SELECT DISTINCT b FROM t1 WHERE b <= alias1.a ) ;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 index NULL b 5 NULL 10 Using index
1 PRIMARY alias1 ALL NULL NULL NULL NULL 10 Using where; Using join buffer (flat, BNL join)
2 DEPENDENT SUBQUERY t1 index b b 5 NULL 10 Using where; Using index
SELECT alias1.* FROM t1, t1 AS alias1
WHERE EXISTS ( SELECT DISTINCT b FROM t1 WHERE b <= alias1.a ) ;
a b
100 10
100 10
100 10
100 10
100 10
100 10
100 10
100 10
100 10
100 10
101 11
101 11
101 11
101 11
101 11
101 11
101 11
101 11
101 11
101 11
102 12
102 12
102 12
102 12
102 12
102 12
102 12
102 12
102 12
102 12
103 13
103 13
103 13
103 13
103 13
103 13
103 13
103 13
103 13
103 13
104 14
104 14
104 14
104 14
104 14
104 14
104 14
104 14
104 14
104 14
105 15
105 15
105 15
105 15
105 15
105 15
105 15
105 15
105 15
105 15
106 16
106 16
106 16
106 16
106 16
106 16
106 16
106 16
106 16
106 16
107 17
107 17
107 17
107 17
107 17
107 17
107 17
107 17
107 17
107 17
108 18
108 18
108 18
108 18
108 18
108 18
108 18
108 18
108 18
108 18
109 19
109 19
109 19
109 19
109 19
109 19
109 19
109 19
109 19
109 19
drop table t1;
End of 5.1 tests
#
# WL#3220 (Loose index scan for COUNT DISTINCT)

3
mysql-test/r/index_merge_innodb.result
View File

@ -686,6 +686,8 @@ INSERT INTO t1(a,b) SELECT a,b FROM t1;
INSERT INTO t1(a,b) SELECT a,b FROM t1;
INSERT INTO t1 VALUES (1000000, 0, 0);
SET SESSION sort_buffer_size = 1024*36;
set @tmp_optimizer_switch=@@optimizer_switch;
set optimizer_switch='derived_merge=off,derived_with_keys=off';
EXPLAIN
SELECT COUNT(*) FROM
(SELECT * FROM t1 FORCE INDEX(primary,idx)
@ -711,6 +713,7 @@ WHERE a BETWEEN 2 AND 7 OR pk=1000000) AS t;
COUNT(*)
6145
DROP TABLE t1;
set optimizer_switch=@tmp_optimizer_switch;
#
# Testcase Backport: BUG#48093: 6.0 Server not processing equivalent IN clauses properly
# with Innodb tables

3
mysql-test/r/index_merge_myisam.result
View File

@ -285,10 +285,13 @@ id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 index_merge i1,i2 i1,i2 4,4 NULL 2 Using union(i1,i2); Using where
2 UNION t1 index_merge i1,i3 i1,i3 4,4 NULL 5 Using sort_union(i1,i3); Using where
NULL UNION RESULT <union1,2> ALL NULL NULL NULL NULL NULL
set @tmp_optimizer_switch=@@optimizer_switch;
set optimizer_switch='derived_merge=off,derived_with_keys=off';
explain select * from (select * from t1 where key1 = 3 or key2 =3) as Z where key8 >5;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 Using where
2 DERIVED t1 index_merge i1,i2 i1,i2 4,4 NULL 2 Using union(i1,i2); Using where
set optimizer_switch=@tmp_optimizer_switch;
create table t3 like t0;
insert into t3 select * from t0;
alter table t3 add key9 int not null, add index i9(key9);

3
mysql-test/r/information_schema.result
View File

@ -1271,6 +1271,8 @@ COLUMN_NAME MD5(COLUMN_DEFAULT) LENGTH(COLUMN_DEFAULT) COLUMN_DEFAULT=get_value(
fld1 7cf7a6782be951a1f2464a350da926a5 65532 1
DROP TABLE bug23037;
DROP FUNCTION get_value;
set @tmp_optimizer_switch=@@optimizer_switch;
set optimizer_switch='derived_merge=off,derived_with_keys=off';
create view v1 as
select table_schema as object_schema,
table_name as object_name,
@ -1284,6 +1286,7 @@ explain select * from (select table_name from information_schema.tables) as a;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2
2 DERIVED tables ALL NULL NULL NULL NULL NULL Skip_open_table; Scanned all databases
set optimizer_switch=@tmp_optimizer_switch;
drop view v1;
create table t1 (f1 int(11));
create table t2 (f1 int(11), f2 int(11));

109
mysql-test/r/innodb_icp.result
View File

@ -412,6 +412,7 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 range PRIMARY,k1 k1 5 NULL 3 Using where; Using index
DROP TABLE t1;
#
#
# Bug#59259 "Incorrect rows returned for a correlated subquery
# when ICP is on"
#
@ -430,8 +431,8 @@ SELECT * FROM t1
WHERE pk IN (SELECT it.pk FROM t2 JOIN t2 AS it ON it.i=it.i WHERE it.pk-t1.i<10);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 Using where
2 DEPENDENT SUBQUERY t2 index NULL PRIMARY 4 NULL 3 Using index
2 DEPENDENT SUBQUERY it eq_ref PRIMARY PRIMARY 4 func 1 Using index condition
2 DEPENDENT SUBQUERY t2 index NULL PRIMARY 4 NULL 3 Using where; Using index; Using join buffer (flat, BNL join)
SELECT * FROM t1
WHERE pk IN (SELECT it.pk FROM t2 JOIN t2 AS it ON it.i=it.i WHERE it.pk-t1.i<10);
pk i
@ -701,5 +702,111 @@ SET SESSION optimizer_switch='index_condition_pushdown=on';
SELECT a FROM t1 WHERE c IS NULL AND d IS NOT NULL GROUP BY 1;
a
DROP TABLE t1;
#
# Bug#904832: an attempt to perform an index condition pushdown
# of a condition containing a subquery
#
CREATE TABLE t1 (
a INT PRIMARY KEY NOT NULL AUTO_INCREMENT,
b INT, c INT, d DATE NOT NULL, e VARCHAR(1),
KEY (c), KEY (d), KEY k2(b), KEY k3(b), KEY k4(b)
);
INSERT INTO t1 (b,c,d,e) VALUES
(6,5,'2006-05-25','y'),(1,5,'2008-01-23','t'),
(6,5,'2007-06-18','d'),(4,5,'1900-01-01','r'),
(8,5,'1900-01-01','m'),(4,5,'2006-03-09','b'),
(4,5,'2001-06-05','x'),(1,5,'2008-01-23','t'),
(6,5,'2007-06-18','d'),(4,5,'1900-01-01','r'),
(8,5,'1900-01-01','m'),(4,5,'2006-03-09','b'),
(4,5,'2001-06-05','x'),(1,5,'2008-01-23','t'),
(4,5,'1900-01-01','r'),(8,5,'1900-01-01','m'),
(4,5,'2006-03-09','b'),(4,5,'2001-06-05','x'),
(1,5,'2008-01-23','t'),(6,5,'2007-06-18','d'),
(4,5,'1900-01-01','r'),(8,5,'1900-01-01','m'),
(4,5,'2006-03-09','b'),(4,5,'2001-06-05','f'),
(4,5,'2001-06-05','x'),(8,5,'1900-01-01','m'),
(4,5,'2006-03-09','b'),(4,5,'2001-06-05','x'),
(1,5,'2008-01-23','t'),(6,5,'2007-06-18','d'),
(4,5,'1900-01-01','r'),(8,5,'1900-01-01','m'),
(4,5,'2006-03-09','b'),(6,5,'2007-06-18','d'),
(6,5,'2007-06-18','d'),(4,5,'1900-01-01','r'),
(8,5,'1900-01-01','m'),(4,5,'2006-03-09','b'),
(6,5,'2007-06-18','d'),(4,5,'1900-01-01','r'),
(8,5,'1900-01-01','m'),(4,5,'2006-03-09','b'),
(4,5,'2006-03-09','b'),(4,5,'2001-06-05','x'),
(1,5,'2008-01-23','t'),(6,5,'2007-06-18','d'),
(4,5,'1900-01-01','r'),(8,5,'1900-01-01','m'),
(4,5,'2006-03-09','b'),(4,5,'2001-06-05','x'),
(4,5,'2001-06-05','x'),(1,5,'2008-01-23','t'),
(6,5,'2007-06-18','d'),(4,5,'1900-01-01','r'),
(8,5,'1900-01-01','m'),(4,5,'2006-03-09','b'),
(4,5,'2001-06-05','x'),(1,5,'2008-01-23','t'),
(6,5,'2007-06-18','d'),(4,1,'1900-01-01','r'),
(8,8,'1900-01-01','m'),(4,1,'2006-03-09','b'),
(4,1,'2001-06-05','x'),(7,1,'2006-05-28','g');
CREATE TABLE t2 (
f INT PRIMARY KEY NOT NULL AUTO_INCREMENT,
g INT,
h VARCHAR(1),
KEY (g)
);
INSERT INTO t2 (g,h) VALUES
(3,'e'),(1,'u'),(4,'v'),(9,'u'),(6,'i'),(1,'x'),
(5,'l'),(8,'y'),(0,'p'),(0,'f'),(0,'p'),(7,'d'),
(7,'f'),(5,'j'),(3,'e'),(1,'u'),(4,'v'),(9,'u'),
(6,'i'),(1,'x'),(5,'l'),(8,'y'),(0,'p'),(0,'f'),
(0,'p'),(0,'f'),(0,'p'),(7,'d'),(7,'f'),(5,'j'),
(3,'e'),(1,'u'),(4,'v'),(9,'u'),(6,'i'),(1,'x'),
(7,'d'),(7,'f'),(5,'j'),(3,'e'),(1,'u'),(4,'v'),
(9,'u'),(6,'i'),(1,'x'),(5,'l'),(8,'y'),(0,'p'),
(0,'f'),(0,'p'),(7,'d'),(7,'f'),(5,'j'),(3,'e'),
(1,'u'),(4,'v'),(9,'u'),(6,'i'),(1,'x'),(5,'l'),
(6,'q'),(2,'n'),(4,'r'),(4,'b'),(8,'y'),(0,'p'),
(0,'f'),(0,'p'),(7,'d'),(7,'f'),(5,'j'),(3,'e'),
(1,'u'),(4,'v'),(9,'u'),(6,'i'),(1,'x'),(5,'l'),
(8,'y'),(0,'p'),(0,'f'),(0,'p'),(7,'d'),(7,'f'),
(5,'j'),(3,'e'),(1,'u'),(4,'v'),(9,'u'),(6,'i'),
(1,'x'),(5,'l'),(8,'y'),(0,'p'),(0,'f'),(0,'p'),
(0,'f'),(0,'p'),(7,'d'),(7,'f'),(5,'j'),(3,'e'),
(1,'u'),(4,'v'),(9,'u'),(6,'i'),(1,'x'),(7,'d'),
(7,'f'),(5,'j'),(3,'e'),(1,'u'),(0,'f'),(0,'p'),
(7,'d'),(7,'f'),(5,'j'),(3,'e'),(1,'u'),(4,'v'),
(9,'u'),(6,'i'),(1,'x'),(5,'l'),(8,'y'),(0,'p'),
(0,'f'),(0,'p'),(0,'f'),(0,'p'),(7,'d'),(7,'f'),
(5,'j'),(3,'e'),(1,'u'),(4,'v'),(9,'u'),(6,'i'),
(1,'x'),(7,'d'),(7,'f'),(5,'j'),(3,'e'),(1,'u'),
(4,'v'),(9,'u'),(6,'i'),(1,'x'),(5,'l'),(8,'y'),
(0,'p'),(0,'f'),(0,'p'),(7,'d'),(7,'f'),(5,'j'),
(3,'e'),(1,'u'),(4,'v'),(9,'u'),(6,'i'),(1,'x'),
(5,'l'),(6,'q'),(2,'n'),(4,'r'),(4,'b'),(8,'y'),
(0,'p'),(0,'f'),(0,'p'),(7,'d'),(7,'f'),(5,'j'),
(3,'e'),(1,'u'),(4,'v'),(9,'u'),(6,'i'),(1,'x'),
(7,'f'),(5,'j'),(3,'e'),(1,'u'),(4,'v'),(9,'u');
SET @save_optimize_switch=@@optimizer_switch;
SET optimizer_switch='materialization=on';
EXPLAIN
SELECT COUNT(*) FROM t1 AS t, t2
WHERE c = g
AND (EXISTS (SELECT * FROM t1, t2 WHERE a = f AND h <= t.e AND a > t.b)
OR a = 0 AND h < 'z' );
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t ALL PRIMARY,c NULL NULL NULL 64 Using where
1 PRIMARY t2 ref g g 5 test.t.c 9 Using where
2 DEPENDENT SUBQUERY t1 index PRIMARY d 3 NULL 64 Using where; Using index
2 DEPENDENT SUBQUERY t2 eq_ref PRIMARY PRIMARY 4 test.t1.a 1 Using index condition; Using where
SELECT COUNT(*) FROM t1 AS t, t2
WHERE c = g
AND (EXISTS (SELECT * FROM t1, t2 WHERE a = f AND h <= t.e AND a > t.b)
OR a = 0 AND h < 'z' );
COUNT(*)
1478
SELECT COUNT(*) FROM t1 AS t, t2
WHERE c = g
AND (EXISTS (SELECT * FROM t1, t2 WHERE a = f AND h <= t.e AND a > t.b)
OR a = 0 AND h < 'z' );
COUNT(*)
1478
SET optimizer_switch=@save_optimizer_switch;
DROP TABLE t1,t2;
set optimizer_switch=@innodb_icp_tmp;
set storage_engine= @save_storage_engine;

2
mysql-test/r/insert_update.result
View File

@ -379,7 +379,6 @@ INSERT IGNORE INTO t1 (id,c1) SELECT 1,NULL
ON DUPLICATE KEY UPDATE c1=NULL, cnt=cnt+1;
Warnings:
Warning 1048 Column 'c1' cannot be null
Error 1048 Column 'c1' cannot be null
SELECT * FROM t1;
id c1 cnt
1 0 2
@ -387,7 +386,6 @@ INSERT IGNORE INTO t1 (id,c1) SELECT * FROM t2
ON DUPLICATE KEY UPDATE c1=NULL, cnt=cnt+1;
Warnings:
Warning 1048 Column 'c1' cannot be null
Error 1048 Column 'c1' cannot be null
SELECT * FROM t1;
id c1 cnt
1 0 3

5
mysql-test/r/join.result
View File

@ -1,5 +1,7 @@
drop table if exists t1,t2,t3;
drop view if exists v1,v2;
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='outer_join_with_cache=off';
CREATE TABLE t1 (S1 INT);
CREATE TABLE t2 (S1 INT);
INSERT INTO t1 VALUES (1);
@ -896,7 +898,7 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE B eq_ref PRIMARY PRIMARY 4 test.A.b 1
show status like '%cost%';
Variable_name Value
Last_query_cost 24.016090
Last_query_cost 28.016090
select '^^: The above should be ~= 20 + cost(select * from t1). Value less than 20 is an error' Z;
Z
^^: The above should be ~= 20 + cost(select * from t1). Value less than 20 is an error
@ -1349,3 +1351,4 @@ select t2.i from t1 left join t2 on t2.i = t1.i where t1.i = '1:1:1';
i
01:01:01
drop table t1,t2;
SET optimizer_switch=@save_optimizer_switch;

246
mysql-test/r/join_cache.result
View File

@ -40,6 +40,7 @@ COUNT(*)
show variables like 'join_buffer_size';
Variable_name Value
join_buffer_size 131072
set join_cache_level=1;
show variables like 'join_cache_level';
Variable_name Value
join_cache_level 1
@ -313,8 +314,8 @@ CountryLanguage.Percentage > 50 AND
LENGTH(Language) < LENGTH(City.Name) - 2;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE Country ALL NULL NULL NULL NULL 239 Using where
1 SIMPLE City hash_ALL NULL #hash#$hj 3 world.Country.Code 4079 Using where; Using join buffer (flat, BNLH join)
1 SIMPLE CountryLanguage hash_ALL NULL #hash#$hj 3 world.Country.Code 984 Using where; Using join buffer (incremental, BNLH join)
1 SIMPLE CountryLanguage hash_ALL NULL #hash#$hj 3 world.Country.Code 984 Using where; Using join buffer (flat, BNLH join)
1 SIMPLE City hash_ALL NULL #hash#$hj 3 world.Country.Code 4079 Using where; Using join buffer (incremental, BNLH join)
SELECT City.Name, Country.Name, CountryLanguage.Language
FROM City,Country,CountryLanguage
WHERE City.Country=Country.Code AND
@ -453,7 +454,7 @@ Côte d?Ivoire 14786000 NULL NULL
Czech Republic 10278100 NULL NULL
DROP INDEX City_Population ON City;
DROP INDEX City_Name ON City;
set join_cache_level=default;
set join_cache_level=1;
set join_buffer_size=256;
show variables like 'join_buffer_size';
Variable_name Value
@ -776,7 +777,7 @@ Variable_name Value
join_buffer_size 131072
show variables like 'join_cache_level';
Variable_name Value
join_cache_level 1
join_cache_level 2
DROP DATABASE world;
CREATE DATABASE world;
use world;
@ -2690,7 +2691,7 @@ Variable_name Value
join_buffer_size 131072
show variables like 'join_cache_level';
Variable_name Value
join_cache_level 1
join_cache_level 2
set join_cache_level=1;
SELECT City.Name, Country.Name FROM City,Country
WHERE City.Country=Country.Code AND City.Population > 3000000;
@ -3878,6 +3879,7 @@ create table t2 (a int, b int);
insert into t2 values (1,1),(2,2);
create table t3 (a int, b int);
insert into t3 values (1,1),(2,2);
set join_cache_level=1;
explain select t1.* from t1,t2,t3;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 2
@ -3928,8 +3930,8 @@ EXPLAIN
SELECT t3.a FROM t1,t2,t3 WHERE t1.a = t3.a AND t1.b = t3.b;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 2 Using where
1 SIMPLE t2 ALL NULL NULL NULL NULL 5 Using join buffer (flat, BNL join)
1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.a 1 Using where; Using join buffer (incremental, BKA join); Key-ordered Rowid-ordered scan
1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.a 1 Using where; Using join buffer (flat, BKA join); Key-ordered Rowid-ordered scan
1 SIMPLE t2 ALL NULL NULL NULL NULL 5 Using join buffer (incremental, BNL join)
SELECT t3.a FROM t1,t2,t3 WHERE t1.a = t3.a AND t1.b = t3.b;
a
27
@ -4401,18 +4403,13 @@ INSERT INTO t2 VALUES
(1, 12, 102), (8, 81, 801), (7, 70, 700), (12, 120, 1200),
(8, 82, 802), (1, 13, 103), (1, 14, 104), (3, 31, 301),
(1, 15, 105), (8, 83, 803), (7, 71, 701);
INSERT INTO t2 VALUES
(108, 80, 800), (101, 10, 100), (101, 11, 101), (103, 30, 300),
(101, 12, 102), (108, 81, 801), (107, 70, 700), (1012, 120, 1200),
(108, 82, 802), (101, 13, 103), (101, 14, 104), (103, 31, 301),
(101, 15, 105), (108, 83, 803), (107, 71, 701);
SET SESSION join_cache_level = 4;
SET SESSION join_buffer_size = 256;
EXPLAIN
SELECT t1.a, t2.c FROM t1,t2 WHERE t1.a=t2.a AND t2.b=99;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 36
1 SIMPLE t2 ALL idx NULL NULL NULL 30 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t2 ALL idx NULL NULL NULL 15 Using where
1 SIMPLE t1 hash_ALL NULL #hash#$hj 5 test.t2.a 36 Using where; Using join buffer (flat, BNLH join)
SELECT t1.a, t2.c FROM t1,t2 WHERE t1.a=t2.a AND t2.b=99;
a c
SET SESSION join_cache_level = DEFAULT;
@ -5140,8 +5137,8 @@ EXPLAIN
SELECT * FROM (SELECT DISTINCT * FROM t1) t
WHERE t.a IN (SELECT t2.a FROM t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <derived2> ALL key0 NULL NULL NULL 3 Start temporary
1 PRIMARY t2 ALL NULL NULL NULL NULL 4 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY <derived2> ALL key0 NULL NULL NULL 3
1 PRIMARY t2 ALL NULL NULL NULL NULL 4 Using where; Start temporary; End temporary; Using join buffer (flat, BNL join)
2 DERIVED t1 ALL NULL NULL NULL NULL 3 Using temporary
SELECT * FROM (SELECT DISTINCT * FROM t1) t
WHERE t.a IN (SELECT t2.a FROM t2);
@ -5173,8 +5170,8 @@ SET SESSION join_cache_level=3;
EXPLAIN
SELECT * FROM t1 WHERE (t1.b) IN (SELECT c FROM t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 Using where; Start temporary
1 PRIMARY t2 hash_index c #hash#c:c 5:5 test.t1.b 8 End temporary; Using join buffer (flat, BNLH join)
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 Using where
1 PRIMARY t2 hash_index c #hash#c:c 5:5 test.t1.b 8 Start temporary; End temporary; Using join buffer (flat, BNLH join)
SELECT * FROM t1 WHERE (t1.b) IN (SELECT c FROM t2);
a b
3914 17
@ -5182,4 +5179,217 @@ a b
SET SESSION join_cache_level = DEFAULT;
SET optimizer_switch=@tmp887479_optimizer_switch;
DROP TABLE t1,t2;
#
# Bug #899777: join_cache_level=4 + semijoin=on
#
CREATE TABLE t1 (a int, b int, c int, UNIQUE INDEX idx (a));
INSERT INTO t1 VALUES (1,8,6), (2,2,8);
CREATE TABLE t2 (a int, b int, c int, UNIQUE INDEX idx (a));
INSERT INTO t2 VALUES (1,8,6), (2,2,8);
CREATE TABLE t3 (a int, b int, c int, UNIQUE INDEX idx (a));
INSERT INTO t3 VALUES (1,8,6), (2,2,8);
CREATE TABLE t4 (a int, b int, c int, UNIQUE INDEX idx (a));
INSERT INTO t4 VALUES (1,8,6), (2,2,8);
SET @tmp_optimizer_switch=@@optimizer_switch;
SET SESSION optimizer_switch='semijoin=on';
SET SESSION optimizer_switch='semijoin_with_cache=on';
SET SESSION join_cache_level=1;
EXPLAIN
SELECT t1.* FROM t1,t2
WHERE (t1.b,t2.b) IN (SELECT t3.b,t4.b FROM t3,t4 WHERE t4.c=t3.b)
AND t1.a = 1;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 const idx idx 5 const 1
1 PRIMARY t2 ALL NULL NULL NULL NULL 2
1 PRIMARY t3 ALL NULL NULL NULL NULL 2 Using where; Start temporary; Using join buffer (flat, BNL join)
1 PRIMARY t4 ALL NULL NULL NULL NULL 2 Using where; End temporary; Using join buffer (flat, BNL join)
SELECT t1.* FROM t1,t2
WHERE (t1.b,t2.b) IN (SELECT t3.b,t4.b FROM t3,t4 WHERE t4.c=t3.b)
AND t1.a = 1;
a b c
1 8 6
SET SESSION join_cache_level=4;
EXPLAIN
SELECT t1.* FROM t1,t2
WHERE (t1.b,t2.b) IN (SELECT t3.b,t4.b FROM t3,t4 WHERE t4.c=t3.b)
AND t1.a = 1;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 const idx idx 5 const 1
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where
1 PRIMARY t3 hash_ALL NULL #hash#$hj 5 const 2 Using where; Start temporary; Using join buffer (flat, BNLH join)
1 PRIMARY t4 hash_ALL NULL #hash#$hj 10 const,test.t2.b 2 Using where; End temporary; Using join buffer (incremental, BNLH join)
SELECT t1.* FROM t1,t2
WHERE (t1.b,t2.b) IN (SELECT t3.b,t4.b FROM t3,t4 WHERE t4.c=t3.b)
AND t1.a = 1;
a b c
1 8 6
SET SESSION join_cache_level = DEFAULT;
SET optimizer_switch=@tmp_optimizer_switch;
DROP TABLE t1,t2,t3,t4;
#
# Bug #899509: an attempt to use hash join with join_cache_level=0
#
CREATE TABLE t1 (a int);
INSERT INTO t1 VALUES (8), (7);
CREATE TABLE t2 (a int);
INSERT INTO t2 VALUES (8), (7);
CREATE TABLE t3 (a int);
INSERT INTO t3 VALUES (8), (7);
SET @tmp_optimizer_switch=@@optimizer_switch;
set optimizer_switch=default;
set @@optimizer_switch='semijoin_with_cache=off';
set @@optimizer_switch='outer_join_with_cache=off';
SET optimizer_switch='derived_merge=off,derived_with_keys=off';
SET join_cache_level=0;
EXPLAIN
SELECT * FROM (SELECT t1.* FROM t1, t2) t WHERE t.a IN (SELECT * FROM t3);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <subquery3> ALL distinct_key NULL NULL NULL 2
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 4 Using where
3 MATERIALIZED t3 ALL NULL NULL NULL NULL 2
2 DERIVED t1 ALL NULL NULL NULL NULL 2
2 DERIVED t2 ALL NULL NULL NULL NULL 2
SELECT * FROM (SELECT t1.* FROM t1, t2) t WHERE t.a IN (SELECT * FROM t3);
a
8
8
7
7
SELECT * FROM ( SELECT ta.* FROM t1 AS ta, t1 ) tb WHERE a IN ( SELECT * FROM t1 );
a
8
8
7
7
SET SESSION join_cache_level = DEFAULT;
SET optimizer_switch=@tmp_optimizer_switch;
DROP TABLE t1,t2,t3;
#
# Bug #900469: semijoin + BNLH + ORDER BY
#
CREATE TABLE t1 (a int, b int);
INSERT INTO t1 VALUES (8,10);
CREATE TABLE t2 (c int, d int);
INSERT INTO t2 VALUES (8,10);
INSERT INTO t2 VALUES (9,11);
CREATE TABLE t3 (c int, d int);
INSERT INTO t3 VALUES (8,10);
INSERT INTO t3 VALUES (9,11);
SET @tmp_optimizer_switch=@@optimizer_switch;
set @@optimizer_switch='semijoin_with_cache=on';
SET join_cache_level=1;
EXPLAIN
SELECT * FROM t1,t2 WHERE b IN (SELECT d FROM t3 WHERE c <= t2.c) ORDER BY a,d;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1 Using temporary; Using filesort
1 PRIMARY t2 ALL NULL NULL NULL NULL 2
1 PRIMARY t3 ALL NULL NULL NULL NULL 2 Using where; Start temporary; End temporary; Using join buffer (flat, BNL join)
SELECT * FROM t1,t2 WHERE b IN (SELECT d FROM t3 WHERE c <= t2.c) ORDER BY a,d;
a b c d
8 10 8 10
8 10 9 11
SET join_cache_level=3;
EXPLAIN
SELECT * FROM t1,t2 WHERE b IN (SELECT d FROM t3 WHERE c <= t2.c);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1
1 PRIMARY t2 ALL NULL NULL NULL NULL 2
1 PRIMARY t3 hash_ALL NULL #hash#$hj 5 const 2 Using where; Start temporary; End temporary; Using join buffer (flat, BNLH join)
SELECT * FROM t1,t2 WHERE b IN (SELECT d FROM t3 WHERE c <= t2.c);
a b c d
8 10 8 10
8 10 9 11
SET join_cache_level=3;
EXPLAIN
SELECT * FROM t1,t2 WHERE b IN (SELECT d FROM t3 WHERE c <= t2.c) ORDER BY a,d;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1 Using temporary; Using filesort
1 PRIMARY t2 ALL NULL NULL NULL NULL 2
1 PRIMARY t3 hash_ALL NULL #hash#$hj 5 const 2 Using where; Start temporary; End temporary; Using join buffer (flat, BNLH join)
SELECT * FROM t1,t2 WHERE b IN (SELECT d FROM t3 WHERE c <= t2.c) ORDER BY a,d;
a b c d
8 10 8 10
8 10 9 11
SET SESSION join_cache_level = DEFAULT;
SET optimizer_switch=@tmp_optimizer_switch;
DROP TABLE t1,t2,t3;
#
# Bug #901478: semijoin + ORDER BY + join_cache_level=4|6
#
CREATE TABLE t1 (a char(1));
INSERT INTO t1 VALUES ('x');
CREATE TABLE t2 (a int, b int, c int, KEY(a), KEY(b), KEY(c));
INSERT INTO t2 VALUES
(9,1,0), (7,2,8), (2,3,5), (4,2,9), (8,3,8), (3,4,1), (5,5,4);
CREATE TABLE t3 (a CHAR(1));
INSERT INTO t3 VALUES ('x');
CREATE TABLE t4 (a int, b int, c int, KEY(b), KEY(c));
INSERT INTO t4 VALUES
(9,1,0), (7,2,8), (2,3,5), (4,2,9), (8,3,8), (3,4,1), (5,5,4);
INSERT INTO t4 VALUES
(19,11,10), (17,12,18), (12,13,15), (14,12,19),
(18,13,18), (13,14,11), (15,15,14);
SET @tmp_optimizer_switch=@@optimizer_switch;
SET @@optimizer_switch='semijoin=on';
SET @@optimizer_switch='firstmatch=off';
SET @@optimizer_switch='mrr=off';
SET @@optimizer_switch='semijoin_with_cache=off';
set join_cache_level=1;
EXPLAIN
SELECT * FROM t1,t2
WHERE t2.c IN (SELECT c FROM t3,t4 WHERE t4.a < 10) AND
t2.a BETWEEN 4 and 5
ORDER BY t2.b;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1 Using filesort
1 PRIMARY t3 system NULL NULL NULL NULL 1
1 PRIMARY t2 range a,c a 5 NULL 1 Using index condition; Using where
1 PRIMARY t4 ref c c 5 test.t2.c 2 Using where; Start temporary; End temporary
SELECT * FROM t1,t2
WHERE t2.c IN (SELECT c FROM t3,t4 WHERE t4.a < 10) AND
t2.a BETWEEN 4 and 5
ORDER BY t2.b;
a a b c
x 4 2 9
x 5 5 4
set join_cache_level=4;
EXPLAIN
SELECT * FROM t1,t2
WHERE t2.c IN (SELECT c FROM t3,t4 WHERE t4.a < 10) AND
t2.a BETWEEN 4 and 5
ORDER BY t2.b;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1 Using temporary; Using filesort
1 PRIMARY t3 system NULL NULL NULL NULL 1
1 PRIMARY t2 range a,c a 5 NULL 1 Using index condition; Using where
1 PRIMARY t4 ref c c 5 test.t2.c 2 Using where; Start temporary; End temporary
SELECT * FROM t1,t2
WHERE t2.c IN (SELECT c FROM t3,t4 WHERE t4.a < 10) AND
t2.a BETWEEN 4 and 5
ORDER BY t2.b;
a a b c
x 4 2 9
x 5 5 4
SET @@optimizer_switch='semijoin_with_cache=on';
set join_cache_level=6;
EXPLAIN
SELECT * FROM t1,t2
WHERE t2.c IN (SELECT c FROM t3,t4 WHERE t4.a < 10) AND
t2.a BETWEEN 4 and 5
ORDER BY t2.b;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1 Using temporary; Using filesort
1 PRIMARY t3 system NULL NULL NULL NULL 1
1 PRIMARY t2 range a,c a 5 NULL 1 Using index condition; Using where
1 PRIMARY t4 ref c c 5 test.t2.c 2 Using where; Start temporary; End temporary
SELECT * FROM t1,t2
WHERE t2.c IN (SELECT c FROM t3,t4 WHERE t4.a < 10) AND
t2.a BETWEEN 4 and 5
ORDER BY t2.b;
a a b c
x 4 2 9
x 5 5 4
SET join_cache_level = DEFAULT;
SET optimizer_switch=@tmp_optimizer_switch;
DROP TABLE t1,t2,t3,t4;
set @@optimizer_switch=@save_optimizer_switch;

4
mysql-test/r/join_nested.result
View File

@ -1,4 +1,7 @@
DROP TABLE IF EXISTS t0,t1,t2,t3,t4,t5,t6,t7,t8,t9;
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch=ifnull(@optimizer_switch_for_join_nested_test,'outer_join_with_cache=off');
set join_cache_level=1;
CREATE TABLE t0 (a int, b int, c int);
CREATE TABLE t1 (a int, b int, c int);
CREATE TABLE t2 (a int, b int, c int);
@ -1842,4 +1845,5 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
Warnings:
Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t2`.`a` AS `a`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`b` AS `b` from `test`.`t1` left join (`test`.`t2` left join `test`.`t3` on(((`test`.`t2`.`a` = `test`.`t1`.`a`) and (`test`.`t3`.`b` = `test`.`t1`.`a`))) left join `test`.`t4` on((`test`.`t4`.`b` = `test`.`t3`.`a`))) on((`test`.`t2`.`a` = `test`.`t1`.`a`)) where isnull(`test`.`t3`.`a`)
DROP TABLE t1,t2,t3,t4;
SET optimizer_switch=@save_optimizer_switch;
End of 5.0 tests

10
mysql-test/r/join_nested_jcl6.result
View File

@ -7,7 +7,12 @@ set join_cache_level=6;
show variables like 'join_cache_level';
Variable_name Value
join_cache_level 6
set @optimizer_switch_for_join_nested_test=@@optimizer_switch;
set @join_cache_level_for_join_nested_test=@@join_cache_level;
DROP TABLE IF EXISTS t0,t1,t2,t3,t4,t5,t6,t7,t8,t9;
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch=ifnull(@optimizer_switch_for_join_nested_test,'outer_join_with_cache=off');
set join_cache_level=@join_cache_level_for_join_nested_test;
CREATE TABLE t0 (a int, b int, c int);
CREATE TABLE t1 (a int, b int, c int);
CREATE TABLE t2 (a int, b int, c int);
@ -1851,6 +1856,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
Warnings:
Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t2`.`a` AS `a`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`b` AS `b` from `test`.`t1` left join (`test`.`t2` left join `test`.`t3` on(((`test`.`t2`.`a` = `test`.`t1`.`a`) and (`test`.`t3`.`b` = `test`.`t1`.`a`))) left join `test`.`t4` on(((`test`.`t4`.`b` = `test`.`t3`.`a`) and (`test`.`t3`.`a` is not null)))) on((`test`.`t2`.`a` = `test`.`t1`.`a`)) where isnull(`test`.`t3`.`a`)
DROP TABLE t1,t2,t3,t4;
SET optimizer_switch=@save_optimizer_switch;
End of 5.0 tests
CREATE TABLE t5 (a int, b int, c int, PRIMARY KEY(a), KEY b_i (b));
CREATE TABLE t6 (a int, b int, c int, PRIMARY KEY(a), KEY b_i (b));
@ -1960,5 +1966,7 @@ DROP TABLE t5,t6,t7,t8;
set join_cache_level=default;
show variables like 'join_cache_level';
Variable_name Value
join_cache_level 1
join_cache_level 2
set @@optimizer_switch=@save_optimizer_switch_jcl6;
set @optimizer_switch_for_join_nested_test=NULL;
set @join_cache_level_for_join_nested_test=NULL;

4
mysql-test/r/join_outer.result
View File

@ -1,4 +1,7 @@
drop table if exists t0,t1,t2,t3,t4,t5;
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch=ifnull(@optimizer_switch_for_join_outer_test,'outer_join_with_cache=off');
set join_cache_level=1;
CREATE TABLE t1 (
grp int(11) default NULL,
a bigint(20) unsigned default NULL,
@ -1899,3 +1902,4 @@ b b a b
DEALLOCATE PREPARE stmt;
SET SESSION join_cache_level=default;
DROP TABLE t1,t2,t3;
SET optimizer_switch=@save_optimizer_switch;

10
mysql-test/r/join_outer_jcl6.result
View File

@ -7,7 +7,12 @@ set join_cache_level=6;
show variables like 'join_cache_level';
Variable_name Value
join_cache_level 6
set @optimizer_switch_for_join_outer_test=@@optimizer_switch;
set @join_cache_level_for_join_outer_test=@@join_cache_level;
drop table if exists t0,t1,t2,t3,t4,t5;
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch=ifnull(@optimizer_switch_for_join_outer_test,'outer_join_with_cache=off');
set join_cache_level=@join_cache_level_for_join_outer_test;
CREATE TABLE t1 (
grp int(11) default NULL,
a bigint(20) unsigned default NULL,
@ -1908,8 +1913,11 @@ b b a b
DEALLOCATE PREPARE stmt;
SET SESSION join_cache_level=default;
DROP TABLE t1,t2,t3;
SET optimizer_switch=@save_optimizer_switch;
set join_cache_level=default;
show variables like 'join_cache_level';
Variable_name Value
join_cache_level 1
join_cache_level 2
set @@optimizer_switch=@save_optimizer_switch_jcl6;
set @optimizer_switch_for_join_outer_test=NULL;
set @join_cache_level_for_join_outer_test=NULL;

109
mysql-test/r/maria_icp.result
View File

@ -412,6 +412,7 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 range PRIMARY,k1 k1 5 NULL 4 Using where
DROP TABLE t1;
#
#
# Bug#59259 "Incorrect rows returned for a correlated subquery
# when ICP is on"
#
@ -436,8 +437,8 @@ SELECT * FROM t1
WHERE pk IN (SELECT it.pk FROM t2 JOIN t2 AS it ON it.i=it.i WHERE it.pk-t1.i<10);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 Using where
2 DEPENDENT SUBQUERY t2 index NULL PRIMARY 4 NULL 3 Using index
2 DEPENDENT SUBQUERY it eq_ref PRIMARY PRIMARY 4 func 1 Using index condition
2 DEPENDENT SUBQUERY t2 index NULL PRIMARY 4 NULL 3 Using where; Using index; Using join buffer (flat, BNL join)
SELECT * FROM t1
WHERE pk IN (SELECT it.pk FROM t2 JOIN t2 AS it ON it.i=it.i WHERE it.pk-t1.i<10);
pk i
@ -707,5 +708,111 @@ SET SESSION optimizer_switch='index_condition_pushdown=on';
SELECT a FROM t1 WHERE c IS NULL AND d IS NOT NULL GROUP BY 1;
a
DROP TABLE t1;
#
# Bug#904832: an attempt to perform an index condition pushdown
# of a condition containing a subquery
#
CREATE TABLE t1 (
a INT PRIMARY KEY NOT NULL AUTO_INCREMENT,
b INT, c INT, d DATE NOT NULL, e VARCHAR(1),
KEY (c), KEY (d), KEY k2(b), KEY k3(b), KEY k4(b)
);
INSERT INTO t1 (b,c,d,e) VALUES
(6,5,'2006-05-25','y'),(1,5,'2008-01-23','t'),
(6,5,'2007-06-18','d'),(4,5,'1900-01-01','r'),
(8,5,'1900-01-01','m'),(4,5,'2006-03-09','b'),
(4,5,'2001-06-05','x'),(1,5,'2008-01-23','t'),
(6,5,'2007-06-18','d'),(4,5,'1900-01-01','r'),
(8,5,'1900-01-01','m'),(4,5,'2006-03-09','b'),
(4,5,'2001-06-05','x'),(1,5,'2008-01-23','t'),
(4,5,'1900-01-01','r'),(8,5,'1900-01-01','m'),
(4,5,'2006-03-09','b'),(4,5,'2001-06-05','x'),
(1,5,'2008-01-23','t'),(6,5,'2007-06-18','d'),
(4,5,'1900-01-01','r'),(8,5,'1900-01-01','m'),
(4,5,'2006-03-09','b'),(4,5,'2001-06-05','f'),
(4,5,'2001-06-05','x'),(8,5,'1900-01-01','m'),
(4,5,'2006-03-09','b'),(4,5,'2001-06-05','x'),
(1,5,'2008-01-23','t'),(6,5,'2007-06-18','d'),
(4,5,'1900-01-01','r'),(8,5,'1900-01-01','m'),
(4,5,'2006-03-09','b'),(6,5,'2007-06-18','d'),
(6,5,'2007-06-18','d'),(4,5,'1900-01-01','r'),
(8,5,'1900-01-01','m'),(4,5,'2006-03-09','b'),
(6,5,'2007-06-18','d'),(4,5,'1900-01-01','r'),
(8,5,'1900-01-01','m'),(4,5,'2006-03-09','b'),
(4,5,'2006-03-09','b'),(4,5,'2001-06-05','x'),
(1,5,'2008-01-23','t'),(6,5,'2007-06-18','d'),
(4,5,'1900-01-01','r'),(8,5,'1900-01-01','m'),
(4,5,'2006-03-09','b'),(4,5,'2001-06-05','x'),
(4,5,'2001-06-05','x'),(1,5,'2008-01-23','t'),
(6,5,'2007-06-18','d'),(4,5,'1900-01-01','r'),
(8,5,'1900-01-01','m'),(4,5,'2006-03-09','b'),
(4,5,'2001-06-05','x'),(1,5,'2008-01-23','t'),
(6,5,'2007-06-18','d'),(4,1,'1900-01-01','r'),
(8,8,'1900-01-01','m'),(4,1,'2006-03-09','b'),
(4,1,'2001-06-05','x'),(7,1,'2006-05-28','g');
CREATE TABLE t2 (
f INT PRIMARY KEY NOT NULL AUTO_INCREMENT,
g INT,
h VARCHAR(1),
KEY (g)
);
INSERT INTO t2 (g,h) VALUES
(3,'e'),(1,'u'),(4,'v'),(9,'u'),(6,'i'),(1,'x'),
(5,'l'),(8,'y'),(0,'p'),(0,'f'),(0,'p'),(7,'d'),
(7,'f'),(5,'j'),(3,'e'),(1,'u'),(4,'v'),(9,'u'),
(6,'i'),(1,'x'),(5,'l'),(8,'y'),(0,'p'),(0,'f'),
(0,'p'),(0,'f'),(0,'p'),(7,'d'),(7,'f'),(5,'j'),
(3,'e'),(1,'u'),(4,'v'),(9,'u'),(6,'i'),(1,'x'),
(7,'d'),(7,'f'),(5,'j'),(3,'e'),(1,'u'),(4,'v'),
(9,'u'),(6,'i'),(1,'x'),(5,'l'),(8,'y'),(0,'p'),
(0,'f'),(0,'p'),(7,'d'),(7,'f'),(5,'j'),(3,'e'),
(1,'u'),(4,'v'),(9,'u'),(6,'i'),(1,'x'),(5,'l'),
(6,'q'),(2,'n'),(4,'r'),(4,'b'),(8,'y'),(0,'p'),
(0,'f'),(0,'p'),(7,'d'),(7,'f'),(5,'j'),(3,'e'),
(1,'u'),(4,'v'),(9,'u'),(6,'i'),(1,'x'),(5,'l'),
(8,'y'),(0,'p'),(0,'f'),(0,'p'),(7,'d'),(7,'f'),
(5,'j'),(3,'e'),(1,'u'),(4,'v'),(9,'u'),(6,'i'),
(1,'x'),(5,'l'),(8,'y'),(0,'p'),(0,'f'),(0,'p'),
(0,'f'),(0,'p'),(7,'d'),(7,'f'),(5,'j'),(3,'e'),
(1,'u'),(4,'v'),(9,'u'),(6,'i'),(1,'x'),(7,'d'),
(7,'f'),(5,'j'),(3,'e'),(1,'u'),(0,'f'),(0,'p'),
(7,'d'),(7,'f'),(5,'j'),(3,'e'),(1,'u'),(4,'v'),
(9,'u'),(6,'i'),(1,'x'),(5,'l'),(8,'y'),(0,'p'),
(0,'f'),(0,'p'),(0,'f'),(0,'p'),(7,'d'),(7,'f'),
(5,'j'),(3,'e'),(1,'u'),(4,'v'),(9,'u'),(6,'i'),
(1,'x'),(7,'d'),(7,'f'),(5,'j'),(3,'e'),(1,'u'),
(4,'v'),(9,'u'),(6,'i'),(1,'x'),(5,'l'),(8,'y'),
(0,'p'),(0,'f'),(0,'p'),(7,'d'),(7,'f'),(5,'j'),
(3,'e'),(1,'u'),(4,'v'),(9,'u'),(6,'i'),(1,'x'),
(5,'l'),(6,'q'),(2,'n'),(4,'r'),(4,'b'),(8,'y'),
(0,'p'),(0,'f'),(0,'p'),(7,'d'),(7,'f'),(5,'j'),
(3,'e'),(1,'u'),(4,'v'),(9,'u'),(6,'i'),(1,'x'),
(7,'f'),(5,'j'),(3,'e'),(1,'u'),(4,'v'),(9,'u');
SET @save_optimize_switch=@@optimizer_switch;
SET optimizer_switch='materialization=on';
EXPLAIN
SELECT COUNT(*) FROM t1 AS t, t2
WHERE c = g
AND (EXISTS (SELECT * FROM t1, t2 WHERE a = f AND h <= t.e AND a > t.b)
OR a = 0 AND h < 'z' );
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t ALL PRIMARY,c NULL NULL NULL 64 Using where
1 PRIMARY t2 ref g g 5 test.t.c 19 Using where
2 DEPENDENT SUBQUERY t1 index PRIMARY PRIMARY 4 NULL 64 Using where; Using index
2 DEPENDENT SUBQUERY t2 eq_ref PRIMARY PRIMARY 4 test.t1.a 1 Using index condition; Using where
SELECT COUNT(*) FROM t1 AS t, t2
WHERE c = g
AND (EXISTS (SELECT * FROM t1, t2 WHERE a = f AND h <= t.e AND a > t.b)
OR a = 0 AND h < 'z' );
COUNT(*)
1478
SELECT COUNT(*) FROM t1 AS t, t2
WHERE c = g
AND (EXISTS (SELECT * FROM t1, t2 WHERE a = f AND h <= t.e AND a > t.b)
OR a = 0 AND h < 'z' );
COUNT(*)
1478
SET optimizer_switch=@save_optimizer_switch;
DROP TABLE t1,t2;
set storage_engine= @save_storage_engine;
set optimizer_switch=@maria_icp_tmp;

3
mysql-test/r/maria_mrr.result
View File

@ -352,6 +352,8 @@ INSERT INTO t3 SELECT * FROM t1;
INSERT INTO t3 VALUES
(88, 442, 'y'), (99, 445, 'w'), (87, 442, 'z'), (98, 445, 'v'), (86, 442, 'x'),
(97, 445, 't'), (85, 442, 'b'), (96, 445, 'l'), (84, 442, 'a'), (95, 445, 'k');
set @save_join_cache_level=@@join_cache_level;
set join_cache_level=1;
SELECT COUNT(t1.v) FROM t1, t2 IGNORE INDEX (idx), t3 IGNORE INDEX (idx)
WHERE t3.v = t2.v AND t3.i < t2.i AND t3.pk > 0 AND t2.pk > 0;
COUNT(t1.v)
@ -374,6 +376,7 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index NULL idx 7 NULL 15 Using index
1 SIMPLE t2 ALL PRIMARY,idx NULL NULL NULL 16 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t3 ref PRIMARY,idx idx 3 test.t2.v 2 Using index condition; Using where
set join_cache_level=@save_join_cache_level;
DROP TABLE t1,t2,t3;
#
# BUG#671361: virtual int Mrr_ordered_index_reader::refill_buffer(): Assertion `!know_key_tuple_params

4
mysql-test/r/multi_update.result
View File

@ -665,8 +665,8 @@ UPDATE IGNORE
( SELECT ( SELECT COUNT(*) FROM t1 GROUP BY a, @v ) a FROM t2 ) x, t3
SET t3.a = 0;
Warnings:
Error 1242 Subquery returns more than 1 row
Error 1242 Subquery returns more than 1 row
Warning 1242 Subquery returns more than 1 row
Warning 1242 Subquery returns more than 1 row
DROP TABLE t1, t2, t3;
SET SESSION sql_safe_updates = DEFAULT;
#

24
mysql-test/r/myisam.result
View File

@ -2470,6 +2470,30 @@ CARDINALITY
DROP TABLE t1;
SET myisam_sort_buffer_size=@@global.myisam_sort_buffer_size;
SET myisam_repair_threads=@@global.myisam_repair_threads;
#
# BUG#11757032 - 49030: OPTIMIZE TABLE BREAKS MYISAM TABLE WHEN
# USING MYISAM_USE_MMAP ON WINDOWS
#
SET GLOBAL myisam_use_mmap=1;
CREATE TABLE t1(a INT);
INSERT INTO t1 VALUES(1),(2);
DELETE FROM t1 WHERE a=1;
FLUSH TABLE t1;
LOCK TABLE t1 WRITE;
OPTIMIZE TABLE t1;
Table Op Msg_type Msg_text
test.t1 optimize status OK
INSERT INTO t1 VALUES(3);
UNLOCK TABLES;
SELECT * FROM t1;
a
2
3
CHECK TABLE t1;
Table Op Msg_type Msg_text
test.t1 check status OK
DROP TABLE t1;
SET GLOBAL myisam_use_mmap=default;
End of 5.1 tests
#
# Bug#51327 MyISAM table is automatically repaired on ALTER

116
mysql-test/r/myisam_icp.result
View File

@ -410,6 +410,7 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 range PRIMARY,k1 k1 5 NULL 4 Using where
DROP TABLE t1;
#
#
# Bug#59259 "Incorrect rows returned for a correlated subquery
# when ICP is on"
#
@ -434,8 +435,8 @@ SELECT * FROM t1
WHERE pk IN (SELECT it.pk FROM t2 JOIN t2 AS it ON it.i=it.i WHERE it.pk-t1.i<10);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 Using where
2 DEPENDENT SUBQUERY t2 index NULL PRIMARY 4 NULL 3 Using index
2 DEPENDENT SUBQUERY it eq_ref PRIMARY PRIMARY 4 func 1 Using index condition
2 DEPENDENT SUBQUERY t2 index NULL PRIMARY 4 NULL 3 Using where; Using index; Using join buffer (flat, BNL join)
SELECT * FROM t1
WHERE pk IN (SELECT it.pk FROM t2 JOIN t2 AS it ON it.i=it.i WHERE it.pk-t1.i<10);
pk i
@ -705,6 +706,112 @@ SET SESSION optimizer_switch='index_condition_pushdown=on';
SELECT a FROM t1 WHERE c IS NULL AND d IS NOT NULL GROUP BY 1;
a
DROP TABLE t1;
#
# Bug#904832: an attempt to perform an index condition pushdown
# of a condition containing a subquery
#
CREATE TABLE t1 (
a INT PRIMARY KEY NOT NULL AUTO_INCREMENT,
b INT, c INT, d DATE NOT NULL, e VARCHAR(1),
KEY (c), KEY (d), KEY k2(b), KEY k3(b), KEY k4(b)
);
INSERT INTO t1 (b,c,d,e) VALUES
(6,5,'2006-05-25','y'),(1,5,'2008-01-23','t'),
(6,5,'2007-06-18','d'),(4,5,'1900-01-01','r'),
(8,5,'1900-01-01','m'),(4,5,'2006-03-09','b'),
(4,5,'2001-06-05','x'),(1,5,'2008-01-23','t'),
(6,5,'2007-06-18','d'),(4,5,'1900-01-01','r'),
(8,5,'1900-01-01','m'),(4,5,'2006-03-09','b'),
(4,5,'2001-06-05','x'),(1,5,'2008-01-23','t'),
(4,5,'1900-01-01','r'),(8,5,'1900-01-01','m'),
(4,5,'2006-03-09','b'),(4,5,'2001-06-05','x'),
(1,5,'2008-01-23','t'),(6,5,'2007-06-18','d'),
(4,5,'1900-01-01','r'),(8,5,'1900-01-01','m'),
(4,5,'2006-03-09','b'),(4,5,'2001-06-05','f'),
(4,5,'2001-06-05','x'),(8,5,'1900-01-01','m'),
(4,5,'2006-03-09','b'),(4,5,'2001-06-05','x'),
(1,5,'2008-01-23','t'),(6,5,'2007-06-18','d'),
(4,5,'1900-01-01','r'),(8,5,'1900-01-01','m'),
(4,5,'2006-03-09','b'),(6,5,'2007-06-18','d'),
(6,5,'2007-06-18','d'),(4,5,'1900-01-01','r'),
(8,5,'1900-01-01','m'),(4,5,'2006-03-09','b'),
(6,5,'2007-06-18','d'),(4,5,'1900-01-01','r'),
(8,5,'1900-01-01','m'),(4,5,'2006-03-09','b'),
(4,5,'2006-03-09','b'),(4,5,'2001-06-05','x'),
(1,5,'2008-01-23','t'),(6,5,'2007-06-18','d'),
(4,5,'1900-01-01','r'),(8,5,'1900-01-01','m'),
(4,5,'2006-03-09','b'),(4,5,'2001-06-05','x'),
(4,5,'2001-06-05','x'),(1,5,'2008-01-23','t'),
(6,5,'2007-06-18','d'),(4,5,'1900-01-01','r'),
(8,5,'1900-01-01','m'),(4,5,'2006-03-09','b'),
(4,5,'2001-06-05','x'),(1,5,'2008-01-23','t'),
(6,5,'2007-06-18','d'),(4,1,'1900-01-01','r'),
(8,8,'1900-01-01','m'),(4,1,'2006-03-09','b'),
(4,1,'2001-06-05','x'),(7,1,'2006-05-28','g');
CREATE TABLE t2 (
f INT PRIMARY KEY NOT NULL AUTO_INCREMENT,
g INT,
h VARCHAR(1),
KEY (g)
);
INSERT INTO t2 (g,h) VALUES
(3,'e'),(1,'u'),(4,'v'),(9,'u'),(6,'i'),(1,'x'),
(5,'l'),(8,'y'),(0,'p'),(0,'f'),(0,'p'),(7,'d'),
(7,'f'),(5,'j'),(3,'e'),(1,'u'),(4,'v'),(9,'u'),
(6,'i'),(1,'x'),(5,'l'),(8,'y'),(0,'p'),(0,'f'),
(0,'p'),(0,'f'),(0,'p'),(7,'d'),(7,'f'),(5,'j'),
(3,'e'),(1,'u'),(4,'v'),(9,'u'),(6,'i'),(1,'x'),
(7,'d'),(7,'f'),(5,'j'),(3,'e'),(1,'u'),(4,'v'),
(9,'u'),(6,'i'),(1,'x'),(5,'l'),(8,'y'),(0,'p'),
(0,'f'),(0,'p'),(7,'d'),(7,'f'),(5,'j'),(3,'e'),
(1,'u'),(4,'v'),(9,'u'),(6,'i'),(1,'x'),(5,'l'),
(6,'q'),(2,'n'),(4,'r'),(4,'b'),(8,'y'),(0,'p'),
(0,'f'),(0,'p'),(7,'d'),(7,'f'),(5,'j'),(3,'e'),
(1,'u'),(4,'v'),(9,'u'),(6,'i'),(1,'x'),(5,'l'),
(8,'y'),(0,'p'),(0,'f'),(0,'p'),(7,'d'),(7,'f'),
(5,'j'),(3,'e'),(1,'u'),(4,'v'),(9,'u'),(6,'i'),
(1,'x'),(5,'l'),(8,'y'),(0,'p'),(0,'f'),(0,'p'),
(0,'f'),(0,'p'),(7,'d'),(7,'f'),(5,'j'),(3,'e'),
(1,'u'),(4,'v'),(9,'u'),(6,'i'),(1,'x'),(7,'d'),
(7,'f'),(5,'j'),(3,'e'),(1,'u'),(0,'f'),(0,'p'),
(7,'d'),(7,'f'),(5,'j'),(3,'e'),(1,'u'),(4,'v'),
(9,'u'),(6,'i'),(1,'x'),(5,'l'),(8,'y'),(0,'p'),
(0,'f'),(0,'p'),(0,'f'),(0,'p'),(7,'d'),(7,'f'),
(5,'j'),(3,'e'),(1,'u'),(4,'v'),(9,'u'),(6,'i'),
(1,'x'),(7,'d'),(7,'f'),(5,'j'),(3,'e'),(1,'u'),
(4,'v'),(9,'u'),(6,'i'),(1,'x'),(5,'l'),(8,'y'),
(0,'p'),(0,'f'),(0,'p'),(7,'d'),(7,'f'),(5,'j'),
(3,'e'),(1,'u'),(4,'v'),(9,'u'),(6,'i'),(1,'x'),
(5,'l'),(6,'q'),(2,'n'),(4,'r'),(4,'b'),(8,'y'),
(0,'p'),(0,'f'),(0,'p'),(7,'d'),(7,'f'),(5,'j'),
(3,'e'),(1,'u'),(4,'v'),(9,'u'),(6,'i'),(1,'x'),
(7,'f'),(5,'j'),(3,'e'),(1,'u'),(4,'v'),(9,'u');
SET @save_optimize_switch=@@optimizer_switch;
SET optimizer_switch='materialization=on';
EXPLAIN
SELECT COUNT(*) FROM t1 AS t, t2
WHERE c = g
AND (EXISTS (SELECT * FROM t1, t2 WHERE a = f AND h <= t.e AND a > t.b)
OR a = 0 AND h < 'z' );
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t ALL PRIMARY,c NULL NULL NULL 64 Using where
1 PRIMARY t2 ref g g 5 test.t.c 19 Using where
2 DEPENDENT SUBQUERY t1 index PRIMARY PRIMARY 4 NULL 64 Using where; Using index
2 DEPENDENT SUBQUERY t2 eq_ref PRIMARY PRIMARY 4 test.t1.a 1 Using index condition; Using where
SELECT COUNT(*) FROM t1 AS t, t2
WHERE c = g
AND (EXISTS (SELECT * FROM t1, t2 WHERE a = f AND h <= t.e AND a > t.b)
OR a = 0 AND h < 'z' );
COUNT(*)
1478
SELECT COUNT(*) FROM t1 AS t, t2
WHERE c = g
AND (EXISTS (SELECT * FROM t1, t2 WHERE a = f AND h <= t.e AND a > t.b)
OR a = 0 AND h < 'z' );
COUNT(*)
1478
SET optimizer_switch=@save_optimizer_switch;
DROP TABLE t1,t2;
drop table if exists t0, t1, t1i, t1m;
#
# BUG#826935 Assertion `!table || (!table->read_set || bitmap_is_set(table->read_set, field_index))' failed
@ -755,6 +862,8 @@ INSERT INTO t3 VALUES ('c');
CREATE TABLE t4 ( b int, c varchar(1), KEY (b));
INSERT INTO t4 VALUES (7,'c');
INSERT INTO t4 VALUES (7,'c');
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='outer_join_with_cache=off';
# Must be t1,t2,t3,t4, with t4 having Full-scan-on-NULL but not Using index condition
explain
SELECT * FROM t1 LEFT JOIN t2 ON t1.c=t2.b
@ -763,8 +872,8 @@ t2.b NOT IN (SELECT t4.b FROM t3 STRAIGHT_JOIN t4 WHERE t4.b <= 2 AND t4.c = t3.
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where
2 SUBQUERY t3 ALL NULL NULL NULL NULL 2
2 SUBQUERY t4 range b b 5 NULL 1 Using index condition; Using where; Rowid-ordered scan; Using join buffer (flat, BNL join)
2 MATERIALIZED t3 ALL NULL NULL NULL NULL 2
2 MATERIALIZED t4 range b b 5 NULL 1 Using index condition; Using where; Rowid-ordered scan; Using join buffer (flat, BNL join)
SELECT * FROM t1 LEFT JOIN t2 ON t1.c=t2.b
WHERE
t2.b NOT IN (SELECT t4.b FROM t3 STRAIGHT_JOIN t4 WHERE t4.b <= 2 AND t4.c = t3.c);
@ -776,5 +885,6 @@ Warning 1292 Truncated incorrect DOUBLE value: 'c'
Warning 1292 Truncated incorrect DOUBLE value: 'c'
Warning 1292 Truncated incorrect DOUBLE value: 'c'
Warning 1292 Truncated incorrect DOUBLE value: 'c'
SET optimizer_switch=@save_optimizer_switch;
DROP TABLE t1,t2,t3,t4;
set optimizer_switch=@myisam_icp_tmp;

4
mysql-test/r/myisam_mrr.result
View File

@ -350,9 +350,9 @@ GROUP BY t2.pk
);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1 100.00
2 SUBQUERY t2 ref int_key int_key 5 const 1 100.00 Using index condition; Using where; Using filesort
2 SUBQUERY t2 ref int_key int_key 5 const 1 100.00 Using index condition
Warnings:
Note 1003 select min(1) AS `MIN(t1.pk)` from dual where exists(select `test`.`t2`.`pk` from `test`.`t2` where isnull(`test`.`t2`.`int_key`) group by `test`.`t2`.`pk`)
Note 1003 select min(1) AS `MIN(t1.pk)` from dual where exists(select `test`.`t2`.`pk` from `test`.`t2` where isnull(`test`.`t2`.`int_key`))
DROP TABLE t1, t2;
#
# BUG#42048 Discrepancy between MyISAM and Maria's ICP implementation

4
mysql-test/r/mysqld--help-notwin.result
View File

@ -898,7 +898,7 @@ init-slave
interactive-timeout 28800
join-buffer-size 131072
join-buffer-space-limit 2097152
join-cache-level 1
join-cache-level 2
keep-files-on-create FALSE
key-buffer-size 134217728
key-cache-age-threshold 300
@ -978,7 +978,7 @@ old-passwords FALSE
old-style-user-limits FALSE
optimizer-prune-level 1
optimizer-search-depth 62
optimizer-switch index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=off,derived_with_keys=off,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=off,semijoin_with_cache=off,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on
optimizer-switch index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on
performance-schema FALSE
performance-schema-events-waits-history-long-size 10000
performance-schema-events-waits-history-size 10

3
mysql-test/r/named_pipe.result
View File

@ -1347,6 +1347,8 @@ fld1 fld1
250503 250505
250504 250505
250505 250505
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='outer_join_with_cache=off';
insert into t2 (fld1, companynr) values (999999,99);
select t2.companynr,companyname from t2 left join t4 using (companynr) where t4.companynr is null;
companynr companyname
@ -1422,6 +1424,7 @@ explain select companynr,companyname from t4 left join t2 using (companynr) wher
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where
1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where
SET optimizer_switch=@save_optimizer_switch;
select distinct t2.companynr,t4.companynr from t2,t4 where t2.companynr=t4.companynr+1;
companynr companynr
37 36

3
mysql-test/r/order_by.result
View File

@ -179,6 +179,8 @@ INSERT INTO t2 VALUES (1,50);
INSERT INTO t2 VALUES (2,25);
INSERT INTO t3 VALUES (1,'123 Park Place');
INSERT INTO t3 VALUES (2,'453 Boardwalk');
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='outer_join_with_cache=off';
SELECT a,b,if(b = 1,i,if(b = 2,v,''))
FROM t1
LEFT JOIN t2 USING(c)
@ -217,6 +219,7 @@ a b if(b = 1,i,if(b = 2,v,''))
2 1 25
3 2 123 Park Place
4 2 453 Boardwalk
SET optimizer_switch=@save_optimizer_switch;
drop table t1,t2,t3;
create table t1 (ID int not null primary key, TransactionID int not null);
insert into t1 (ID, TransactionID) values (1, 87), (2, 89), (3, 92), (4, 94), (5, 486), (6, 490), (7, 753), (9, 828), (10, 832), (11, 834), (12, 840);

23
mysql-test/r/partition_innodb_plugin.result
View File

@ -1,3 +1,26 @@
#
# Bug#11766879/Bug#60106: DIFF BETWEEN # OF INDEXES IN MYSQL VS INNODB,
# PARTITONING, ON INDEX CREATE
#
call mtr.add_suppression("contains 2 indexes inside InnoDB, which is different from the number of indexes 1 defined in the MySQL");
CREATE TABLE t1 (
id bigint NOT NULL AUTO_INCREMENT,
time date,
id2 bigint not null,
PRIMARY KEY (id,time)
) ENGINE=InnoDB DEFAULT CHARSET=utf8
/*!50100 PARTITION BY RANGE(TO_DAYS(time))
(PARTITION p10 VALUES LESS THAN (734708) ENGINE = InnoDB,
PARTITION p20 VALUES LESS THAN MAXVALUE ENGINE = InnoDB) */;
INSERT INTO t1 (time,id2) VALUES ('2011-07-24',1);
INSERT INTO t1 (time,id2) VALUES ('2011-07-25',1);
INSERT INTO t1 (time,id2) VALUES ('2011-07-25',1);
CREATE UNIQUE INDEX uk_time_id2 on t1(time,id2);
ERROR 23000: Duplicate entry '2011-07-25-1' for key 'uk_time_id2'
SELECT COUNT(*) FROM t1;
COUNT(*)
3
DROP TABLE t1;
call mtr.add_suppression("InnoDB: Error: table `test`.`t1` .* InnoDB internal");
#
# Bug#55091: Server crashes on ADD PARTITION after a failed attempt

6
mysql-test/r/pool_of_threads.result
View File

@ -1,3 +1,5 @@
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='outer_join_with_cache=off';
drop table if exists t1,t2,t3,t4;
CREATE TABLE t1 (
Period smallint(4) unsigned zerofill DEFAULT '0000' NOT NULL,
@ -1347,6 +1349,8 @@ fld1 fld1
250503 250505
250504 250505
250505 250505
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='outer_join_with_cache=off';
insert into t2 (fld1, companynr) values (999999,99);
select t2.companynr,companyname from t2 left join t4 using (companynr) where t4.companynr is null;
companynr companyname
@ -1422,6 +1426,7 @@ explain select companynr,companyname from t4 left join t2 using (companynr) wher
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where
1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where
SET optimizer_switch=@save_optimizer_switch;
select distinct t2.companynr,t4.companynr from t2,t4 where t2.companynr=t4.companynr+1;
companynr companynr
37 36
@ -2151,6 +2156,7 @@ Privat (Private Nutzung) Mobilfunk
Warnings:
Warning 1052 Column 'kundentyp' in group statement is ambiguous
drop table t1;
SET optimizer_switch=@save_optimizer_switch;
SELECT sleep(5);
SELECT sleep(5);
# -- Success: more than --thread-pool-size normal connections not possible

6
mysql-test/r/ps.result
View File

@ -151,6 +151,8 @@ c32 set('monday', 'tuesday', 'wednesday')
create table t2 like t1;
set @save_optimizer_switch=@@optimizer_switch;
set @@optimizer_switch="partial_match_rowid_merge=off,partial_match_table_scan=off";
set @tmp_optimizer_switch=@@optimizer_switch;
set optimizer_switch='derived_merge=off,derived_with_keys=off';
set @stmt= ' explain SELECT (SELECT SUM(c1 + c12 + 0.0) FROM t2 where (t1.c2 - 0e-3) = t2.c2 GROUP BY t1.c15 LIMIT 1) as scalar_s, exists (select 1.0e+0 from t2 where t2.c3 * 9.0000000000 = t1.c4) as exists_s, c5 * 4 in (select c6 + 0.3e+1 from t2) as in_s, (c7 - 4, c8 - 4) in (select c9 + 4.0, c10 + 40e-1 from t2) as in_row_s FROM t1, (select c25 x, c32 y from t2) tt WHERE x * 1 = c25 ' ;
prepare stmt1 from @stmt ;
execute stmt1 ;
@ -178,6 +180,7 @@ id select_type table type possible_keys key key_len ref rows Extra
3 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
deallocate prepare stmt1;
set optimizer_switch=@tmp_optimizer_switch;
drop tables t1,t2;
set @@optimizer_switch=@save_optimizer_switch;
set @arg00=1;
@ -3013,6 +3016,8 @@ DROP TABLE t1;
#
CREATE TABLE t1(a INT);
INSERT INTO t1 VALUES (1),(2);
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='outer_join_with_cache=off';
PREPARE stmt FROM 'EXPLAIN EXTENDED SELECT 1 FROM t1 RIGHT JOIN t1 t2 ON 1';
EXECUTE stmt;
id select_type table type possible_keys key key_len ref rows filtered Extra
@ -3027,6 +3032,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
Warnings:
Note 1003 select 1 AS `1` from `test`.`t1` `t2` left join `test`.`t1` on(1) where 1
DEALLOCATE PREPARE stmt;
SET optimizer_switch=@save_optimizer_switch;
DROP TABLE t1;
#
# Bug#54488 crash when using explain and prepared statements with subqueries

17
mysql-test/r/query_cache.result
View File

@ -1051,6 +1051,23 @@ Qcache_inserts 1
show status like "Qcache_hits";
Variable_name Value
Qcache_hits 1
set query_cache_strip_comments=1;
(select a from t1) union (select a from t1);
a
(select a from t1) /* */union (select a from t1);
a
set query_cache_strip_comments=0;
(select a from t1) union (select a from t1);
a
show status like "Qcache_queries_in_cache";
Variable_name Value
Qcache_queries_in_cache 1
show status like "Qcache_inserts";
Variable_name Value
Qcache_inserts 1
show status like "Qcache_hits";
Variable_name Value
Qcache_hits 4
drop table t1;
create table t1 (a int);
insert into t1 values (1),(2);

71
mysql-test/r/select.result
View File

@ -1,6 +1,9 @@
drop table if exists t1,t2,t3,t4,t11;
drop table if exists t1_1,t1_2,t9_1,t9_2,t1aa,t2aa;
drop view if exists v1;
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch=ifnull(@optimizer_switch_for_select_test,'outer_join_with_cache=off');
set join_cache_level=1;
CREATE TABLE t1 (
Period smallint(4) unsigned zerofill DEFAULT '0000' NOT NULL,
Varor_period smallint(4) unsigned DEFAULT '0' NOT NULL
@ -2196,10 +2199,10 @@ a a
select * from (t1 as t2 left join t1 as t3 using (a)) inner join t1 on t1.a>1;
a a
1 2
2 2
3 2
1 3
2 2
2 3
3 2
3 3
select * from t1 inner join (t1 as t2 left join t1 as t3 using (a)) on t1.a>1;
a a
@ -5088,6 +5091,33 @@ ON t3.f31 = t6.f61
WHERE t7.f71>0;
f23
DROP TABLE t1,t2,t3,t4,t5,t6,t7;
CREATE TABLE t1(f1 int UNSIGNED) engine=myisam;
INSERT INTO t1 VALUES (3),(2),(1);
set sql_buffer_result=0;
SELECT f1 FROM t1 GROUP BY 1;
f1
1
2
3
SELECT f1 FROM t1 GROUP BY '123' = 'abc';
f1
3
SELECT 1 FROM t1 GROUP BY 1;
1
1
set sql_buffer_result=1;
SELECT f1 FROM t1 GROUP BY 1;
f1
1
2
3
SELECT f1 FROM t1 GROUP BY '123' = 'abc';
f1
3
SELECT 1 FROM t1 GROUP BY 1;
1
1
drop table t1;
#
# Bug #58422: Incorrect result when OUTER JOIN'ing
# with an empty table
@ -5204,3 +5234,40 @@ avg(distinct(t1.a))
0
DROP TABLE t1;
# End of test BUG#57203
# lp:822760 Wrong result with view + invalid dates
#
CREATE TABLE t1 (f1 date);
INSERT IGNORE INTO t1 VALUES ('0000-00-00');
CREATE OR REPLACE VIEW v1 AS SELECT * FROM t1;
SELECT * FROM t1 HAVING f1 = 'zz';
f1
0000-00-00
Warnings:
Warning 1292 Incorrect datetime value: 'zz'
SELECT * FROM t1 HAVING f1 <= 'aa' ;
f1
0000-00-00
Warnings:
Warning 1292 Incorrect datetime value: 'aa'
SELECT * FROM t1 HAVING f1 = 'zz' AND f1 <= 'aa' ;
f1
0000-00-00
Warnings:
Warning 1292 Incorrect datetime value: 'zz'
Warning 1292 Incorrect datetime value: 'aa'
SELECT * FROM t1 WHERE f1 = 'zz' AND f1 <= 'aa' ;
f1
0000-00-00
Warnings:
Warning 1292 Incorrect datetime value: 'zz'
Warning 1292 Incorrect datetime value: 'aa'
Warning 1292 Incorrect datetime value: 'zz'
SELECT * FROM v1 HAVING f1 = 'zz' AND f1 <= 'aa' ;
f1
0000-00-00
Warnings:
Warning 1292 Incorrect datetime value: 'zz'
Warning 1292 Incorrect datetime value: 'aa'
DROP TABLE t1;
DROP VIEW v1;
SET optimizer_switch=@save_optimizer_switch;

77
mysql-test/r/select_jcl6.result
View File

@ -7,9 +7,14 @@ set join_cache_level=6;
show variables like 'join_cache_level';
Variable_name Value
join_cache_level 6
set @optimizer_switch_for_select_test=@@optimizer_switch;
set @join_cache_level_for_select_test=@@join_cache_level;
drop table if exists t1,t2,t3,t4,t11;
drop table if exists t1_1,t1_2,t9_1,t9_2,t1aa,t2aa;
drop view if exists v1;
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch=ifnull(@optimizer_switch_for_select_test,'outer_join_with_cache=off');
set join_cache_level=@join_cache_level_for_select_test;
CREATE TABLE t1 (
Period smallint(4) unsigned zerofill DEFAULT '0000' NOT NULL,
Varor_period smallint(4) unsigned DEFAULT '0' NOT NULL
@ -2205,10 +2210,10 @@ a a
select * from (t1 as t2 left join t1 as t3 using (a)) inner join t1 on t1.a>1;
a a
1 2
2 2
3 2
1 3
2 2
2 3
3 2
3 3
select * from t1 inner join (t1 as t2 left join t1 as t3 using (a)) on t1.a>1;
a a
@ -5097,6 +5102,33 @@ ON t3.f31 = t6.f61
WHERE t7.f71>0;
f23
DROP TABLE t1,t2,t3,t4,t5,t6,t7;
CREATE TABLE t1(f1 int UNSIGNED) engine=myisam;
INSERT INTO t1 VALUES (3),(2),(1);
set sql_buffer_result=0;
SELECT f1 FROM t1 GROUP BY 1;
f1
1
2
3
SELECT f1 FROM t1 GROUP BY '123' = 'abc';
f1
3
SELECT 1 FROM t1 GROUP BY 1;
1
1
set sql_buffer_result=1;
SELECT f1 FROM t1 GROUP BY 1;
f1
1
2
3
SELECT f1 FROM t1 GROUP BY '123' = 'abc';
f1
3
SELECT 1 FROM t1 GROUP BY 1;
1
1
drop table t1;
#
# Bug #58422: Incorrect result when OUTER JOIN'ing
# with an empty table
@ -5213,8 +5245,47 @@ avg(distinct(t1.a))
0
DROP TABLE t1;
# End of test BUG#57203
# lp:822760 Wrong result with view + invalid dates
#
CREATE TABLE t1 (f1 date);
INSERT IGNORE INTO t1 VALUES ('0000-00-00');
CREATE OR REPLACE VIEW v1 AS SELECT * FROM t1;
SELECT * FROM t1 HAVING f1 = 'zz';
f1
0000-00-00
Warnings:
Warning 1292 Incorrect datetime value: 'zz'
SELECT * FROM t1 HAVING f1 <= 'aa' ;
f1
0000-00-00
Warnings:
Warning 1292 Incorrect datetime value: 'aa'
SELECT * FROM t1 HAVING f1 = 'zz' AND f1 <= 'aa' ;
f1
0000-00-00
Warnings:
Warning 1292 Incorrect datetime value: 'zz'
Warning 1292 Incorrect datetime value: 'aa'
SELECT * FROM t1 WHERE f1 = 'zz' AND f1 <= 'aa' ;
f1
0000-00-00
Warnings:
Warning 1292 Incorrect datetime value: 'zz'
Warning 1292 Incorrect datetime value: 'aa'
Warning 1292 Incorrect datetime value: 'zz'
SELECT * FROM v1 HAVING f1 = 'zz' AND f1 <= 'aa' ;
f1
0000-00-00
Warnings:
Warning 1292 Incorrect datetime value: 'zz'
Warning 1292 Incorrect datetime value: 'aa'
DROP TABLE t1;
DROP VIEW v1;
SET optimizer_switch=@save_optimizer_switch;
set join_cache_level=default;
show variables like 'join_cache_level';
Variable_name Value
join_cache_level 1
join_cache_level 2
set @@optimizer_switch=@save_optimizer_switch_jcl6;
set @optimizer_switch_for_select_test=NULL;
set @join_cache_level_for_select_test=NULL;

71
mysql-test/r/select_pkeycache.result
View File

@ -1,6 +1,9 @@
drop table if exists t1,t2,t3,t4,t11;
drop table if exists t1_1,t1_2,t9_1,t9_2,t1aa,t2aa;
drop view if exists v1;
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch=ifnull(@optimizer_switch_for_select_test,'outer_join_with_cache=off');
set join_cache_level=1;
CREATE TABLE t1 (
Period smallint(4) unsigned zerofill DEFAULT '0000' NOT NULL,
Varor_period smallint(4) unsigned DEFAULT '0' NOT NULL
@ -2196,10 +2199,10 @@ a a
select * from (t1 as t2 left join t1 as t3 using (a)) inner join t1 on t1.a>1;
a a
1 2
2 2
3 2
1 3
2 2
2 3
3 2
3 3
select * from t1 inner join (t1 as t2 left join t1 as t3 using (a)) on t1.a>1;
a a
@ -5088,6 +5091,33 @@ ON t3.f31 = t6.f61
WHERE t7.f71>0;
f23
DROP TABLE t1,t2,t3,t4,t5,t6,t7;
CREATE TABLE t1(f1 int UNSIGNED) engine=myisam;
INSERT INTO t1 VALUES (3),(2),(1);
set sql_buffer_result=0;
SELECT f1 FROM t1 GROUP BY 1;
f1
1
2
3
SELECT f1 FROM t1 GROUP BY '123' = 'abc';
f1
3
SELECT 1 FROM t1 GROUP BY 1;
1
1
set sql_buffer_result=1;
SELECT f1 FROM t1 GROUP BY 1;
f1
1
2
3
SELECT f1 FROM t1 GROUP BY '123' = 'abc';
f1
3
SELECT 1 FROM t1 GROUP BY 1;
1
1
drop table t1;
#
# Bug #58422: Incorrect result when OUTER JOIN'ing
# with an empty table
@ -5204,3 +5234,40 @@ avg(distinct(t1.a))
0
DROP TABLE t1;
# End of test BUG#57203
# lp:822760 Wrong result with view + invalid dates
#
CREATE TABLE t1 (f1 date);
INSERT IGNORE INTO t1 VALUES ('0000-00-00');
CREATE OR REPLACE VIEW v1 AS SELECT * FROM t1;
SELECT * FROM t1 HAVING f1 = 'zz';
f1
0000-00-00
Warnings:
Warning 1292 Incorrect datetime value: 'zz'
SELECT * FROM t1 HAVING f1 <= 'aa' ;
f1
0000-00-00
Warnings:
Warning 1292 Incorrect datetime value: 'aa'
SELECT * FROM t1 HAVING f1 = 'zz' AND f1 <= 'aa' ;
f1
0000-00-00
Warnings:
Warning 1292 Incorrect datetime value: 'zz'
Warning 1292 Incorrect datetime value: 'aa'
SELECT * FROM t1 WHERE f1 = 'zz' AND f1 <= 'aa' ;
f1
0000-00-00
Warnings:
Warning 1292 Incorrect datetime value: 'zz'
Warning 1292 Incorrect datetime value: 'aa'
Warning 1292 Incorrect datetime value: 'zz'
SELECT * FROM v1 HAVING f1 = 'zz' AND f1 <= 'aa' ;
f1
0000-00-00
Warnings:
Warning 1292 Incorrect datetime value: 'zz'
Warning 1292 Incorrect datetime value: 'aa'
DROP TABLE t1;
DROP VIEW v1;
SET optimizer_switch=@save_optimizer_switch;

3
mysql-test/r/shm.result
View File

@ -1347,6 +1347,8 @@ fld1 fld1
250503 250505
250504 250505
250505 250505
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='outer_join_with_cache=off';
insert into t2 (fld1, companynr) values (999999,99);
select t2.companynr,companyname from t2 left join t4 using (companynr) where t4.companynr is null;
companynr companyname
@ -1422,6 +1424,7 @@ explain select companynr,companyname from t4 left join t2 using (companynr) wher
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where
1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where
SET optimizer_switch=@save_optimizer_switch;
select distinct t2.companynr,t4.companynr from t2,t4 where t2.companynr=t4.companynr+1;
companynr companynr
37 36

3
mysql-test/r/ssl.result
View File

@ -1350,6 +1350,8 @@ fld1 fld1
250503 250505
250504 250505
250505 250505
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='outer_join_with_cache=off';
insert into t2 (fld1, companynr) values (999999,99);
select t2.companynr,companyname from t2 left join t4 using (companynr) where t4.companynr is null;
companynr companyname
@ -1425,6 +1427,7 @@ explain select companynr,companyname from t4 left join t2 using (companynr) wher
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where
1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where
SET optimizer_switch=@save_optimizer_switch;
select distinct t2.companynr,t4.companynr from t2,t4 where t2.companynr=t4.companynr+1;
companynr companynr
37 36

3
mysql-test/r/ssl_compress.result
View File

@ -1353,6 +1353,8 @@ fld1 fld1
250503 250505
250504 250505
250505 250505
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='outer_join_with_cache=off';
insert into t2 (fld1, companynr) values (999999,99);
select t2.companynr,companyname from t2 left join t4 using (companynr) where t4.companynr is null;
companynr companyname
@ -1428,6 +1430,7 @@ explain select companynr,companyname from t4 left join t2 using (companynr) wher
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where
1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where
SET optimizer_switch=@save_optimizer_switch;
select distinct t2.companynr,t4.companynr from t2,t4 where t2.companynr=t4.companynr+1;
companynr companynr
37 36

2
mysql-test/r/status.result
View File

@ -149,7 +149,7 @@ a a
1 1
SHOW SESSION STATUS LIKE 'Last_query_cost';
Variable_name Value
Last_query_cost 4.805836
Last_query_cost 5.205836
DROP TABLE t1;
show status like 'com_show_status';
Variable_name Value

310
mysql-test/r/subselect.result
View File

@ -3,6 +3,7 @@ drop view if exists v2;
set @subselect_tmp=@@optimizer_switch;
set @@optimizer_switch=ifnull(@optimizer_switch_for_subselect_test,
"semijoin=on,firstmatch=on,loosescan=on,semijoin_with_cache=on,partial_match_rowid_merge=off,partial_match_table_scan=off");
set join_cache_level=1;
set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
select (select 2);
(select 2)
@ -201,6 +202,8 @@ select (select t3.a from t3 where a<8 order by 1 desc limit 1), a from
(select * from t2 where a>1) as tt;
(select t3.a from t3 where a<8 order by 1 desc limit 1) a
7 2
set @tmp_optimizer_switch=@@optimizer_switch;
set optimizer_switch='derived_merge=off,derived_with_keys=off';
explain extended select (select t3.a from t3 where a<8 order by 1 desc limit 1), a from
(select * from t2 where a>1) as tt;
id select_type table type possible_keys key key_len ref rows filtered Extra
@ -209,6 +212,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
2 SUBQUERY t3 ALL NULL NULL NULL NULL 3 100.00 Using where; Using filesort
Warnings:
Note 1003 select (select `test`.`t3`.`a` from `test`.`t3` where (`test`.`t3`.`a` < 8) order by 1 desc limit 1) AS `(select t3.a from t3 where a<8 order by 1 desc limit 1)`,`tt`.`a` AS `a` from (select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` where (`test`.`t2`.`a` > 1)) `tt`
set optimizer_switch=@tmp_optimizer_switch;
select * from t1 where t1.a=(select t2.a from t2 where t2.b=(select max(a) from t3) order by 1 desc limit 1);
a
2
@ -1370,7 +1374,7 @@ create table t1 (id int not null auto_increment primary key, salary int, key(sal
insert into t1 (salary) values (100),(1000),(10000),(10),(500),(5000),(50000);
explain extended SELECT id FROM t1 where salary = (SELECT MAX(salary) FROM t1);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ref salary salary 5 const 0 0.00 Using index condition
1 PRIMARY t1 ref salary salary 5 const 0 0.00 Using where
2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away
Warnings:
Note 1003 select `test`.`t1`.`id` AS `id` from `test`.`t1` where (`test`.`t1`.`salary` = (select max(`test`.`t1`.`salary`) from `test`.`t1`))
@ -1395,7 +1399,7 @@ insert into t1 values (1,0), (2,0), (3,0);
insert into t2 values (1,1), (2,1), (3,1), (2,2);
update ignore t1 set b=(select b from t2 where t1.a=t2.a);
Warnings:
Error 1242 Subquery returns more than 1 row
Warning 1242 Subquery returns more than 1 row
select * from t1;
a b
1 1
@ -1658,7 +1662,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>(<in_optimizer>(`test`.`t3`.`a`,(<max>(select NULL from `test`.`t2` group by 1) > <cache>(`test`.`t3`.`a`))))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>(<in_optimizer>(`test`.`t3`.`a`,((select max(NULL) from `test`.`t2`) > <cache>(`test`.`t3`.`a`))))
select * from t3 where a >= some (select b from t2 group by 1);
a
explain extended select * from t3 where a >= some (select b from t2 group by 1);
@ -1666,7 +1670,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(`test`.`t3`.`a`,(<min>(select NULL from `test`.`t2` group by 1) <= <cache>(`test`.`t3`.`a`))))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(`test`.`t3`.`a`,((select min(NULL) from `test`.`t2`) <= <cache>(`test`.`t3`.`a`))))
select * from t3 where NULL >= any (select b from t2);
a
explain extended select * from t3 where NULL >= any (select b from t2);
@ -1682,7 +1686,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,(<min>(select NULL from `test`.`t2` group by 1) <= NULL)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,((select min(NULL) from `test`.`t2`) <= NULL)))
select * from t3 where NULL >= some (select b from t2);
a
explain extended select * from t3 where NULL >= some (select b from t2);
@ -1698,7 +1702,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,(<min>(select NULL from `test`.`t2` group by 1) <= NULL)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,((select min(NULL) from `test`.`t2`) <= NULL)))
insert into t2 values (2,2), (2,1), (3,3), (3,1);
select * from t3 where a > all (select max(b) from t2 group by a);
a
@ -2970,15 +2974,15 @@ explain extended SELECT one,two from t1 where ROW(one,two) IN (SELECT one,two FR
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 10 func,func 1 100.00
2 SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 9 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`flag` = 'N'))
explain extended SELECT one,two,ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = '0' group by one,two) as 'test' from t1;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00
2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where; Using temporary
2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<expr_cache><`test`.`t1`.`one`,`test`.`t1`.`two`>(<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where (`test`.`t2`.`flag` = '0') group by `test`.`t2`.`one`,`test`.`t2`.`two` having (trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`))) and trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`)))))) AS `test` from `test`.`t1`
Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<expr_cache><`test`.`t1`.`one`,`test`.`t1`.`two`>(<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where ((`test`.`t2`.`flag` = '0') and trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`)))) having (trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`)))))) AS `test` from `test`.`t1`
DROP TABLE t1,t2;
set optimizer_switch=@tmp11867_optimizer_switch;
CREATE TABLE t1 (a char(5), b char(5));
@ -3560,7 +3564,7 @@ SELECT * FROM t1 WHERE (a,b) = ANY (SELECT a, max(b) FROM t1 GROUP BY a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 9 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 23 test.t1.a,test.t1.b 1
2 SUBQUERY t1 ALL NULL NULL NULL NULL 9 Using temporary
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 9 Using temporary
ALTER TABLE t1 ADD INDEX(a);
SELECT * FROM t1 WHERE (a,b) = ANY (SELECT a, max(b) FROM t1 GROUP BY a);
a b
@ -3572,7 +3576,7 @@ SELECT * FROM t1 WHERE (a,b) = ANY (SELECT a, max(b) FROM t1 GROUP BY a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL a NULL NULL NULL 9 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 23 test.t1.a,test.t1.b 1
2 SUBQUERY t1 ALL NULL NULL NULL NULL 9 Using temporary
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 9 Using temporary
DROP TABLE t1;
create table t1( f1 int,f2 int);
insert into t1 values (1,1),(2,2);
@ -4356,6 +4360,9 @@ LEFT(t1.a1,1)
SELECT a2 FROM t2 WHERE t2.a2 IN (SELECT t1.a1 FROM t1,t3 WHERE t1.b1=t3.a3);
a2
DROP TABLE t1, t2, t3;
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='semijoin_with_cache=off';
SET optimizer_switch='materialization=off';
CREATE TABLE t1 (a CHAR(1), b VARCHAR(10));
INSERT INTO t1 VALUES ('a', 'aa');
INSERT INTO t1 VALUES ('a', 'aaa');
@ -4387,6 +4394,7 @@ id select_type table type possible_keys key key_len ref rows Extra
SELECT a,b FROM t1 WHERE b IN (SELECT a FROM t1 WHERE LENGTH(a)<500);
a b
DROP TABLE t1,t2;
SET optimizer_switch= @save_optimizer_switch;
CREATE TABLE t1(a INT, b INT);
INSERT INTO t1 VALUES (1,1), (1,2), (2,3), (2,4);
EXPLAIN
@ -4512,20 +4520,23 @@ a
drop table t1, t2;
CREATE TABLE t1 (a INT);
INSERT INTO t1 VALUES (1),(2);
EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT 1 FROM t1 GROUP BY a);
SET @save_join_cache_level=@@join_cache_level;
SET join_cache_level=0;
EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT min(a) FROM t1 GROUP BY a);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY <subquery2> const distinct_key distinct_key 5 const 1 100.00
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00
1 PRIMARY <subquery2> const distinct_key distinct_key 4 const 1 100.00
2 SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using temporary
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 2 100.00 Using temporary
Warnings:
Note 1003 select 1 AS `1` from <materialize> (select 1 from `test`.`t1` group by `test`.`t1`.`a`) join `test`.`t1` where (`<subquery2>`.`1` = 1)
EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT 1 FROM t1 WHERE a > 3 GROUP BY a);
Note 1003 select 1 AS `1` from <materialize> (select min(`test`.`t1`.`a`) from `test`.`t1` group by `test`.`t1`.`a`) join `test`.`t1` where (`<subquery2>`.`min(a)` = 1)
EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT min(a) FROM t1 WHERE a > 3 GROUP BY a);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY <subquery2> const distinct_key distinct_key 5 const 1 100.00
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00
1 PRIMARY <subquery2> const distinct_key distinct_key 4 const 1 100.00
2 SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using where; Using temporary
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 2 100.00 Using where; Using temporary
Warnings:
Note 1003 select 1 AS `1` from <materialize> (select 1 from `test`.`t1` where (`test`.`t1`.`a` > 3) group by `test`.`t1`.`a`) join `test`.`t1` where (`<subquery2>`.`1` = 1)
Note 1003 select 1 AS `1` from <materialize> (select min(`test`.`t1`.`a`) from `test`.`t1` where (`test`.`t1`.`a` > 3) group by `test`.`t1`.`a`) join `test`.`t1` where (`<subquery2>`.`min(a)` = 1)
SET join_cache_level=@save_join_cache_level;
DROP TABLE t1;
#
# Bug#45061: Incorrectly market field caused wrong result.
@ -4601,6 +4612,32 @@ pk int_key
3 3
7 3
DROP TABLE t1,t2;
#
# Bug#12329653
# EXPLAIN, UNION, PREPARED STATEMENT, CRASH, SQL_FULL_GROUP_BY
#
CREATE TABLE t1(a1 int);
INSERT INTO t1 VALUES (1),(2);
SELECT @@session.sql_mode INTO @old_sql_mode;
SET SESSION sql_mode='ONLY_FULL_GROUP_BY';
SELECT 1 FROM t1 WHERE 1 < SOME (SELECT a1 FROM t1);
1
1
1
PREPARE stmt FROM
'SELECT 1 UNION ALL
SELECT 1 FROM t1
ORDER BY
(SELECT 1 FROM t1 AS t1_0
WHERE 1 < SOME (SELECT a1 FROM t1)
)' ;
EXECUTE stmt ;
ERROR 21000: Subquery returns more than 1 row
EXECUTE stmt ;
ERROR 21000: Subquery returns more than 1 row
SET SESSION sql_mode=@old_sql_mode;
DEALLOCATE PREPARE stmt;
DROP TABLE t1;
End of 5.0 tests.
create table t_out (subcase char(3),
a1 char(2), b1 char(2), c1 char(2));
@ -4843,8 +4880,6 @@ SELECT * FROM t1
WHERE EXISTS (SELECT DISTINCT a FROM t2 WHERE t1.a < t2.a ORDER BY b);
pk a
1 10
3 30
2 20
DROP TABLE t1,t2;
CREATE TABLE t1 (a INT, b INT, PRIMARY KEY (a), KEY b (b));
INSERT INTO t1 VALUES (1,NULL), (9,NULL);
@ -5556,8 +5591,8 @@ id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY ot1 ALL NULL NULL NULL NULL 2
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 24 Using where
1 PRIMARY ot4 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
2 SUBQUERY it2 ALL NULL NULL NULL NULL 4
2 SUBQUERY it3 ALL NULL NULL NULL NULL 6 Using join buffer (flat, BNL join)
2 MATERIALIZED it2 ALL NULL NULL NULL NULL 4
2 MATERIALIZED it3 ALL NULL NULL NULL NULL 6 Using join buffer (flat, BNL join)
DROP TABLE IF EXISTS ot1, ot4, it2, it3;
#
# Bug#729039: NULL keys used to evaluate subquery
@ -5598,16 +5633,19 @@ CREATE TABLE t2 (pk INTEGER PRIMARY KEY, i INTEGER NOT NULL);
INSERT INTO t2 VALUES (11,1);
INSERT INTO t2 VALUES (12,2);
INSERT INTO t2 VALUES (15,4);
SET @save_join_cache_level=@@join_cache_level;
SET join_cache_level=0;
EXPLAIN SELECT * FROM t1 WHERE pk IN (SELECT it.pk FROM t2 JOIN t2 AS it ON 1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL PRIMARY NULL NULL NULL 3 Start temporary
1 PRIMARY t2 index NULL PRIMARY 4 NULL 3 Using index; Using join buffer (flat, BNL join)
1 PRIMARY it eq_ref PRIMARY PRIMARY 4 test.t1.pk 1 Using index; End temporary
1 PRIMARY t1 ALL PRIMARY NULL NULL NULL 3
1 PRIMARY it eq_ref PRIMARY PRIMARY 4 test.t1.pk 1 Using index
1 PRIMARY t2 index NULL PRIMARY 4 NULL 3 Using index; FirstMatch(it)
SELECT * FROM t1 WHERE pk IN (SELECT it.pk FROM t2 JOIN t2 AS it ON 1);
pk i
11 0
12 5
15 0
SET join_cache_level=@save_join_cache_level;
DROP table t1,t2;
#
# Bug#751350: crash with pushed condition for outer references when
@ -5615,18 +5653,21 @@ DROP table t1,t2;
#
CREATE TABLE t1 (a int, b int) ;
INSERT INTO t1 VALUES (0,0),(0,0);
set @optimizer_switch_save=@@optimizer_switch;
set @@optimizer_switch='semijoin=off,materialization=on,in_to_exists=on';
EXPLAIN
SELECT b FROM t1
WHERE ('0') IN ( SELECT a FROM t1 GROUP BY a )
GROUP BY b;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using temporary; Using filesort
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using temporary
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using where
SELECT b FROM t1
WHERE ('0') IN ( SELECT a FROM t1 GROUP BY a )
GROUP BY b;
b
0
set @@optimizer_switch=@optimizer_switch_save;
DROP TABLE t1;
#
# Bug #11765713 58705:
@ -5838,6 +5879,8 @@ CREATE TABLE t2 (a int, b int) ;
INSERT INTO t2 VALUES (20,9),(20,9);
create table t3 (d int, e int);
insert into t3 values (2, 9), (3,10);
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='outer_join_with_cache=off';
EXPLAIN
SELECT t2.b , t1.c
FROM t2 LEFT JOIN t1 ON t1.c < 3
@ -5852,9 +5895,9 @@ WHERE (t2.b, t1.c) NOT IN (SELECT * from t3);
b c
9 NULL
9 NULL
SET optimizer_switch=@save_optimizer_switch;
drop table t1, t2, t3;
End of 5.3 tests
End of 5.5 tests.
#
# Bug#12763207 - ASSERT IN SUBSELECT::SINGLE_VALUE_TRANSFORMER
#
@ -5887,10 +5930,13 @@ DROP TABLE t1, t2;
CREATE TABLE t1 (a INT, b INT, INDEX (a));
INSERT INTO t1 VALUES (3, 10), (2, 20), (7, 10), (5, 20);
set @tmp_optimizer_switch=@@optimizer_switch;
set optimizer_switch='derived_merge=off,derived_with_keys=off';
EXPLAIN SELECT * FROM (SELECT * FROM t1 WHERE a=7) t;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2
2 DERIVED t1 ref a a 5 const 1
set optimizer_switch=@tmp_optimizer_switch;
EXPLAIN SELECT * FROM t1 WHERE EXISTS (SELECT * FROM t1 WHERE a=7);
id select_type table type possible_keys key key_len ref rows Extra
@ -5969,7 +6015,7 @@ WHERE f1_key != table2.f1_key AND f1_key >= table1.f1 );
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY table1 ALL NULL NULL NULL NULL 2
1 PRIMARY table2 index NULL f1_key 4 NULL 10 Using where; Using index; Using join buffer (flat, BNL join)
2 DEPENDENT SUBQUERY t2 range f1_key f1_key 4 NULL 6 Range checked for each record (index map: 0x1); Using temporary
2 DEPENDENT SUBQUERY t2 index f1_key f1_key 4 NULL 10 Using where; Using index
DROP TABLE t1,t2;
#
# lp:826279: assertion failure with GROUP BY a result of subquery
@ -6031,5 +6077,211 @@ set @@optimizer_switch='in_to_exists=on,semijoin=off,materialization=off,subquer
select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1)))))))))))))))))))))))))))));
a
1
set @@optimizer_switch=@subselect_tmp;
drop table t1;
#
# LP BUG#894397 Wrong result with in_to_exists, constant table , semijoin=OFF,materialization=OFF
#
CREATE TABLE t1 (a varchar(3));
INSERT INTO t1 VALUES ('AAA'),('BBB');
CREATE TABLE t2 (a varchar(3));
INSERT INTO t2 VALUES ('CCC');
set @@optimizer_switch='semijoin=off,materialization=off,in_to_exists=on,subquery_cache=off';
SELECT * FROM t1 WHERE t1.a IN (SELECT t2.a FROM t2 WHERE t2.a < 'ZZZ');
a
set @@optimizer_switch=@subselect_tmp;
drop table t1, t2;
#
# LP bug #859375: Assertion `0' failed in st_select_lex_unit::optimize
# with view , UNION and prepared statement (rewriting fake_select
# condition).
#
CREATE TABLE t1 ( f1 int NOT NULL, f4 varchar(1) NOT NULL) ;
INSERT INTO t1 VALUES (6,'d'),(7,'y');
CREATE TABLE t2 ( f1 int NOT NULL, f2 int NOT NULL) ;
INSERT INTO t2 VALUES (10,7);
CREATE VIEW v2 AS SELECT * FROM t2;
PREPARE st1 FROM "
SELECT *
FROM t1
LEFT JOIN v2 ON ( v2.f2 = t1.f1 )
WHERE v2.f1 NOT IN (
SELECT 1 UNION
SELECT 247
)
";
EXECUTE st1;
f1 f4 f1 f2
7 y 10 7
deallocate prepare st1;
DROP VIEW v2;
DROP TABLE t1,t2;
#
# LP bug #887458 Crash in subselect_union_engine::no_rows with
# double UNION and join_cache_level=3,8
# (IN/ALL/ANY optimizations should not be applied to fake_select)
CREATE TABLE t2 ( a int, b varchar(1)) ;
INSERT IGNORE INTO t2 VALUES (8,'y'),(8,'y');
CREATE TABLE t1 ( b varchar(1)) ;
INSERT IGNORE INTO t1 VALUES (NULL),(NULL);
set @save_join_cache_level=@@join_cache_level;
SET SESSION join_cache_level=3;
SELECT *
FROM t1, t2
WHERE t2.b IN (
SELECT 'm' UNION
SELECT 'm'
) OR t1.b <> SOME (
SELECT 'v' UNION
SELECT 't'
);
b a b
set @@join_cache_level= @save_join_cache_level;
drop table t1,t2;
#
# LP bug #885162 Got error 124 from storage engine with UNION inside
# subquery and join_cache_level=3..8
# (IN/ALL/ANY optimizations should not be applied to fake_select)
#
CREATE TABLE t1 (
f1 varchar(1) DEFAULT NULL
);
INSERT INTO t1 VALUES ('c');
set @save_join_cache_level=@@join_cache_level;
SET SESSION join_cache_level=8;
SELECT * FROM t1 WHERE t1.f1 IN ( SELECT 'k' UNION SELECT 'e' );
f1
set @@join_cache_level= @save_join_cache_level;
drop table t1;
#
# LP BUG#747278 incorrect values of the NULL (no rows) single
# row subquery requested via element_index() interface
#
CREATE TABLE t1 (f1a int, f1b int) ;
INSERT IGNORE INTO t1 VALUES (1,1),(2,2);
CREATE TABLE t2 ( f2 int);
INSERT IGNORE INTO t2 VALUES (3),(4);
CREATE TABLE t3 (f3a int default 1, f3b int default 2);
INSERT INTO t3 VALUES (1,1),(2,2);
set @old_optimizer_switch = @@session.optimizer_switch;
set @@optimizer_switch='materialization=on,partial_match_rowid_merge=on,partial_match_table_scan=off,subquery_cache=off,semijoin=off';
SELECT (SELECT f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a FROM t1) FROM t2;
(SELECT f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a FROM t1)
NULL
NULL
SELECT (SELECT f3a,f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a,f1a FROM t1) FROM t2;
(SELECT f3a,f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a,f1a FROM t1)
NULL
NULL
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1) FROM t2;
(SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1)
NULL
NULL
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1);
(SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1)
NULL
SELECT (SELECT f3a FROM t3 where f3a > 3) IN (SELECT f1a FROM t1) FROM t2;
(SELECT f3a FROM t3 where f3a > 3) IN (SELECT f1a FROM t1)
NULL
NULL
SELECT (SELECT f3a,f3a FROM t3 where f3a > 3) IN (SELECT f1a,f1a FROM t1) FROM t2;
(SELECT f3a,f3a FROM t3 where f3a > 3) IN (SELECT f1a,f1a FROM t1)
NULL
NULL
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1) FROM t2;
(SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1)
NULL
NULL
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1);
(SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1)
NULL
set @@session.optimizer_switch=@old_optimizer_switch;
SELECT (SELECT f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a FROM t1) FROM t2;
(SELECT f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a FROM t1)
NULL
NULL
SELECT (SELECT f3a,f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a,f1a FROM t1) FROM t2;
(SELECT f3a,f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a,f1a FROM t1)
NULL
NULL
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1) FROM t2;
(SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1)
NULL
NULL
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1);
(SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1)
NULL
SELECT (SELECT f3a FROM t3 where f3a > 3) IN (SELECT f1a FROM t1) FROM t2;
(SELECT f3a FROM t3 where f3a > 3) IN (SELECT f1a FROM t1)
NULL
NULL
SELECT (SELECT f3a,f3a FROM t3 where f3a > 3) IN (SELECT f1a,f1a FROM t1) FROM t2;
(SELECT f3a,f3a FROM t3 where f3a > 3) IN (SELECT f1a,f1a FROM t1)
NULL
NULL
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1) FROM t2;
(SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1)
NULL
NULL
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1);
(SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1)
NULL
select (null, null) = (null, null);
(null, null) = (null, null)
NULL
SELECT (SELECT f3a, f3a FROM t3 where f3a > 3) = (0, 0);
(SELECT f3a, f3a FROM t3 where f3a > 3) = (0, 0)
NULL
drop tables t1,t2,t3;
#
# LP BUG#825051 Wrong result with date/datetime and subquery with GROUP BY and in_to_exists
#
CREATE TABLE t1 (a date, KEY (a)) ;
INSERT INTO t1 VALUES ('2009-01-01'),('2009-02-02');
set @old_optimizer_switch = @@optimizer_switch;
SET @@optimizer_switch='semijoin=off,materialization=off,in_to_exists=on,subquery_cache=off';
EXPLAIN SELECT * FROM t1 WHERE a IN (SELECT a AS field1 FROM t1 GROUP BY field1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 index NULL a 4 NULL 2 Using where; Using index
2 DEPENDENT SUBQUERY t1 index_subquery a a 4 func 2 Using index
SELECT * FROM t1 WHERE a IN (SELECT a AS field1 FROM t1 GROUP BY field1);
a
2009-01-01
2009-02-02
SET @@optimizer_switch='semijoin=off,materialization=on,in_to_exists=off,subquery_cache=off';
EXPLAIN SELECT * FROM t1 WHERE a IN (SELECT a AS field1 FROM t1 GROUP BY field1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 index NULL a 4 NULL 2 Using where; Using index
2 MATERIALIZED t1 index NULL a 4 NULL 2 Using index
SELECT * FROM t1 WHERE a IN (SELECT a AS field1 FROM t1 GROUP BY field1);
a
2009-01-01
2009-02-02
set @@optimizer_switch=@old_optimizer_switch;
drop table t1;
#
# LP BUG#908269 incorrect condition in case of subqueries depending
# on constant tables
#
CREATE TABLE t1 ( a INT );
INSERT INTO t1 VALUES (1),(5);
CREATE TABLE t2 ( b INT ) ENGINE=MyISAM;
INSERT INTO t2 VALUES (1);
CREATE TABLE t3 ( c INT );
INSERT INTO t3 VALUES (4),(5);
SET optimizer_switch='subquery_cache=off';
SELECT ( SELECT b FROM t2 WHERE b = a OR EXISTS ( SELECT c FROM t3 WHERE c = b ) ) FROM t1;
( SELECT b FROM t2 WHERE b = a OR EXISTS ( SELECT c FROM t3 WHERE c = b ) )
1
NULL
SELECT ( SELECT b FROM t2 WHERE b = a OR b * 0) FROM t1;
( SELECT b FROM t2 WHERE b = a OR b * 0)
1
NULL
SELECT ( SELECT b FROM t2 WHERE b = a OR rand() * 0) FROM t1;
( SELECT b FROM t2 WHERE b = a OR rand() * 0)
1
NULL
drop table t1,t2,t3;
# return optimizer switch changed in the beginning of this test
set optimizer_switch=@subselect_tmp;

37
mysql-test/r/subselect2.result
View File

@ -125,9 +125,9 @@ DOCID DOCNAME DOCTYPEID FOLDERID AUTHOR CREATED TITLE SUBTITLE DOCABSTRACT PUBLI
c373e9f5ad07993f3859444553544200 Last Discussion c373e9f5ad079174ff17444553544200 c373e9f5ad0796c0eca4444553544200 Goldilocks 2003-06-09 11:21:06 Title: Last Discussion NULL Setting new abstract and keeping doc checked out 2003-06-09 10:51:26 2003-06-09 10:51:26 NULL NULL NULL 03eea05112b845949f3fd03278b5fe43 2003-06-09 11:21:06 admin 0 NULL Discussion NULL NULL
EXPLAIN SELECT t2.*, t4.DOCTYPENAME, t1.CONTENTSIZE,t1.MIMETYPE FROM t2 INNER JOIN t4 ON t2.DOCTYPEID = t4.DOCTYPEID LEFT OUTER JOIN t1 ON t2.DOCID = t1.DOCID WHERE t2.FOLDERID IN(SELECT t3.FOLDERID FROM t3 WHERE t3.PARENTID IN(SELECT t3.FOLDERID FROM t3 WHERE t3.PARENTID IN(SELECT t3.FOLDERID FROM t3 WHERE t3.PARENTID IN(SELECT t3.FOLDERID FROM t3 WHERE t3.PARENTID IN(SELECT t3.FOLDERID FROM t3 WHERE t3.PARENTID='2f6161e879db43c1a5b82c21ddc49089' AND t3.FOLDERNAME = 'Level1') AND t3.FOLDERNAME = 'Level2') AND t3.FOLDERNAME = 'Level3') AND t3.FOLDERNAME = 'CopiedFolder') AND t3.FOLDERNAME = 'Movie Reviews') AND t2.DOCNAME = 'Last Discussion';
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t4 ALL PRIMARY NULL NULL NULL 10
1 PRIMARY t2 ALL DDOCTYPEID_IDX,DFOLDERID_IDX NULL NULL NULL 9 Using where; Using join buffer (flat, BNL join)
1 PRIMARY t2 ALL DDOCTYPEID_IDX,DFOLDERID_IDX NULL NULL NULL 9 Using where
1 PRIMARY t1 eq_ref PRIMARY PRIMARY 34 test.t2.DOCID 1
1 PRIMARY t4 eq_ref PRIMARY PRIMARY 34 test.t2.DOCTYPEID 1
1 PRIMARY t3 eq_ref PRIMARY,FFOLDERID_IDX,CMFLDRPARNT_IDX PRIMARY 34 test.t2.FOLDERID 1 Using where
1 PRIMARY t3 eq_ref PRIMARY,FFOLDERID_IDX,CMFLDRPARNT_IDX PRIMARY 34 test.t3.PARENTID 1 Using where
1 PRIMARY t3 eq_ref PRIMARY,FFOLDERID_IDX,CMFLDRPARNT_IDX PRIMARY 34 test.t3.PARENTID 1 Using where
@ -146,4 +146,37 @@ and t2.a='1' AND t1.a=t3.b) > 0;
a
2
DROP TABLE t1,t2,t3;
#
# Bug #902356: DISTINCT in materialized subquery
#
CREATE TABLE t1 (pk int PRIMARY KEY, a int, KEY(a)) ENGINE=InnoDB;
INSERT INTO t1 VALUES (0, 4), (8, 6);
CREATE TABLE t2 (pk int PRIMARY KEY, a int, KEY(a)) ENGINE=InnoDB;
INSERT INTO t2 VALUES (0, 4), (8, 6);
CREATE TABLE t3 (b INT, KEY(b));
INSERT INTO t3 VALUES (7), (0), (4), (2);
CREATE VIEW v1 AS SELECT * FROM t1;
SET @tmp_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='materialization=on,in_to_exists=on';
EXPLAIN
SELECT * FROM t2,t3 WHERE (2,9) IN (SELECT DISTINCT a,pk FROM t1) OR a = b;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 index a a 5 NULL 2 Using index
1 PRIMARY t3 index b b 5 NULL 4 Using where; Using index; Using join buffer (flat, BNL join)
2 MATERIALIZED t1 index PRIMARY,a a 5 NULL 2 Using index
SELECT * FROM t2,t3 WHERE (2,9) IN (SELECT DISTINCT a,pk FROM t1) OR a = b;
pk a b
0 4 4
EXPLAIN
SELECT * FROM t2,t3 WHERE (2,9) IN (SELECT DISTINCT a,pk FROM v1) OR a = b;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 index a a 5 NULL 2 Using index
1 PRIMARY t3 index b b 5 NULL 4 Using where; Using index; Using join buffer (flat, BNL join)
2 MATERIALIZED t1 index PRIMARY,a a 5 NULL 2 Using index
SELECT * FROM t2,t3 WHERE (2,9) IN (SELECT DISTINCT a,pk FROM v1) OR a = b;
pk a b
0 4 4
SET optimizer_switch=@tmp_optimizer_switch;
DROP VIEW v1;
DROP TABLE t1,t2,t3;
set optimizer_switch=@subselect2_test_tmp;

70
mysql-test/r/subselect3.result
View File

@ -1,6 +1,7 @@
drop table if exists t0, t1, t2, t3, t4, t5, t11, t12, t21, t22;
set @subselect3_tmp= @@optimizer_switch;
set optimizer_switch='semijoin=on,firstmatch=on,loosescan=on,semijoin_with_cache=on';
set join_cache_level=1;
create table t1 (oref int, grp int, ie int) ;
insert into t1 (oref, grp, ie) values
(1, 1, 1),
@ -105,7 +106,7 @@ oref a
1 1
show status like '%Handler_read_rnd_next';
Variable_name Value
Handler_read_rnd_next 14
Handler_read_rnd_next 5
delete from t2;
insert into t2 values (NULL, 0),(NULL, 0), (NULL, 0), (NULL, 0);
set optimizer_switch='subquery_cache=off';
@ -1046,8 +1047,8 @@ explain
select (select max(Y.a) from t1 Y where a in (select a from t1 Z) and a < X.a) as subq from t1 X;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY X ALL NULL NULL NULL NULL 2
2 DEPENDENT SUBQUERY Y ALL NULL NULL NULL NULL 2 Using where; Start temporary
2 DEPENDENT SUBQUERY Z ALL NULL NULL NULL NULL 2 Using where; End temporary; Using join buffer (flat, BNL join)
2 DEPENDENT SUBQUERY Y ALL NULL NULL NULL NULL 2 Using where
2 DEPENDENT SUBQUERY Z ALL NULL NULL NULL NULL 2 Using where; Start temporary; End temporary; Using join buffer (flat, BNL join)
select (select max(Y.a) from t1 Y where a in (select a from t1 Z) and a < X.a) as subq from t1 X;
subq
NULL
@ -1117,12 +1118,15 @@ a
set @@optimizer_switch=@save_optimizer_switch;
set @@optimizer_switch=@save_optimizer_switch;
set @@optimizer_switch='materialization=off';
set @tmp_optimizer_switch=@@optimizer_switch;
set optimizer_switch='derived_merge=off,derived_with_keys=off';
explain select * from (select a from t0) X where a in (select a from t1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 11
1 PRIMARY t1 ALL NULL NULL NULL NULL 20 Using where; FirstMatch(<derived2>); Using join buffer (flat, BNL join)
2 DERIVED t0 ALL NULL NULL NULL NULL 11
drop table t0, t1;
set optimizer_switch=@tmp_optimizer_switch;
create table t0 (a int);
insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
create table t1 (kp1 int, kp2 int, c int, filler char(100), key(kp1, kp2));
@ -1132,8 +1136,8 @@ create table t3 (a int);
insert into t3 select A.a + 10*B.a from t0 A, t0 B;
explain select * from t3 where a in (select kp1 from t1 where kp1<20);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 100 Using where
1 PRIMARY t1 ref kp1 kp1 5 test.t3.a 1 Using index; FirstMatch(t3)
1 PRIMARY t1 range kp1 kp1 5 NULL 48 Using where; Using index; LooseScan
1 PRIMARY t3 ALL NULL NULL NULL NULL 100 Using where; Using join buffer (flat, BNL join)
create table t4 (pk int primary key);
insert into t4 select a from t3;
explain select * from t3 where a in (select t1.kp1 from t1,t4 where kp1<20
@ -1175,7 +1179,7 @@ explain select * from t3 where a in (select a from t2) and (a > 5 or a < 10);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 2
1 PRIMARY t3 ref a a 5 test.t2.a 1
2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 Using where
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 Using where
select * from t3 where a in (select a from t2);
a filler
1 filler
@ -1191,27 +1195,27 @@ insert into t3 select * from t1;
insert into t3 values (1),(2);
explain select * from t2 where a in (select a from t1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Start temporary
1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t2 ALL NULL NULL NULL NULL 2
1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Using where; Start temporary; End temporary; Using join buffer (flat, BNL join)
explain select * from t2 where a in (select a from t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Start temporary
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t2 ALL NULL NULL NULL NULL 2
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where; Start temporary; End temporary; Using join buffer (flat, BNL join)
explain select * from t2 where a in (select a from t3);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Start temporary
1 PRIMARY t3 ALL NULL NULL NULL NULL 6 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t2 ALL NULL NULL NULL NULL 2
1 PRIMARY t3 ALL NULL NULL NULL NULL 6 Using where; Start temporary; End temporary; Using join buffer (flat, BNL join)
explain select * from t1 where a in (select a from t3);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Start temporary
1 PRIMARY t3 ALL NULL NULL NULL NULL 6 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t1 ALL NULL NULL NULL NULL 4
1 PRIMARY t3 ALL NULL NULL NULL NULL 6 Using where; Start temporary; End temporary; Using join buffer (flat, BNL join)
drop table t1, t2, t3;
create table t1 (a decimal);
insert into t1 values (1),(2);
explain select * from t1 where a in (select a from t1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Start temporary
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t1 ALL NULL NULL NULL NULL 2
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where; Start temporary; End temporary; Using join buffer (flat, BNL join)
drop table t1;
set @@optimizer_switch=@save_optimizer_switch;
set @@optimizer_switch=@save_optimizer_switch;
@ -1223,8 +1227,8 @@ create table t3 (a int, b int, filler char(100), key(a));
insert into t3 select A.a + 10*B.a, A.a + 10*B.a, 'filler' from t1 A, t1 B, t1 C;
explain select * from t1, t3 where t3.a in (select a from t2) and (t3.a < 10 or t3.a >30) and t1.a =3;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 10 Using where; Start temporary
1 PRIMARY t2 ALL NULL NULL NULL NULL 10 Using where; Using join buffer (flat, BNL join)
1 PRIMARY t1 ALL NULL NULL NULL NULL 10 Using where
1 PRIMARY t2 ALL NULL NULL NULL NULL 10 Using where; Start temporary; Using join buffer (flat, BNL join)
1 PRIMARY t3 ref a a 5 test.t2.a 10 End temporary
explain select straight_join * from t1 A, t1 B where A.a in (select a from t2);
id select_type table type possible_keys key key_len ref rows Extra
@ -1269,11 +1273,11 @@ insert into t1 select A.a, B.a, 'filler' from t0 A, t0 B;
create table t2 as select * from t1;
explain select * from t2 where a in (select b from t1 where a=3);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 range a a 5 NULL 8 Using where; Using index; LooseScan
1 PRIMARY t1 ref a a 5 const 8 Using index; LooseScan
1 PRIMARY t2 ALL NULL NULL NULL NULL 100 Using where; Using join buffer (flat, BNL join)
explain select * from t2 where (b,a) in (select a,b from t1 where a=3);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 range a a 5 NULL 8 Using where; Using index; LooseScan
1 PRIMARY t1 ref a a 5 const 8 Using index; LooseScan
1 PRIMARY t2 ALL NULL NULL NULL NULL 100 Using where; Using join buffer (flat, BNL join)
drop table t1,t2;
set @@optimizer_switch=@save_optimizer_switch;
@ -1284,16 +1288,16 @@ insert into t2 select A.a + 10*B.a, A.a + 10*B.a from t0 A, t0 B;
set @@optimizer_switch='firstmatch=off,materialization=off';
explain select * from t1 where (a,b) in (select a,b from t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 10 Start temporary
1 PRIMARY t2 ALL NULL NULL NULL NULL 100 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t1 ALL NULL NULL NULL NULL 10
1 PRIMARY t2 ALL NULL NULL NULL NULL 100 Using where; Start temporary; End temporary; Using join buffer (flat, BNL join)
set @save_optimizer_search_depth=@@optimizer_search_depth;
set @@optimizer_search_depth=63;
Warnings:
Warning 1287 'optimizer-search-depth=63' is deprecated and will be removed in a future release. Please use a search depth less than 63 instead
explain select * from t1 where (a,b) in (select a,b from t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 10 Start temporary
1 PRIMARY t2 ALL NULL NULL NULL NULL 100 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t1 ALL NULL NULL NULL NULL 10
1 PRIMARY t2 ALL NULL NULL NULL NULL 100 Using where; Start temporary; End temporary; Using join buffer (flat, BNL join)
set @@optimizer_search_depth=@save_optimizer_search_depth;
set @@optimizer_switch=@save_optimizer_switch;
drop table t0, t1, t2;
@ -1304,8 +1308,8 @@ create table t1 as select * from t0;
insert into t1 select * from t0;
explain select * from t0 where a in (select a from t1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t0 ALL NULL NULL NULL NULL 2 Start temporary
1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t0 ALL NULL NULL NULL NULL 2
1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Using where; FirstMatch(t0); Using join buffer (flat, BNL join)
select * from t0 where a in (select a from t1);
a
10.24
@ -1317,8 +1321,8 @@ create table t1 as select * from t0;
insert into t1 select * from t0;
explain select * from t0 where a in (select a from t1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t0 ALL NULL NULL NULL NULL 2 Start temporary
1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t0 ALL NULL NULL NULL NULL 2
1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Using where; FirstMatch(t0); Using join buffer (flat, BNL join)
select * from t0 where a in (select a from t1);
a
2008-01-01
@ -1331,10 +1335,10 @@ create table t2 as select a as a, a as b from t0 where a < 3;
insert into t2 select * from t2;
explain select * from t1 where (a,b,c) in (select X.a, Y.a, Z.a from t2 X, t2 Y, t2 Z where X.b=33);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 Start temporary
1 PRIMARY X ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join)
1 PRIMARY Y ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join)
1 PRIMARY Z ALL NULL NULL NULL NULL 6 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t1 ALL NULL NULL NULL NULL 3
1 PRIMARY X ALL NULL NULL NULL NULL 6 Using where
1 PRIMARY Y ALL NULL NULL NULL NULL 6 Using where
1 PRIMARY Z ALL NULL NULL NULL NULL 6 Using where; FirstMatch(t1)
drop table t0,t1,t2;
set @@optimizer_switch=@save_optimizer_switch;
@ -1471,7 +1475,7 @@ FROM t3
);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00
3 SUBQUERY t3 ALL NULL NULL NULL NULL 2 100.00
3 MATERIALIZED t3 ALL NULL NULL NULL NULL 2 100.00
2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where (not(<expr_cache><(select `test`.`t2`.`a` from `test`.`t2` where (`test`.`t2`.`a` = 9))>(<in_optimizer>((select `test`.`t2`.`a` from `test`.`t2` where (`test`.`t2`.`a` = 9)),(select `test`.`t2`.`a` from `test`.`t2` where (`test`.`t2`.`a` = 9)) in ( <materialize> (select `test`.`t3`.`b` from `test`.`t3` ), <primary_index_lookup>(9 in <temporary table> on distinct_key where ((9 = `<subquery3>`.`b`))))))))

74
mysql-test/r/subselect3_jcl6.result
View File

@ -7,9 +7,11 @@ set join_cache_level=6;
show variables like 'join_cache_level';
Variable_name Value
join_cache_level 6
set @join_cache_level_for_subselect3_test=@@join_cache_level;
drop table if exists t0, t1, t2, t3, t4, t5, t11, t12, t21, t22;
set @subselect3_tmp= @@optimizer_switch;
set optimizer_switch='semijoin=on,firstmatch=on,loosescan=on,semijoin_with_cache=on';
set join_cache_level=@join_cache_level_for_subselect3_test;
create table t1 (oref int, grp int, ie int) ;
insert into t1 (oref, grp, ie) values
(1, 1, 1),
@ -114,7 +116,7 @@ oref a
1 1
show status like '%Handler_read_rnd_next';
Variable_name Value
Handler_read_rnd_next 14
Handler_read_rnd_next 5
delete from t2;
insert into t2 values (NULL, 0),(NULL, 0), (NULL, 0), (NULL, 0);
set optimizer_switch='subquery_cache=off';
@ -1055,8 +1057,8 @@ explain
select (select max(Y.a) from t1 Y where a in (select a from t1 Z) and a < X.a) as subq from t1 X;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY X ALL NULL NULL NULL NULL 2
2 DEPENDENT SUBQUERY Y ALL NULL NULL NULL NULL 2 Using where; Start temporary
2 DEPENDENT SUBQUERY Z hash_ALL NULL #hash#$hj 5 test.Y.a 2 Using where; End temporary; Using join buffer (flat, BNLH join)
2 DEPENDENT SUBQUERY Y ALL NULL NULL NULL NULL 2 Using where
2 DEPENDENT SUBQUERY Z hash_ALL NULL #hash#$hj 5 test.Y.a 2 Using where; Start temporary; End temporary; Using join buffer (flat, BNLH join)
select (select max(Y.a) from t1 Y where a in (select a from t1 Z) and a < X.a) as subq from t1 X;
subq
NULL
@ -1126,12 +1128,15 @@ a
set @@optimizer_switch=@save_optimizer_switch;
set @@optimizer_switch=@save_optimizer_switch;
set @@optimizer_switch='materialization=off';
set @tmp_optimizer_switch=@@optimizer_switch;
set optimizer_switch='derived_merge=off,derived_with_keys=off';
explain select * from (select a from t0) X where a in (select a from t1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 11
1 PRIMARY t1 ALL NULL NULL NULL NULL 20 Using where; FirstMatch(<derived2>); Using join buffer (flat, BNL join)
2 DERIVED t0 ALL NULL NULL NULL NULL 11
drop table t0, t1;
set optimizer_switch=@tmp_optimizer_switch;
create table t0 (a int);
insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
create table t1 (kp1 int, kp2 int, c int, filler char(100), key(kp1, kp2));
@ -1141,8 +1146,8 @@ create table t3 (a int);
insert into t3 select A.a + 10*B.a from t0 A, t0 B;
explain select * from t3 where a in (select kp1 from t1 where kp1<20);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 100 Using where
1 PRIMARY t1 ref kp1 kp1 5 test.t3.a 1 Using index; FirstMatch(t3)
1 PRIMARY t1 range kp1 kp1 5 NULL 48 Using where; Using index; LooseScan
1 PRIMARY t3 ALL NULL NULL NULL NULL 100 Using where; Using join buffer (flat, BNL join)
create table t4 (pk int primary key);
insert into t4 select a from t3;
explain select * from t3 where a in (select t1.kp1 from t1,t4 where kp1<20
@ -1184,7 +1189,7 @@ explain select * from t3 where a in (select a from t2) and (a > 5 or a < 10);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 2
1 PRIMARY t3 ref a a 5 test.t2.a 1 Using join buffer (flat, BKA join); Key-ordered Rowid-ordered scan
2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 Using where
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 Using where
select * from t3 where a in (select a from t2);
a filler
1 filler
@ -1200,27 +1205,27 @@ insert into t3 select * from t1;
insert into t3 values (1),(2);
explain select * from t2 where a in (select a from t1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where; Start temporary
1 PRIMARY t1 hash_ALL NULL #hash#$hj 4 test.t2.a 4 Using where; End temporary; Using join buffer (flat, BNLH join)
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where
1 PRIMARY t1 hash_ALL NULL #hash#$hj 4 test.t2.a 4 Using where; Start temporary; End temporary; Using join buffer (flat, BNLH join)
explain select * from t2 where a in (select a from t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where; Start temporary
1 PRIMARY t2 hash_ALL NULL #hash#$hj 5 test.t2.a 2 Using where; End temporary; Using join buffer (flat, BNLH join)
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where
1 PRIMARY t2 hash_ALL NULL #hash#$hj 5 test.t2.a 2 Using where; Start temporary; End temporary; Using join buffer (flat, BNLH join)
explain select * from t2 where a in (select a from t3);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Start temporary
1 PRIMARY t3 ALL NULL NULL NULL NULL 6 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t2 ALL NULL NULL NULL NULL 2
1 PRIMARY t3 ALL NULL NULL NULL NULL 6 Using where; Start temporary; End temporary; Using join buffer (flat, BNL join)
explain select * from t1 where a in (select a from t3);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Start temporary
1 PRIMARY t3 ALL NULL NULL NULL NULL 6 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t1 ALL NULL NULL NULL NULL 4
1 PRIMARY t3 ALL NULL NULL NULL NULL 6 Using where; Start temporary; End temporary; Using join buffer (flat, BNL join)
drop table t1, t2, t3;
create table t1 (a decimal);
insert into t1 values (1),(2);
explain select * from t1 where a in (select a from t1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where; Start temporary
1 PRIMARY t1 hash_ALL NULL #hash#$hj 6 test.t1.a 2 Using where; End temporary; Using join buffer (flat, BNLH join)
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where
1 PRIMARY t1 hash_ALL NULL #hash#$hj 6 test.t1.a 2 Using where; Start temporary; End temporary; Using join buffer (flat, BNLH join)
drop table t1;
set @@optimizer_switch=@save_optimizer_switch;
set @@optimizer_switch=@save_optimizer_switch;
@ -1232,8 +1237,8 @@ create table t3 (a int, b int, filler char(100), key(a));
insert into t3 select A.a + 10*B.a, A.a + 10*B.a, 'filler' from t1 A, t1 B, t1 C;
explain select * from t1, t3 where t3.a in (select a from t2) and (t3.a < 10 or t3.a >30) and t1.a =3;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 10 Using where; Start temporary
1 PRIMARY t2 ALL NULL NULL NULL NULL 10 Using where; Using join buffer (flat, BNL join)
1 PRIMARY t1 ALL NULL NULL NULL NULL 10 Using where
1 PRIMARY t2 ALL NULL NULL NULL NULL 10 Using where; Start temporary; Using join buffer (flat, BNL join)
1 PRIMARY t3 ref a a 5 test.t2.a 10 End temporary; Using join buffer (incremental, BKA join); Key-ordered Rowid-ordered scan
explain select straight_join * from t1 A, t1 B where A.a in (select a from t2);
id select_type table type possible_keys key key_len ref rows Extra
@ -1278,11 +1283,11 @@ insert into t1 select A.a, B.a, 'filler' from t0 A, t0 B;
create table t2 as select * from t1;
explain select * from t2 where a in (select b from t1 where a=3);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 range a a 5 NULL 8 Using where; Using index; LooseScan
1 PRIMARY t1 ref a a 5 const 8 Using index; LooseScan
1 PRIMARY t2 ALL NULL NULL NULL NULL 100 Using where; Using join buffer (flat, BNL join)
explain select * from t2 where (b,a) in (select a,b from t1 where a=3);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 range a a 5 NULL 8 Using where; Using index; LooseScan
1 PRIMARY t1 ref a a 5 const 8 Using index; LooseScan
1 PRIMARY t2 ALL NULL NULL NULL NULL 100 Using where; Using join buffer (flat, BNL join)
drop table t1,t2;
set @@optimizer_switch=@save_optimizer_switch;
@ -1293,16 +1298,16 @@ insert into t2 select A.a + 10*B.a, A.a + 10*B.a from t0 A, t0 B;
set @@optimizer_switch='firstmatch=off,materialization=off';
explain select * from t1 where (a,b) in (select a,b from t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 10 Using where; Start temporary
1 PRIMARY t2 hash_ALL NULL #hash#$hj 10 test.t1.a,test.t1.b 100 Using where; End temporary; Using join buffer (flat, BNLH join)
1 PRIMARY t1 ALL NULL NULL NULL NULL 10 Using where
1 PRIMARY t2 hash_ALL NULL #hash#$hj 10 test.t1.a,test.t1.b 100 Using where; Start temporary; End temporary; Using join buffer (flat, BNLH join)
set @save_optimizer_search_depth=@@optimizer_search_depth;
set @@optimizer_search_depth=63;
Warnings:
Warning 1287 'optimizer-search-depth=63' is deprecated and will be removed in a future release. Please use a search depth less than 63 instead
explain select * from t1 where (a,b) in (select a,b from t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 10 Using where; Start temporary
1 PRIMARY t2 hash_ALL NULL #hash#$hj 10 test.t1.a,test.t1.b 100 Using where; End temporary; Using join buffer (flat, BNLH join)
1 PRIMARY t1 ALL NULL NULL NULL NULL 10 Using where
1 PRIMARY t2 hash_ALL NULL #hash#$hj 10 test.t1.a,test.t1.b 100 Using where; Start temporary; End temporary; Using join buffer (flat, BNLH join)
set @@optimizer_search_depth=@save_optimizer_search_depth;
set @@optimizer_switch=@save_optimizer_switch;
drop table t0, t1, t2;
@ -1313,8 +1318,8 @@ create table t1 as select * from t0;
insert into t1 select * from t0;
explain select * from t0 where a in (select a from t1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t0 ALL NULL NULL NULL NULL 2 Using where; Start temporary
1 PRIMARY t1 hash_ALL NULL #hash#$hj 3 test.t0.a 4 Using where; End temporary; Using join buffer (flat, BNLH join)
1 PRIMARY t0 ALL NULL NULL NULL NULL 2
1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Using where; FirstMatch(t0); Using join buffer (flat, BNL join)
select * from t0 where a in (select a from t1);
a
10.24
@ -1326,8 +1331,8 @@ create table t1 as select * from t0;
insert into t1 select * from t0;
explain select * from t0 where a in (select a from t1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t0 ALL NULL NULL NULL NULL 2 Using where; Start temporary
1 PRIMARY t1 hash_ALL NULL #hash#$hj 4 test.t0.a 4 Using where; End temporary; Using join buffer (flat, BNLH join)
1 PRIMARY t0 ALL NULL NULL NULL NULL 2
1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Using where; FirstMatch(t0); Using join buffer (flat, BNL join)
select * from t0 where a in (select a from t1);
a
2008-01-01
@ -1340,10 +1345,10 @@ create table t2 as select a as a, a as b from t0 where a < 3;
insert into t2 select * from t2;
explain select * from t1 where (a,b,c) in (select X.a, Y.a, Z.a from t2 X, t2 Y, t2 Z where X.b=33);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 Using where; Start temporary
1 PRIMARY X hash_ALL NULL #hash#$hj 5 test.t1.a 6 Using where; Using join buffer (flat, BNLH join)
1 PRIMARY Y hash_ALL NULL #hash#$hj 5 test.t1.b 6 Using where; Using join buffer (incremental, BNLH join)
1 PRIMARY Z hash_ALL NULL #hash#$hj 5 test.t1.c 6 Using where; End temporary; Using join buffer (incremental, BNLH join)
1 PRIMARY t1 ALL NULL NULL NULL NULL 3
1 PRIMARY X ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join)
1 PRIMARY Y ALL NULL NULL NULL NULL 6 Using where; Using join buffer (incremental, BNL join)
1 PRIMARY Z ALL NULL NULL NULL NULL 6 Using where; FirstMatch(t1); Using join buffer (incremental, BNL join)
drop table t0,t1,t2;
set @@optimizer_switch=@save_optimizer_switch;
@ -1480,7 +1485,7 @@ FROM t3
);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00
3 SUBQUERY t3 ALL NULL NULL NULL NULL 2 100.00
3 MATERIALIZED t3 ALL NULL NULL NULL NULL 2 100.00
2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where (not(<expr_cache><(select `test`.`t2`.`a` from `test`.`t2` where (`test`.`t2`.`a` = 9))>(<in_optimizer>((select `test`.`t2`.`a` from `test`.`t2` where (`test`.`t2`.`a` = 9)),(select `test`.`t2`.`a` from `test`.`t2` where (`test`.`t2`.`a` = 9)) in ( <materialize> (select `test`.`t3`.`b` from `test`.`t3` ), <primary_index_lookup>(9 in <temporary table> on distinct_key where ((9 = `<subquery3>`.`b`))))))))
@ -1550,5 +1555,6 @@ set @@optimizer_switch=@subselect3_tmp;
set join_cache_level=default;
show variables like 'join_cache_level';
Variable_name Value
join_cache_level 1
join_cache_level 2
set @@optimizer_switch=@save_optimizer_switch;
set @join_cache_level_for_subselect3_test=NULL;

182
mysql-test/r/subselect4.result
View File

@ -342,8 +342,8 @@ WHERE PTYPE = 'Design'));
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL t1_IDX NULL NULL NULL 5
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 3 func 1
2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 Using where
2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where
2 MATERIALIZED t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
PREPARE stmt FROM "EXPLAIN SELECT EMPNAME
FROM t1
WHERE EMPNUM IN
@ -357,14 +357,14 @@ EXECUTE stmt;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL t1_IDX NULL NULL NULL 5
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 3 func 1
2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 Using where
2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where
2 MATERIALIZED t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
EXECUTE stmt;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL t1_IDX NULL NULL NULL 5
1 SIMPLE <subquery2> eq_ref distinct_key distinct_key 3 func 1
2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 Using where
2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where
2 MATERIALIZED t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
DEALLOCATE PREPARE stmt;
DROP INDEX t1_IDX ON t1;
CREATE INDEX t1_IDX ON t1(EMPNUM);
@ -380,8 +380,8 @@ WHERE PTYPE = 'Design'));
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL t1_IDX NULL NULL NULL 5
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 3 func 1
2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 Using where
2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where
2 MATERIALIZED t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
PREPARE stmt FROM "EXPLAIN SELECT EMPNAME
FROM t1
WHERE EMPNUM IN
@ -395,14 +395,14 @@ EXECUTE stmt;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL t1_IDX NULL NULL NULL 5
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 3 func 1
2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 Using where
2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where
2 MATERIALIZED t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
EXECUTE stmt;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL t1_IDX NULL NULL NULL 5
1 SIMPLE <subquery2> eq_ref distinct_key distinct_key 3 func 1
2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 Using where
2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where
2 MATERIALIZED t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
DEALLOCATE PREPARE stmt;
DROP INDEX t1_IDX ON t1;
EXPLAIN SELECT EMPNAME
@ -417,8 +417,8 @@ WHERE PTYPE = 'Design'));
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 5
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 3 func 1
2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 Using where
2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where
2 MATERIALIZED t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
PREPARE stmt FROM "EXPLAIN SELECT EMPNAME
FROM t1
WHERE EMPNUM IN
@ -432,14 +432,14 @@ EXECUTE stmt;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 5
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 3 func 1
2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 Using where
2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where
2 MATERIALIZED t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
EXECUTE stmt;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 5
1 SIMPLE <subquery2> eq_ref distinct_key distinct_key 3 func 1
2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 Using where
2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where
2 MATERIALIZED t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
DEALLOCATE PREPARE stmt;
SET SESSION optimizer_switch = @old_optimizer_switch;
SET SESSION join_cache_level = @old_join_cache_level;
@ -562,10 +562,10 @@ WHERE f3 = (
SELECT t1.f3 FROM t1
WHERE ( t1.f10 ) IN ( SELECT f11 FROM t2 GROUP BY f11 ));
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ref f3 f3 5 const 0 Using index condition
2 SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using where
2 SUBQUERY <subquery3> eq_ref distinct_key distinct_key 5 test.t1.f10 1
3 SUBQUERY t2 ALL NULL NULL NULL NULL 2 Using temporary
1 PRIMARY t1 ref f3 f3 5 const 0 Using where
2 SUBQUERY t1 ALL NULL NULL NULL NULL 2
2 SUBQUERY <subquery3> eq_ref distinct_key distinct_key 5 func 1
3 MATERIALIZED t2 ALL NULL NULL NULL NULL 2
SELECT * FROM t1
WHERE f3 = (
SELECT t1.f3 FROM t1
@ -577,15 +577,44 @@ WHERE f3 = (
SELECT f3 FROM t1
WHERE ( f10, f10 ) IN ( SELECT f11, f11 FROM t2 GROUP BY f11 ));
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ref f3 f3 5 const 0 Using index condition
2 SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using where
2 SUBQUERY <subquery3> eq_ref distinct_key distinct_key 10 test.t1.f10,test.t1.f10 1
3 SUBQUERY t2 ALL NULL NULL NULL NULL 2 Using temporary
1 PRIMARY t1 ref f3 f3 5 const 0 Using where
2 SUBQUERY t1 ALL NULL NULL NULL NULL 2
2 SUBQUERY <subquery3> eq_ref distinct_key distinct_key 10 func,func 1
3 MATERIALIZED t2 ALL NULL NULL NULL NULL 2
SELECT * FROM t1
WHERE f3 = (
SELECT f3 FROM t1
WHERE ( f10, f10 ) IN ( SELECT f11, f11 FROM t2 GROUP BY f11 ));
f1 f3 f10
SET @@optimizer_switch = 'materialization=on,in_to_exists=off,semijoin=off';
EXPLAIN
SELECT * FROM t1
WHERE f3 = (
SELECT t1.f3 FROM t1
WHERE ( t1.f10 ) IN ( SELECT max(f11) FROM t2 GROUP BY f11 ));
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ref f3 f3 5 const 0 Using where
2 SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using where
3 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 Using temporary
SELECT * FROM t1
WHERE f3 = (
SELECT t1.f3 FROM t1
WHERE ( t1.f10 ) IN ( SELECT max(f11) FROM t2 GROUP BY f11 ));
f1 f3 f10
EXPLAIN
SELECT * FROM t1
WHERE f3 = (
SELECT f3 FROM t1
WHERE ( f10, f10 ) IN ( SELECT max(f11), f11 FROM t2 GROUP BY f11 ));
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ref f3 f3 5 const 0 Using where
2 SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using where
3 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 Using temporary
SELECT * FROM t1
WHERE f3 = (
SELECT f3 FROM t1
WHERE ( f10, f10 ) IN ( SELECT max(f11), f11 FROM t2 GROUP BY f11 ));
f1 f3 f10
SET SESSION optimizer_switch = @old_optimizer_switch;
drop table t1,t2;
#
@ -599,21 +628,21 @@ EXPLAIN
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, min(f4) FROM t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
2 SUBQUERY t2 system NULL NULL NULL NULL 0 const row not found
2 MATERIALIZED t2 system NULL NULL NULL NULL 0 const row not found
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, min(f4) FROM t2);
f1 f2
EXPLAIN
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3+f4, min(f4) FROM t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
2 SUBQUERY t2 system NULL NULL NULL NULL 0 const row not found
2 MATERIALIZED t2 system NULL NULL NULL NULL 0 const row not found
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3+f4, min(f4) FROM t2);
f1 f2
EXPLAIN
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, min(f4)+max(f4) FROM t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
2 SUBQUERY t2 system NULL NULL NULL NULL 0 const row not found
2 MATERIALIZED t2 system NULL NULL NULL NULL 0 const row not found
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, min(f4)+max(f4) FROM t2);
f1 f2
EXPLAIN
@ -628,14 +657,14 @@ EXPLAIN
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, count(f4) FROM t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
2 SUBQUERY t2 system NULL NULL NULL NULL 0 const row not found
2 MATERIALIZED t2 system NULL NULL NULL NULL 0 const row not found
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, count(f4) FROM t2);
f1 f2
EXPLAIN
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, f3 + count(f4) FROM t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
2 SUBQUERY t2 system NULL NULL NULL NULL 0 const row not found
2 MATERIALIZED t2 system NULL NULL NULL NULL 0 const row not found
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, f3 + count(f4) FROM t2);
f1 f2
EXPLAIN
@ -785,21 +814,21 @@ EXPLAIN
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, min(f4) FROM t2 WHERE f3 > 10);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2
2 SUBQUERY t2 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan
2 MATERIALIZED t2 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, min(f4) FROM t2 WHERE f3 > 10);
f1 f2
EXPLAIN
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3+f4, min(f4) FROM t2 WHERE f3 > 10);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2
2 SUBQUERY t2 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan
2 MATERIALIZED t2 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3+f4, min(f4) FROM t2 WHERE f3 > 10);
f1 f2
EXPLAIN
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, min(f4)+max(f4) FROM t2 WHERE f3 > 10);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2
2 SUBQUERY t2 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan
2 MATERIALIZED t2 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, min(f4)+max(f4) FROM t2 WHERE f3 > 10);
f1 f2
EXPLAIN
@ -814,14 +843,14 @@ EXPLAIN
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, count(f4) FROM t2 WHERE f3 > 10);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2
2 SUBQUERY t2 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan
2 MATERIALIZED t2 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, count(f4) FROM t2 WHERE f3 > 10);
f1 f2
EXPLAIN
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, f3 + count(f4) FROM t2 WHERE f3 > 10);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2
2 SUBQUERY t2 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan
2 MATERIALIZED t2 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, f3 + count(f4) FROM t2 WHERE f3 > 10);
f1 f2
EXPLAIN
@ -1007,7 +1036,7 @@ WHERE (t2.pk = t1.pk) AND t2.pk IN (SELECT f2 FROM t1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 system PRIMARY NULL NULL NULL 1
1 PRIMARY t1 const PRIMARY PRIMARY 4 const 1
2 SUBQUERY t1 index NULL f2 4 NULL 2 Using index
2 MATERIALIZED t1 index NULL f2 4 NULL 2 Using index
SELECT t1.f3, MAX(t1.f2)
FROM t1, t2
WHERE (t2.pk = t1.pk) AND t2.pk IN (SELECT f2 FROM t1);
@ -1075,6 +1104,10 @@ CREATE TABLE t3 (c1 varchar(1) DEFAULT NULL);
INSERT INTO t3 VALUES ('a'), ('b'), ('c');
CREATE TABLE t4 (c1 varchar(1) primary key);
INSERT INTO t4 VALUES ('k'), ('d');
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='outer_join_with_cache=off';
SET optimizer_switch='semijoin_with_cache=off';
SET optimizer_switch='materialization=off';
EXPLAIN
SELECT * FROM t1 RIGHT JOIN t2 ON t1.c1 WHERE 's' IN (SELECT c1 FROM t2);
id select_type table type possible_keys key key_len ref rows Extra
@ -1091,6 +1124,7 @@ id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using join buffer (flat, BNL join)
SELECT * FROM t2 LEFT JOIN t1 ON t1.c1 WHERE 's' IN (SELECT c1 FROM t2);
c1 c1
SET optimizer_switch='materialization=on';
EXPLAIN
SELECT * FROM (t2 LEFT JOIN t1 ON t1.c1) LEFT JOIN t3 on t3.c1 WHERE 's' IN (SELECT c1 FROM t2);
id select_type table type possible_keys key key_len ref rows Extra
@ -1098,7 +1132,7 @@ id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using join buffer (flat, BNL join)
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 Using where
2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 Using where
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 Using where
SELECT * FROM (t2 LEFT JOIN t1 ON t1.c1) LEFT JOIN t3 on t3.c1 WHERE 's' IN (SELECT c1 FROM t2);
c1 c1 c1
EXPLAIN
@ -1107,9 +1141,10 @@ id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
1 PRIMARY t4 index NULL PRIMARY 3 NULL 2 Using index; Using join buffer (flat, BNL join)
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where
2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 Using where
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 Using where
SELECT * FROM t4 LEFT JOIN t2 ON t4.c1 WHERE 's' IN (SELECT c1 FROM t2);
c1 c1
SET optimizer_switch=@save_optimizer_switch;
drop table t1, t2, t3, t4;
#
# LP BUG#675981 Assertion `cache != __null' failed in sub_select_cache()
@ -1177,7 +1212,7 @@ EXPLAIN
SELECT * FROM t1 WHERE
(SELECT f2 FROM t2
WHERE f4 <= ALL
(SELECT SQ1_t1.f4
(SELECT max(SQ1_t1.f4)
FROM t3 AS SQ1_t1 JOIN t3 AS SQ1_t3 ON SQ1_t3.f4
GROUP BY SQ1_t1.f4));
id select_type table type possible_keys key key_len ref rows Extra
@ -1383,7 +1418,7 @@ EXPLAIN
SELECT 'bug' FROM t3 WHERE ( 5 ) IN (SELECT * FROM v2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t3 system NULL NULL NULL NULL 1
2 SUBQUERY <derived3> ALL NULL NULL NULL NULL 2
2 MATERIALIZED <derived3> ALL NULL NULL NULL NULL 2
3 DERIVED t1 system NULL NULL NULL NULL 1
4 UNION t2 system NULL NULL NULL NULL 1
NULL UNION RESULT <union3,4> ALL NULL NULL NULL NULL NULL
@ -1469,72 +1504,73 @@ CREATE TABLE t2 (f1b int, f2b int not null, f3b varchar(3) not null, PRIMARY KEY
INSERT INTO t2 VALUES
(10,5,'d1d');
set @save_optimizer_switch=@@optimizer_switch;
set @@optimizer_switch = 'materialization=off';
SET optimizer_switch='outer_join_with_cache=off';
set @@optimizer_switch = 'in_to_exists=on,materialization=off,semijoin=off';
EXPLAIN
SELECT alias2.f1 , alias2.f2
FROM t0 AS alias1
RIGHT JOIN t0 AS alias2 ON alias2.f10
WHERE ( alias2.f1 , alias2.f2 ) IN ( SELECT f2 , f1 FROM t0 GROUP BY f2 , f1 );
WHERE ( alias2.f1 , alias2.f2 ) IN ( SELECT max(f2) , f1 FROM t0 GROUP BY f2 , f1 );
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY alias2 ALL NULL NULL NULL NULL 2 Using where
1 PRIMARY alias1 index NULL PRIMARY 4 NULL 2 Using where; Using index
2 DEPENDENT SUBQUERY t0 ALL NULL NULL NULL NULL 2
2 DEPENDENT SUBQUERY t0 ALL NULL NULL NULL NULL 2 Using temporary
SELECT alias2.f1 , alias2.f2
FROM t0 AS alias1
RIGHT JOIN t0 AS alias2 ON alias2.f10
WHERE ( alias2.f1 , alias2.f2 ) IN ( SELECT f2 , f1 FROM t0 GROUP BY f2 , f1 );
WHERE ( alias2.f1 , alias2.f2 ) IN ( SELECT max(f2) , f1 FROM t0 GROUP BY f2 , f1 );
f1 f2
8 8
Warnings:
Warning 1292 Truncated incorrect DOUBLE value: 'u'
EXPLAIN
SELECT * FROM t2 WHERE (f1b, f2b) IN (SELECT f1a, f2a FROM t1 GROUP BY f1a, f2a);
SELECT * FROM t2 WHERE (f1b, f2b) IN (SELECT max(f1a), f2a FROM t1 GROUP BY f1a, f2a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 system NULL NULL NULL NULL 1
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2
SELECT * FROM t2 WHERE (f1b, f2b) IN (SELECT f1a, f2a FROM t1 GROUP BY f1a, f2a);
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using temporary
SELECT * FROM t2 WHERE (f1b, f2b) IN (SELECT max(f1a), f2a FROM t1 GROUP BY f1a, f2a);
f1b f2b f3b
10 5 d1d
EXPLAIN
SELECT * FROM t2 WHERE (f1b) IN (SELECT f1a FROM t1 GROUP BY f1a, f2a);
SELECT * FROM t2 WHERE (f1b) IN (SELECT max(f1a) FROM t1 GROUP BY f1a, f2a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 system NULL NULL NULL NULL 1
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2
SELECT * FROM t2 WHERE (f1b) IN (SELECT f1a FROM t1 GROUP BY f1a, f2a);
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using temporary
SELECT * FROM t2 WHERE (f1b) IN (SELECT max(f1a) FROM t1 GROUP BY f1a, f2a);
f1b f2b f3b
10 5 d1d
SET @@optimizer_switch = 'materialization=on';
set @@optimizer_switch = 'in_to_exists=off,materialization=on,semijoin=off';
EXPLAIN
SELECT alias2.f1 , alias2.f2
FROM t0 AS alias1
RIGHT JOIN t0 AS alias2 ON alias2.f10
WHERE ( alias2.f1 , alias2.f2 ) IN ( SELECT f2 , f1 FROM t0 GROUP BY f2 , f1 );
WHERE ( alias2.f1 , alias2.f2 ) IN ( SELECT max(f2) , f1 FROM t0 GROUP BY f2 , f1 );
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY alias2 ALL NULL NULL NULL NULL 2 Using where
1 PRIMARY alias1 index NULL PRIMARY 4 NULL 2 Using where; Using index
2 SUBQUERY t0 ALL NULL NULL NULL NULL 2
2 MATERIALIZED t0 ALL NULL NULL NULL NULL 2 Using temporary
SELECT alias2.f1 , alias2.f2
FROM t0 AS alias1
RIGHT JOIN t0 AS alias2 ON alias2.f10
WHERE ( alias2.f1 , alias2.f2 ) IN ( SELECT f2 , f1 FROM t0 GROUP BY f2 , f1 );
WHERE ( alias2.f1 , alias2.f2 ) IN ( SELECT max(f2) , f1 FROM t0 GROUP BY f2 , f1 );
f1 f2
8 8
Warnings:
Warning 1292 Truncated incorrect DOUBLE value: 'u'
EXPLAIN
SELECT * FROM t2 WHERE (f1b, f2b) IN (SELECT f1a, f2a FROM t1 GROUP BY f1a, f2a);
SELECT * FROM t2 WHERE (f1b, f2b) IN (SELECT max(f1a), f2a FROM t1 GROUP BY f1a, f2a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 system NULL NULL NULL NULL 1
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2
SELECT * FROM t2 WHERE (f1b, f2b) IN (SELECT f1a, f2a FROM t1 GROUP BY f1a, f2a);
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 2 Using temporary
SELECT * FROM t2 WHERE (f1b, f2b) IN (SELECT max(f1a), f2a FROM t1 GROUP BY f1a, f2a);
f1b f2b f3b
10 5 d1d
EXPLAIN
SELECT * FROM t2 WHERE (f1b) IN (SELECT f1a FROM t1 GROUP BY f1a, f2a);
SELECT * FROM t2 WHERE (f1b) IN (SELECT max(f1a) FROM t1 GROUP BY f1a, f2a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 system NULL NULL NULL NULL 1
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2
SELECT * FROM t2 WHERE (f1b) IN (SELECT f1a FROM t1 GROUP BY f1a, f2a);
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 2 Using temporary
SELECT * FROM t2 WHERE (f1b) IN (SELECT max(f1a) FROM t1 GROUP BY f1a, f2a);
f1b f2b f3b
10 5 d1d
set @@optimizer_switch=@save_optimizer_switch;
@ -1619,7 +1655,7 @@ FROM t1));
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 system NULL NULL NULL NULL 1
2 SUBQUERY t3 ALL NULL NULL NULL NULL 2
3 SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using temporary
3 SUBQUERY t1 ALL NULL NULL NULL NULL 2
drop table t1, t2, t3;
#
# LP BUG#802979 Assertion `table->key_read == 0' in close_thread_table
@ -1639,10 +1675,10 @@ WHERE t2.f2 = (SELECT f2 FROM t3
WHERE EXISTS (SELECT DISTINCT f1 FROM t4))
AND t2.f2 = t1.f1;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ref f1 f1 5 const 0 Using index condition
1 PRIMARY t1 ref f1 f1 5 const 0 Using where
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join)
2 SUBQUERY t3 ALL NULL NULL NULL NULL 2
3 SUBQUERY t4 index NULL f1 5 NULL 2 Using index; Using temporary
3 SUBQUERY t4 index NULL f1 5 NULL 2 Using index
SELECT *
FROM t1, t2
WHERE t2.f2 = (SELECT f2 FROM t3
@ -1656,10 +1692,10 @@ WHERE t2.f2 = (SELECT f2 FROM t3
WHERE EXISTS (SELECT DISTINCT f1 FROM t4) LIMIT 1)
AND t2.f2 = t1.f1;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ref f1 f1 5 const 0 Using index condition
1 PRIMARY t1 ref f1 f1 5 const 0 Using where
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join)
2 SUBQUERY t3 ALL NULL NULL NULL NULL 2
3 SUBQUERY t4 index NULL f1 5 NULL 2 Using index; Using temporary
3 SUBQUERY t4 index NULL f1 5 NULL 2 Using index
SELECT *
FROM t1, t2
WHERE t2.f2 = (SELECT f2 FROM t3
@ -1687,7 +1723,7 @@ FROM t1));
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
2 SUBQUERY t4 ALL NULL NULL NULL NULL 2
3 SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using temporary
3 SUBQUERY t1 ALL NULL NULL NULL NULL 2
SELECT *
FROM t2, t3
WHERE t3.f1 = (
@ -1733,7 +1769,7 @@ id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 index NULL col_int_key 5 NULL 2 Using index
2 SUBQUERY SUBQUERY2_t1 index NULL col_int_key 5 NULL 2 Using index
2 SUBQUERY SUBQUERY2_t2 ALL col_varchar_key NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join)
3 SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using temporary
3 MATERIALIZED t1 ALL NULL NULL NULL NULL 2
SELECT col_int_key
FROM t2
WHERE (SELECT SUBQUERY2_t1.col_int_key
@ -1758,7 +1794,7 @@ id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 index NULL col_int_key 5 NULL 2 Using index
2 SUBQUERY SUBQUERY2_t1 index NULL col_int_key 5 NULL 2 Using index
2 SUBQUERY SUBQUERY2_t2 ALL col_varchar_key NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join)
3 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using temporary
3 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using where
SELECT col_int_key
FROM t2
WHERE (SELECT SUBQUERY2_t1.col_int_key
@ -1786,7 +1822,7 @@ EXPLAIN SELECT * FROM t1 JOIN v2 ON t1.f2 > 'a' WHERE v2.f3 IN ( SELECT f2 FROM
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join)
2 SUBQUERY t1 ALL NULL NULL NULL NULL 2
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 2
PREPARE st1 FROM "SELECT * FROM t1 JOIN v2 ON t1.f2 > 'a' WHERE v2.f3 IN ( SELECT f2 FROM t1 )";
EXECUTE st1;
f1 f2 f3
@ -1816,7 +1852,7 @@ EXPLAIN SELECT * FROM t1 JOIN v2 ON t1.f2 > 'a' WHERE v2.f3 IN ( SELECT f2 FROM
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join)
2 SUBQUERY t1 ALL NULL NULL NULL NULL 2
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 2
PREPARE st3 FROM "SELECT * FROM t1 JOIN v2 ON t1.f2 > 'a' WHERE v2.f3 IN ( SELECT f2 FROM t1 )";
EXECUTE st3;
f1 f2 f3
@ -1848,7 +1884,7 @@ id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t3 system NULL NULL NULL NULL 1 Using temporary; Using filesort
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where
2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
3 SUBQUERY t1 system NULL NULL NULL NULL 0 const row not found
3 MATERIALIZED t1 system NULL NULL NULL NULL 0 const row not found
PREPARE st1 FROM "
SELECT t2.f1, (SELECT f2 FROM t1 WHERE (7) IN (SELECT f1 FROM t1))
FROM t2 JOIN t3 ON t3.f4 = t2.f4
@ -1880,7 +1916,7 @@ id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1
1 PRIMARY t3 system NULL NULL NULL NULL 1
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where
2 SUBQUERY t2 ALL NULL NULL NULL NULL 2
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2
SELECT t1.f4
FROM t1 JOIN ( t2 JOIN t3 ON t3.f3 = t2.f4 ) ON t3.f3 = t2.f3
WHERE t1.f4 IN ( SELECT f4 FROM t2 ) ;

71
mysql-test/r/subselect_cache.result
View File

@ -1,5 +1,8 @@
drop table if exists t0,t1,t2,t3,t4,t5,t6,t7,t8,t9;
drop view if exists v1;
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='outer_join_with_cache=off';
SET optimizer_switch='semijoin_with_cache=off';
set optimizer_switch='subquery_cache=on';
create table t1 (a int, b int);
insert into t1 values (1,2),(3,4),(1,2),(3,4),(3,4),(4,5),(4,5),(5,6),(5,6),(4,5);
@ -1836,7 +1839,7 @@ set optimizer_switch='default,semijoin=off,materialization=on,subquery_cache=on'
explain select * from t1 where a in (select pk from t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 15 Using where
2 SUBQUERY t2 ALL NULL NULL NULL NULL 10
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 10
flush status;
select * from t1 where a in (select pk from t2);
a b
@ -3398,71 +3401,6 @@ WHERE table3 .`col_varchar_key` IN (
SELECT `col_varchar_key`
FROM t2 ) AND table1 .`col_varchar_key` OR table1 .`pk` ;
col_varchar_nokey
Warnings:
Warning 1292 Truncated incorrect DOUBLE value: 'w'
Warning 1292 Truncated incorrect DOUBLE value: 'm'
Warning 1292 Truncated incorrect DOUBLE value: 'm'
Warning 1292 Truncated incorrect DOUBLE value: 'k'
Warning 1292 Truncated incorrect DOUBLE value: 'r'
Warning 1292 Truncated incorrect DOUBLE value: 't'
Warning 1292 Truncated incorrect DOUBLE value: 'j'
Warning 1292 Truncated incorrect DOUBLE value: 'u'
Warning 1292 Truncated incorrect DOUBLE value: 'h'
Warning 1292 Truncated incorrect DOUBLE value: 'o'
Warning 1292 Truncated incorrect DOUBLE value: 'k'
Warning 1292 Truncated incorrect DOUBLE value: 'e'
Warning 1292 Truncated incorrect DOUBLE value: 'n'
Warning 1292 Truncated incorrect DOUBLE value: 't'
Warning 1292 Truncated incorrect DOUBLE value: 'c'
Warning 1292 Truncated incorrect DOUBLE value: 'm'
Warning 1292 Truncated incorrect DOUBLE value: 'y'
Warning 1292 Truncated incorrect DOUBLE value: 'f'
Warning 1292 Truncated incorrect DOUBLE value: 'd'
Warning 1292 Truncated incorrect DOUBLE value: 'v'
Warning 1292 Truncated incorrect DOUBLE value: 'r'
Warning 1292 Truncated incorrect DOUBLE value: 'a'
Warning 1292 Truncated incorrect DOUBLE value: 'm'
Warning 1292 Truncated incorrect DOUBLE value: 'y'
Warning 1292 Truncated incorrect DOUBLE value: 'j'
Warning 1292 Truncated incorrect DOUBLE value: 'd'
Warning 1292 Truncated incorrect DOUBLE value: 'z'
Warning 1292 Truncated incorrect DOUBLE value: 'e'
Warning 1292 Truncated incorrect DOUBLE value: 'h'
Warning 1292 Truncated incorrect DOUBLE value: 'b'
Warning 1292 Truncated incorrect DOUBLE value: 's'
Warning 1292 Truncated incorrect DOUBLE value: 'e'
Warning 1292 Truncated incorrect DOUBLE value: 'j'
Warning 1292 Truncated incorrect DOUBLE value: 'e'
Warning 1292 Truncated incorrect DOUBLE value: 'f'
Warning 1292 Truncated incorrect DOUBLE value: 'v'
Warning 1292 Truncated incorrect DOUBLE value: 'x'
Warning 1292 Truncated incorrect DOUBLE value: 'm'
Warning 1292 Truncated incorrect DOUBLE value: 'c'
Warning 1292 Truncated incorrect DOUBLE value: 'w'
Warning 1292 Truncated incorrect DOUBLE value: 'm'
Warning 1292 Truncated incorrect DOUBLE value: 'm'
Warning 1292 Truncated incorrect DOUBLE value: 'k'
Warning 1292 Truncated incorrect DOUBLE value: 'r'
Warning 1292 Truncated incorrect DOUBLE value: 't'
Warning 1292 Truncated incorrect DOUBLE value: 'j'
Warning 1292 Truncated incorrect DOUBLE value: 'u'
Warning 1292 Truncated incorrect DOUBLE value: 'h'
Warning 1292 Truncated incorrect DOUBLE value: 'o'
Warning 1292 Truncated incorrect DOUBLE value: 'k'
Warning 1292 Truncated incorrect DOUBLE value: 'e'
Warning 1292 Truncated incorrect DOUBLE value: 'n'
Warning 1292 Truncated incorrect DOUBLE value: 't'
Warning 1292 Truncated incorrect DOUBLE value: 'c'
Warning 1292 Truncated incorrect DOUBLE value: 'm'
Warning 1292 Truncated incorrect DOUBLE value: 'y'
Warning 1292 Truncated incorrect DOUBLE value: 'f'
Warning 1292 Truncated incorrect DOUBLE value: 'd'
Warning 1292 Truncated incorrect DOUBLE value: 'w'
Warning 1292 Truncated incorrect DOUBLE value: 'm'
Warning 1292 Truncated incorrect DOUBLE value: 'm'
Warning 1292 Truncated incorrect DOUBLE value: 'k'
Warning 1292 Truncated incorrect DOUBLE value: 'r'
Warning 1292 Truncated incorrect DOUBLE value: 't'
drop table t1,t2;
set @@optimizer_switch= default;
set optimizer_switch='subquery_cache=on';
@ -3573,5 +3511,6 @@ pk b
29 3
drop view v1;
drop table t1,t2,t3,t4;
SET optimizer_switch=@save_optimizer_switch;
# restore default
set @@optimizer_switch= default;

23
mysql-test/r/subselect_extra.result
View File

@ -15,16 +15,16 @@ insert into t2 values ('2001-01-01 1:1:1'), ('2001-01-01 1:1:1');
flush tables;
EXPLAIN SELECT OUTR.dt FROM t1 AS OUTR WHERE OUTR.dt IN (SELECT INNR.dt FROM t2 AS INNR WHERE OUTR.dt IS NULL );
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY OUTR ALL NULL NULL NULL NULL 2 Using where; Start temporary
1 PRIMARY INNR ALL NULL NULL NULL NULL 2 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY OUTR ALL NULL NULL NULL NULL 2 Using where
1 PRIMARY INNR ALL NULL NULL NULL NULL 2 Using where; FirstMatch(OUTR); Using join buffer (flat, BNL join)
flush tables;
SELECT OUTR.dt FROM t1 AS OUTR WHERE OUTR.dt IN (SELECT INNR.dt FROM t2 AS INNR WHERE OUTR.dt IS NULL );
dt
flush tables;
EXPLAIN SELECT OUTR.dt FROM t1 AS OUTR WHERE OUTR.dt IN ( SELECT INNR.dt FROM t2 AS INNR WHERE OUTR.t < '2005-11-13 7:41:31' );
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY OUTR ALL NULL NULL NULL NULL 2 Using where; Start temporary
1 PRIMARY INNR ALL NULL NULL NULL NULL 2 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY OUTR ALL NULL NULL NULL NULL 2 Using where
1 PRIMARY INNR ALL NULL NULL NULL NULL 2 Using where; FirstMatch(OUTR); Using join buffer (flat, BNL join)
flush tables;
SELECT OUTR.dt FROM t1 AS OUTR WHERE OUTR.dt IN ( SELECT INNR.dt FROM t2 AS INNR WHERE OUTR.t < '2005-11-13 7:41:31' );
dt
@ -67,8 +67,8 @@ explain extended
select * from t1
where id in (select id from t1 as x1 where (t1.cur_date is null));
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00 Using where; Start temporary
1 PRIMARY x1 ALL NULL NULL NULL NULL 2 100.00 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00 Using where
1 PRIMARY x1 ALL NULL NULL NULL NULL 2 100.00 Using where; FirstMatch(t1); Using join buffer (flat, BNL join)
Warnings:
Note 1276 Field or reference 'test.t1.cur_date' of SELECT #2 was resolved in SELECT #1
Note 1003 select `test`.`t1`.`id` AS `id`,`test`.`t1`.`cur_date` AS `cur_date` from `test`.`t1` semi join (`test`.`t1` `x1`) where ((`test`.`x1`.`id` = `test`.`t1`.`id`) and (`test`.`t1`.`cur_date` = 0))
@ -79,8 +79,8 @@ explain extended
select * from t2
where id in (select id from t2 as x1 where (t2.cur_date is null));
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 100.00 Using where; Start temporary
1 PRIMARY x1 ALL NULL NULL NULL NULL 2 100.00 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 100.00 Using where
1 PRIMARY x1 ALL NULL NULL NULL NULL 2 100.00 Using where; FirstMatch(t2); Using join buffer (flat, BNL join)
Warnings:
Note 1276 Field or reference 'test.t2.cur_date' of SELECT #2 was resolved in SELECT #1
Note 1003 select `test`.`t2`.`id` AS `id`,`test`.`t2`.`cur_date` AS `cur_date` from `test`.`t2` semi join (`test`.`t2` `x1`) where ((`test`.`x1`.`id` = `test`.`t2`.`id`) and (`test`.`t2`.`cur_date` = 0))
@ -308,7 +308,7 @@ EXPLAIN SELECT 1 FROM t1 WHERE a IN
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 index PRIMARY,i2 PRIMARY 4 NULL 144 Using index
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
2 SUBQUERY t1 ALL NULL NULL NULL NULL 144
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 144
CREATE TABLE t2 (a INT, b INT, KEY(a));
INSERT INTO t2 VALUES (1, 1), (2, 2), (3,3), (4,4);
EXPLAIN SELECT a, SUM(b) FROM t2 GROUP BY a LIMIT 2;
@ -321,7 +321,8 @@ EXPLAIN SELECT 1 FROM t2 WHERE a IN
(SELECT a FROM t1 USE INDEX (i2) IGNORE INDEX (i2));
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 index a a 5 NULL 4 Using index
1 PRIMARY t1 ALL NULL NULL NULL NULL 144 Using where; FirstMatch(t2); Using join buffer (flat, BNL join)
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 144
DROP TABLE t1, t2;
#
# From derived_view.test
@ -432,7 +433,7 @@ WHERE t2.c = v1.c AND t2.c = v1.b AND v1.b = t3.c);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 system NULL NULL NULL NULL 1
1 PRIMARY t3 ALL NULL NULL NULL NULL 2 Using where
1 PRIMARY <derived3> ALL NULL NULL NULL NULL 3 Using where; Start temporary; End temporary
1 PRIMARY <derived3> ALL NULL NULL NULL NULL 3 Using where; FirstMatch(t3); Using join buffer (flat, BNL join)
3 DERIVED t1 ALL NULL NULL NULL NULL 3
SELECT * FROM t3
WHERE t3.b IN (SELECT v1.b FROM v1, t2

8
mysql-test/r/subselect_extra_no_semijoin.result
View File

@ -311,7 +311,7 @@ EXPLAIN SELECT 1 FROM t1 WHERE a IN
(SELECT a FROM t1 USE INDEX (i2) IGNORE INDEX (i2));
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 index NULL PRIMARY 4 NULL 144 Using where; Using index
2 SUBQUERY t1 ALL NULL NULL NULL NULL 144
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 144
CREATE TABLE t2 (a INT, b INT, KEY(a));
INSERT INTO t2 VALUES (1, 1), (2, 2), (3,3), (4,4);
EXPLAIN SELECT a, SUM(b) FROM t2 GROUP BY a LIMIT 2;
@ -324,7 +324,7 @@ EXPLAIN SELECT 1 FROM t2 WHERE a IN
(SELECT a FROM t1 USE INDEX (i2) IGNORE INDEX (i2));
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 index NULL a 5 NULL 4 Using where; Using index
2 SUBQUERY t1 ALL NULL NULL NULL NULL 144
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 144
DROP TABLE t1, t2;
#
# From derived_view.test
@ -349,7 +349,7 @@ WHERE t.a IN (SELECT b FROM t1);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1 100.00
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 100.00 Using where
3 SUBQUERY t1 system NULL NULL NULL NULL 1 100.00
3 MATERIALIZED t1 system NULL NULL NULL NULL 1 100.00
Warnings:
Note 1003 select `test`.`t2`.`a` AS `a`,0 AS `a`,0 AS `b` from `test`.`t2` where <expr_cache><0>(<in_optimizer>(0,0 in ( <materialize> (select 0 from dual ), <primary_index_lookup>(0 in <temporary table> on distinct_key where ((0 = `<subquery3>`.`b`))))))
SELECT * FROM t2 RIGHT JOIN v1 AS t ON t.a != 0
@ -362,7 +362,7 @@ WHERE t.a IN (SELECT b FROM t1);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1 100.00
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 100.00 Using where
2 SUBQUERY t1 system NULL NULL NULL NULL 1 100.00
2 MATERIALIZED t1 system NULL NULL NULL NULL 1 100.00
Warnings:
Note 1003 select `test`.`t2`.`a` AS `a`,0 AS `a`,0 AS `b` from `test`.`t2` where <expr_cache><0>(<in_optimizer>(0,0 in ( <materialize> (select 0 from dual ), <primary_index_lookup>(0 in <temporary table> on distinct_key where ((0 = `<subquery2>`.`b`))))))
DROP VIEW v1;

2
mysql-test/r/subselect_innodb.result
View File

@ -302,7 +302,7 @@ GROUP BY 1
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
2 SUBQUERY t1 ALL NULL NULL NULL NULL 1
3 SUBQUERY t3 ALL NULL NULL NULL NULL 1 Using temporary; Using filesort
3 SUBQUERY t3 ALL NULL NULL NULL NULL 1
SELECT MAX( f1 ) FROM t2
WHERE f2 >= (
SELECT SUM( f1 )

275
mysql-test/r/subselect_mat.result
View File

@ -3,6 +3,8 @@ set @subselect_sj_mat_tmp= @@optimizer_switch;
set optimizer_switch=ifnull(@subselect_mat_test_optimizer_switch_value, 'semijoin=on,firstmatch=on,loosescan=on,semijoin_with_cache=on');
set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
set @optimizer_switch_local_default= @@optimizer_switch;
set @save_join_cache_level=@@join_cache_level;
set join_cache_level=1;
drop table if exists t1, t2, t3, t4, t5, t1i, t2i, t3i;
drop table if exists columns;
drop table if exists t1_16, t2_16, t3_16;
@ -46,7 +48,7 @@ explain extended
select * from t1 where a1 in (select b1 from t2 where b1 > '0');
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 Using where
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where <expr_cache><`test`.`t1`.`a1`>(<in_optimizer>(`test`.`t1`.`a1`,`test`.`t1`.`a1` in ( <materialize> (select `test`.`t2`.`b1` from `test`.`t2` where (`test`.`t2`.`b1` > '0') ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery2>`.`b1`))))))
select * from t1 where a1 in (select b1 from t2 where b1 > '0');
@ -57,9 +59,9 @@ explain extended
select * from t1 where a1 in (select b1 from t2 where b1 > '0' group by b1);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 Using where; Using temporary
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where <expr_cache><`test`.`t1`.`a1`>(<in_optimizer>(`test`.`t1`.`a1`,`test`.`t1`.`a1` in ( <materialize> (select `test`.`t2`.`b1` from `test`.`t2` where (`test`.`t2`.`b1` > '0') group by `test`.`t2`.`b1` ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery2>`.`b1`))))))
Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where <expr_cache><`test`.`t1`.`a1`>(<in_optimizer>(`test`.`t1`.`a1`,`test`.`t1`.`a1` in ( <materialize> (select `test`.`t2`.`b1` from `test`.`t2` where (`test`.`t2`.`b1` > '0') ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery2>`.`b1`))))))
select * from t1 where a1 in (select b1 from t2 where b1 > '0' group by b1);
a1 a2
1 - 01 2 - 01
@ -68,9 +70,9 @@ explain extended
select * from t1 where (a1, a2) in (select b1, b2 from t2 where b1 > '0' group by b1, b2);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 Using where; Using temporary
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where <expr_cache><`test`.`t1`.`a1`,`test`.`t1`.`a2`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` where (`test`.`t2`.`b1` > '0') group by `test`.`t2`.`b1`,`test`.`t2`.`b2` ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1`.`a2` = `<subquery2>`.`b2`))))))
Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where <expr_cache><`test`.`t1`.`a1`,`test`.`t1`.`a2`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` where (`test`.`t2`.`b1` > '0') ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1`.`a2` = `<subquery2>`.`b2`))))))
select * from t1 where (a1, a2) in (select b1, b2 from t2 where b1 > '0' group by b1, b2);
a1 a2
1 - 01 2 - 01
@ -79,7 +81,7 @@ explain extended
select * from t1 where (a1, a2) in (select b1, min(b2) from t2 where b1 > '0' group by b1);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 Using where; Using temporary
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 100.00 Using where; Using temporary
Warnings:
Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where <expr_cache><`test`.`t1`.`a1`,`test`.`t1`.`a2`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (select `test`.`t2`.`b1`,min(`test`.`t2`.`b2`) from `test`.`t2` where (`test`.`t2`.`b1` > '0') group by `test`.`t2`.`b1` ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1`.`a2` = `<subquery2>`.`min(b2)`))))))
select * from t1 where (a1, a2) in (select b1, min(b2) from t2 where b1 > '0' group by b1);
@ -90,7 +92,7 @@ explain extended
select * from t1i where a1 in (select b1 from t2i where b1 > '0');
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1i index NULL _it1_idx # NULL 3 100.00 Using where;
2 SUBQUERY t2i index it2i1,it2i3 it2i1 # NULL 5 100.00 Using where;
2 MATERIALIZED t2i index it2i1,it2i3 it2i1 # NULL 5 100.00 Using where;
Warnings:
Note 1003 select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` where <expr_cache><`test`.`t1i`.`a1`>(<in_optimizer>(`test`.`t1i`.`a1`,`test`.`t1i`.`a1` in ( <materialize> (select `test`.`t2i`.`b1` from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') ), <primary_index_lookup>(`test`.`t1i`.`a1` in <temporary table> on distinct_key where ((`test`.`t1i`.`a1` = `<subquery2>`.`b1`))))))
select * from t1i where a1 in (select b1 from t2i where b1 > '0');
@ -98,13 +100,13 @@ a1 a2
1 - 01 2 - 01
1 - 02 2 - 02
explain extended
select * from t1i where a1 in (select b1 from t2i where b1 > '0' group by b1);
select * from t1i where a1 in (select max(b1) from t2i where b1 > '0' group by b1);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1i index NULL # 18 # 3 100.00 #
2 SUBQUERY t2i range it2i1,it2i3 # 9 # 3 100.00 #
2 MATERIALIZED t2i index it2i1,it2i3 # 9 # 5 100.00 #
Warnings:
Note 1003 select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` where <expr_cache><`test`.`t1i`.`a1`>(<in_optimizer>(`test`.`t1i`.`a1`,`test`.`t1i`.`a1` in ( <materialize> (select `test`.`t2i`.`b1` from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') group by `test`.`t2i`.`b1` ), <primary_index_lookup>(`test`.`t1i`.`a1` in <temporary table> on distinct_key where ((`test`.`t1i`.`a1` = `<subquery2>`.`b1`))))))
select * from t1i where a1 in (select b1 from t2i where b1 > '0' group by b1);
Note 1003 select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` where <expr_cache><`test`.`t1i`.`a1`>(<in_optimizer>(`test`.`t1i`.`a1`,`test`.`t1i`.`a1` in ( <materialize> (select max(`test`.`t2i`.`b1`) from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') group by `test`.`t2i`.`b1` ), <primary_index_lookup>(`test`.`t1i`.`a1` in <temporary table> on distinct_key where ((`test`.`t1i`.`a1` = `<subquery2>`.`max(b1)`))))))
select * from t1i where a1 in (select max(b1) from t2i where b1 > '0' group by b1);
a1 a2
1 - 01 2 - 01
1 - 02 2 - 02
@ -112,7 +114,7 @@ explain extended
select * from t1i where (a1, a2) in (select b1, b2 from t2i where b1 > '0');
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1i index NULL _it1_idx # NULL 3 100.00 Using where;
2 SUBQUERY t2i index it2i1,it2i3 it2i3 # NULL 5 100.00 Using where;
2 MATERIALIZED t2i index it2i1,it2i3 it2i3 # NULL 5 100.00 Using where;
Warnings:
Note 1003 select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` where <expr_cache><`test`.`t1i`.`a1`,`test`.`t1i`.`a2`>(<in_optimizer>((`test`.`t1i`.`a1`,`test`.`t1i`.`a2`),(`test`.`t1i`.`a1`,`test`.`t1i`.`a2`) in ( <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') ), <primary_index_lookup>(`test`.`t1i`.`a1` in <temporary table> on distinct_key where ((`test`.`t1i`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1i`.`a2` = `<subquery2>`.`b2`))))))
select * from t1i where (a1, a2) in (select b1, b2 from t2i where b1 > '0');
@ -120,13 +122,13 @@ a1 a2
1 - 01 2 - 01
1 - 02 2 - 02
explain extended
select * from t1i where (a1, a2) in (select b1, b2 from t2i where b1 > '0' group by b1, b2);
select * from t1i where (a1, a2) in (select b1, max(b2) from t2i where b1 > '0' group by b1);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1i index NULL # # # 3 100.00 #
2 SUBQUERY t2i range it2i1,it2i3 # # # 3 100.00 #
2 MATERIALIZED t2i range it2i1,it2i3 # # # 3 100.00 #
Warnings:
Note 1003 select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` where <expr_cache><`test`.`t1i`.`a1`,`test`.`t1i`.`a2`>(<in_optimizer>((`test`.`t1i`.`a1`,`test`.`t1i`.`a2`),(`test`.`t1i`.`a1`,`test`.`t1i`.`a2`) in ( <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') group by `test`.`t2i`.`b1`,`test`.`t2i`.`b2` ), <primary_index_lookup>(`test`.`t1i`.`a1` in <temporary table> on distinct_key where ((`test`.`t1i`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1i`.`a2` = `<subquery2>`.`b2`))))))
select * from t1i where (a1, a2) in (select b1, b2 from t2i where b1 > '0' group by b1, b2);
Note 1003 select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` where <expr_cache><`test`.`t1i`.`a1`,`test`.`t1i`.`a2`>(<in_optimizer>((`test`.`t1i`.`a1`,`test`.`t1i`.`a2`),(`test`.`t1i`.`a1`,`test`.`t1i`.`a2`) in ( <materialize> (select `test`.`t2i`.`b1`,max(`test`.`t2i`.`b2`) from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') group by `test`.`t2i`.`b1` ), <primary_index_lookup>(`test`.`t1i`.`a1` in <temporary table> on distinct_key where ((`test`.`t1i`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1i`.`a2` = `<subquery2>`.`max(b2)`))))))
select * from t1i where (a1, a2) in (select b1, max(b2) from t2i where b1 > '0' group by b1);
a1 a2
1 - 01 2 - 01
1 - 02 2 - 02
@ -134,7 +136,7 @@ explain extended
select * from t1i where (a1, a2) in (select b1, min(b2) from t2i where b1 > '0' group by b1);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1i index NULL # # # 3 100.00 #
2 SUBQUERY t2i range it2i1,it2i3 # # # 3 100.00 #
2 MATERIALIZED t2i range it2i1,it2i3 # # # 3 100.00 #
Warnings:
Note 1003 select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` where <expr_cache><`test`.`t1i`.`a1`,`test`.`t1i`.`a2`>(<in_optimizer>((`test`.`t1i`.`a1`,`test`.`t1i`.`a2`),(`test`.`t1i`.`a1`,`test`.`t1i`.`a2`) in ( <materialize> (select `test`.`t2i`.`b1`,min(`test`.`t2i`.`b2`) from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') group by `test`.`t2i`.`b1` ), <primary_index_lookup>(`test`.`t1i`.`a1` in <temporary table> on distinct_key where ((`test`.`t1i`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1i`.`a2` = `<subquery2>`.`min(b2)`))))))
select * from t1i where (a1, a2) in (select b1, min(b2) from t2i where b1 > '0' group by b1);
@ -145,7 +147,7 @@ explain extended
select * from t1 where (a1, a2) in (select b1, max(b2) from t2i group by b1);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2i range NULL it2i3 9 NULL 3 100.00 Using index for group-by
2 MATERIALIZED t2i range NULL it2i3 9 NULL 3 100.00 Using index for group-by
Warnings:
Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where <expr_cache><`test`.`t1`.`a1`,`test`.`t1`.`a2`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (select `test`.`t2i`.`b1`,max(`test`.`t2i`.`b2`) from `test`.`t2i` group by `test`.`t2i`.`b1` ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1`.`a2` = `<subquery2>`.`max(b2)`))))))
select * from t1 where (a1, a2) in (select b1, max(b2) from t2i group by b1);
@ -156,11 +158,11 @@ prepare st1 from "explain select * from t1 where (a1, a2) in (select b1, max(b2)
execute st1;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 Using where
2 SUBQUERY t2i range NULL it2i3 9 NULL 3 Using index for group-by
2 MATERIALIZED t2i range NULL it2i3 9 NULL 3 Using index for group-by
execute st1;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 Using where
2 SUBQUERY t2i range NULL it2i3 9 NULL 3 Using index for group-by
2 MATERIALIZED t2i range NULL it2i3 9 NULL 3 Using index for group-by
prepare st2 from "select * from t1 where (a1, a2) in (select b1, max(b2) from t2i group by b1)";
execute st2;
a1 a2
@ -174,7 +176,7 @@ explain extended
select * from t1 where (a1, a2) in (select b1, min(b2) from t2i where b1 > '0' group by b1);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2i range it2i1,it2i3 it2i3 18 NULL 3 100.00 Using where; Using index for group-by
2 MATERIALIZED t2i range it2i1,it2i3 it2i3 18 NULL 3 100.00 Using where; Using index for group-by
Warnings:
Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where <expr_cache><`test`.`t1`.`a1`,`test`.`t1`.`a2`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (select `test`.`t2i`.`b1`,min(`test`.`t2i`.`b2`) from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') group by `test`.`t2i`.`b1` ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1`.`a2` = `<subquery2>`.`min(b2)`))))))
select * from t1 where (a1, a2) in (select b1, min(b2) from t2i where b1 > '0' group by b1);
@ -221,7 +223,7 @@ explain extended
select * from t1 where (a1, a2) in (select b1, b2 from t2 order by b1, b2);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 100.00
Warnings:
Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where <expr_cache><`test`.`t1`.`a1`,`test`.`t1`.`a2`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` order by `test`.`t2`.`b1`,`test`.`t2`.`b2` ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1`.`a2` = `<subquery2>`.`b2`))))))
select * from t1 where (a1, a2) in (select b1, b2 from t2 order by b1, b2);
@ -232,7 +234,7 @@ explain extended
select * from t1i where (a1, a2) in (select b1, b2 from t2i order by b1, b2);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1i index NULL it1i3 18 NULL 3 100.00 Using where; Using index
2 SUBQUERY t2i index NULL it2i3 18 NULL 5 100.00 Using index
2 MATERIALIZED t2i index NULL it2i3 18 NULL 5 100.00 Using index
Warnings:
Note 1003 select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` where <expr_cache><`test`.`t1i`.`a1`,`test`.`t1i`.`a2`>(<in_optimizer>((`test`.`t1i`.`a1`,`test`.`t1i`.`a2`),(`test`.`t1i`.`a1`,`test`.`t1i`.`a2`) in ( <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` order by `test`.`t2i`.`b1`,`test`.`t2i`.`b2` ), <primary_index_lookup>(`test`.`t1i`.`a1` in <temporary table> on distinct_key where ((`test`.`t1i`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1i`.`a2` = `<subquery2>`.`b2`))))))
select * from t1i where (a1, a2) in (select b1, b2 from t2i order by b1, b2);
@ -285,9 +287,9 @@ where (a1, a2) in (select b1, b2 from t2 where b1 > '0') and
where (c1, c2) in (select b1, b2 from t2i where b2 > '0'));
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
3 SUBQUERY t3 ALL NULL NULL NULL NULL 4 100.00 Using where
4 SUBQUERY t2i index it2i2 it2i3 18 NULL 5 100.00 Using where; Using index
2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 Using where
3 MATERIALIZED t3 ALL NULL NULL NULL NULL 4 100.00 Using where
4 MATERIALIZED t2i index it2i2 it2i3 18 NULL 5 100.00 Using where; Using index
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where (<expr_cache><`test`.`t1`.`a1`,`test`.`t1`.`a2`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` where (`test`.`t2`.`b1` > '0') ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1`.`a2` = `<subquery2>`.`b2`)))))) and <expr_cache><`test`.`t1`.`a1`,`test`.`t1`.`a2`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (select `test`.`t3`.`c1`,`test`.`t3`.`c2` from `test`.`t3` where <expr_cache><`test`.`t3`.`c1`,`test`.`t3`.`c2`>(<in_optimizer>((`test`.`t3`.`c1`,`test`.`t3`.`c2`),(`test`.`t3`.`c1`,`test`.`t3`.`c2`) in ( <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where (`test`.`t2i`.`b2` > '0') ), <primary_index_lookup>(`test`.`t3`.`c1` in <temporary table> on distinct_key where ((`test`.`t3`.`c1` = `<subquery4>`.`b1`) and (`test`.`t3`.`c2` = `<subquery4>`.`b2`)))))) ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery3>`.`c1`) and (`test`.`t1`.`a2` = `<subquery3>`.`c2`)))))))
select * from t1
@ -304,9 +306,9 @@ where (a1, a2) in (select b1, b2 from t2i where b1 > '0') and
where (c1, c2) in (select b1, b2 from t2i where b2 > '0'));
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1i index NULL # # # 3 100.00 #
3 SUBQUERY t3i index NULL # # # 4 100.00 #
4 SUBQUERY t2i index it2i2 # # # 5 100.00 #
2 SUBQUERY t2i index it2i1,it2i3 # # # 5 100.00 #
3 MATERIALIZED t3i index NULL # # # 4 100.00 #
4 MATERIALIZED t2i index it2i2 # # # 5 100.00 #
2 MATERIALIZED t2i index it2i1,it2i3 # # # 5 100.00 #
Warnings:
Note 1003 select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` where (<expr_cache><`test`.`t1i`.`a1`,`test`.`t1i`.`a2`>(<in_optimizer>((`test`.`t1i`.`a1`,`test`.`t1i`.`a2`),(`test`.`t1i`.`a1`,`test`.`t1i`.`a2`) in ( <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') ), <primary_index_lookup>(`test`.`t1i`.`a1` in <temporary table> on distinct_key where ((`test`.`t1i`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1i`.`a2` = `<subquery2>`.`b2`)))))) and <expr_cache><`test`.`t1i`.`a1`,`test`.`t1i`.`a2`>(<in_optimizer>((`test`.`t1i`.`a1`,`test`.`t1i`.`a2`),(`test`.`t1i`.`a1`,`test`.`t1i`.`a2`) in ( <materialize> (select `test`.`t3i`.`c1`,`test`.`t3i`.`c2` from `test`.`t3i` where <expr_cache><`test`.`t3i`.`c1`,`test`.`t3i`.`c2`>(<in_optimizer>((`test`.`t3i`.`c1`,`test`.`t3i`.`c2`),(`test`.`t3i`.`c1`,`test`.`t3i`.`c2`) in ( <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where (`test`.`t2i`.`b2` > '0') ), <primary_index_lookup>(`test`.`t3i`.`c1` in <temporary table> on distinct_key where ((`test`.`t3i`.`c1` = `<subquery4>`.`b1`) and (`test`.`t3i`.`c2` = `<subquery4>`.`b2`)))))) ), <primary_index_lookup>(`test`.`t1i`.`a1` in <temporary table> on distinct_key where ((`test`.`t1i`.`a1` = `<subquery3>`.`c1`) and (`test`.`t1i`.`a2` = `<subquery3>`.`c2`)))))))
select * from t1i
@ -325,11 +327,11 @@ b2 in (select c2 from t3 where c2 LIKE '%03')) and
where (c1, c2) in (select b1, b2 from t2i where b2 > '0'));
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
5 SUBQUERY t3 ALL NULL NULL NULL NULL 4 100.00 Using where
6 SUBQUERY t2i index it2i2 it2i3 18 NULL 5 100.00 Using where; Using index
2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 Using where
4 SUBQUERY t3 ALL NULL NULL NULL NULL 4 100.00 Using where
3 SUBQUERY t3 ALL NULL NULL NULL NULL 4 100.00 Using where
5 MATERIALIZED t3 ALL NULL NULL NULL NULL 4 100.00 Using where
6 MATERIALIZED t2i index it2i2 it2i3 18 NULL 5 100.00 Using where; Using index
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 100.00 Using where
4 MATERIALIZED t3 ALL NULL NULL NULL NULL 4 100.00 Using where
3 MATERIALIZED t3 ALL NULL NULL NULL NULL 4 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where (<expr_cache><`test`.`t1`.`a1`,`test`.`t1`.`a2`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` where (<expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3`.`c2` from `test`.`t3` where (`test`.`t3`.`c2` like '%02') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery3>`.`c2`)))))) or <expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3`.`c2` from `test`.`t3` where (`test`.`t3`.`c2` like '%03') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery4>`.`c2`))))))) ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1`.`a2` = `<subquery2>`.`b2`)))))) and <expr_cache><`test`.`t1`.`a1`,`test`.`t1`.`a2`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (select `test`.`t3`.`c1`,`test`.`t3`.`c2` from `test`.`t3` where <expr_cache><`test`.`t3`.`c1`,`test`.`t3`.`c2`>(<in_optimizer>((`test`.`t3`.`c1`,`test`.`t3`.`c2`),(`test`.`t3`.`c1`,`test`.`t3`.`c2`) in ( <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where (`test`.`t2i`.`b2` > '0') ), <primary_index_lookup>(`test`.`t3`.`c1` in <temporary table> on distinct_key where ((`test`.`t3`.`c1` = `<subquery6>`.`b1`) and (`test`.`t3`.`c2` = `<subquery6>`.`b2`)))))) ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery5>`.`c1`) and (`test`.`t1`.`a2` = `<subquery5>`.`c2`)))))))
select * from t1
@ -349,10 +351,10 @@ b2 in (select c2 from t3 t3b where c2 LIKE '%03')) and
where (c1, c2) in (select b1, b2 from t2i where b2 > '0'));
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
5 SUBQUERY t3c ALL NULL NULL NULL NULL 4 100.00 Using where
6 SUBQUERY t2i index it2i2 it2i3 18 NULL 5 100.00 Using where; Using index
5 MATERIALIZED t3c ALL NULL NULL NULL NULL 4 100.00 Using where
6 MATERIALIZED t2i index it2i2 it2i3 18 NULL 5 100.00 Using where; Using index
2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 Using where
4 SUBQUERY t3b ALL NULL NULL NULL NULL 4 100.00 Using where
4 MATERIALIZED t3b ALL NULL NULL NULL NULL 4 100.00 Using where
3 DEPENDENT SUBQUERY t3a ALL NULL NULL NULL NULL 4 100.00 Using where
Warnings:
Note 1276 Field or reference 'test.t1.a1' of SELECT #3 was resolved in SELECT #1
@ -381,18 +383,18 @@ where (a1, a2) in (select b1, b2 from t2i where b1 > '0') and
where (c1, c2) in (select b1, b2 from t2i where b2 > '0')));
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL # # # 3 100.00 #
5 SUBQUERY t3 ALL NULL # # # 4 100.00 #
6 SUBQUERY t2i index it2i2 # # # 5 100.00 #
2 SUBQUERY t2 ALL NULL # # # 5 100.00 #
4 SUBQUERY t3 ALL NULL # # # 4 100.00 #
3 SUBQUERY t3 ALL NULL # # # 4 100.00 #
5 MATERIALIZED t3 ALL NULL # # # 4 100.00 #
6 MATERIALIZED t2i index it2i2 # # # 5 100.00 #
2 MATERIALIZED t2 ALL NULL # # # 5 100.00 #
4 MATERIALIZED t3 ALL NULL # # # 4 100.00 #
3 MATERIALIZED t3 ALL NULL # # # 4 100.00 #
7 UNION t1i index NULL # # # 3 100.00 #
9 SUBQUERY t3i index NULL # # # 4 100.00 #
10 SUBQUERY t2i index it2i2 # # # 5 100.00 #
8 SUBQUERY t2i index it2i1,it2i3 # # # 5 100.00 #
9 MATERIALIZED t3i index NULL # # # 4 100.00 #
10 MATERIALIZED t2i index it2i2 # # # 5 100.00 #
8 MATERIALIZED t2i index it2i1,it2i3 # # # 5 100.00 #
NULL UNION RESULT <union1,7> ALL NULL # # # NULL NULL #
Warnings:
Note 1003 (select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where (<expr_cache><`test`.`t1`.`a1`,`test`.`t1`.`a2`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` where (<expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3`.`c2` from `test`.`t3` where (`test`.`t3`.`c2` like '%02') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery3>`.`c2`)))))) or <expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3`.`c2` from `test`.`t3` where (`test`.`t3`.`c2` like '%03') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery4>`.`c2`))))))) group by `test`.`t2`.`b1`,`test`.`t2`.`b2` ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1`.`a2` = `<subquery2>`.`b2`)))))) and <expr_cache><`test`.`t1`.`a1`,`test`.`t1`.`a2`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (select `test`.`t3`.`c1`,`test`.`t3`.`c2` from `test`.`t3` where <expr_cache><`test`.`t3`.`c1`,`test`.`t3`.`c2`>(<in_optimizer>((`test`.`t3`.`c1`,`test`.`t3`.`c2`),(`test`.`t3`.`c1`,`test`.`t3`.`c2`) in ( <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where (`test`.`t2i`.`b2` > '0') ), <primary_index_lookup>(`test`.`t3`.`c1` in <temporary table> on distinct_key where ((`test`.`t3`.`c1` = `<subquery6>`.`b1`) and (`test`.`t3`.`c2` = `<subquery6>`.`b2`)))))) ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery5>`.`c1`) and (`test`.`t1`.`a2` = `<subquery5>`.`c2`)))))))) union (select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` where (<expr_cache><`test`.`t1i`.`a1`,`test`.`t1i`.`a2`>(<in_optimizer>((`test`.`t1i`.`a1`,`test`.`t1i`.`a2`),(`test`.`t1i`.`a1`,`test`.`t1i`.`a2`) in ( <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') ), <primary_index_lookup>(`test`.`t1i`.`a1` in <temporary table> on distinct_key where ((`test`.`t1i`.`a1` = `<subquery8>`.`b1`) and (`test`.`t1i`.`a2` = `<subquery8>`.`b2`)))))) and <expr_cache><`test`.`t1i`.`a1`,`test`.`t1i`.`a2`>(<in_optimizer>((`test`.`t1i`.`a1`,`test`.`t1i`.`a2`),(`test`.`t1i`.`a1`,`test`.`t1i`.`a2`) in ( <materialize> (select `test`.`t3i`.`c1`,`test`.`t3i`.`c2` from `test`.`t3i` where <expr_cache><`test`.`t3i`.`c1`,`test`.`t3i`.`c2`>(<in_optimizer>((`test`.`t3i`.`c1`,`test`.`t3i`.`c2`),(`test`.`t3i`.`c1`,`test`.`t3i`.`c2`) in ( <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where (`test`.`t2i`.`b2` > '0') ), <primary_index_lookup>(`test`.`t3i`.`c1` in <temporary table> on distinct_key where ((`test`.`t3i`.`c1` = `<subquery10>`.`b1`) and (`test`.`t3i`.`c2` = `<subquery10>`.`b2`)))))) ), <primary_index_lookup>(`test`.`t1i`.`a1` in <temporary table> on distinct_key where ((`test`.`t1i`.`a1` = `<subquery9>`.`c1`) and (`test`.`t1i`.`a2` = `<subquery9>`.`c2`))))))))
Note 1003 (select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where (<expr_cache><`test`.`t1`.`a1`,`test`.`t1`.`a2`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` where (<expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3`.`c2` from `test`.`t3` where (`test`.`t3`.`c2` like '%02') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery3>`.`c2`)))))) or <expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3`.`c2` from `test`.`t3` where (`test`.`t3`.`c2` like '%03') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery4>`.`c2`))))))) ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1`.`a2` = `<subquery2>`.`b2`)))))) and <expr_cache><`test`.`t1`.`a1`,`test`.`t1`.`a2`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (select `test`.`t3`.`c1`,`test`.`t3`.`c2` from `test`.`t3` where <expr_cache><`test`.`t3`.`c1`,`test`.`t3`.`c2`>(<in_optimizer>((`test`.`t3`.`c1`,`test`.`t3`.`c2`),(`test`.`t3`.`c1`,`test`.`t3`.`c2`) in ( <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where (`test`.`t2i`.`b2` > '0') ), <primary_index_lookup>(`test`.`t3`.`c1` in <temporary table> on distinct_key where ((`test`.`t3`.`c1` = `<subquery6>`.`b1`) and (`test`.`t3`.`c2` = `<subquery6>`.`b2`)))))) ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery5>`.`c1`) and (`test`.`t1`.`a2` = `<subquery5>`.`c2`)))))))) union (select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` where (<expr_cache><`test`.`t1i`.`a1`,`test`.`t1i`.`a2`>(<in_optimizer>((`test`.`t1i`.`a1`,`test`.`t1i`.`a2`),(`test`.`t1i`.`a1`,`test`.`t1i`.`a2`) in ( <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') ), <primary_index_lookup>(`test`.`t1i`.`a1` in <temporary table> on distinct_key where ((`test`.`t1i`.`a1` = `<subquery8>`.`b1`) and (`test`.`t1i`.`a2` = `<subquery8>`.`b2`)))))) and <expr_cache><`test`.`t1i`.`a1`,`test`.`t1i`.`a2`>(<in_optimizer>((`test`.`t1i`.`a1`,`test`.`t1i`.`a2`),(`test`.`t1i`.`a1`,`test`.`t1i`.`a2`) in ( <materialize> (select `test`.`t3i`.`c1`,`test`.`t3i`.`c2` from `test`.`t3i` where <expr_cache><`test`.`t3i`.`c1`,`test`.`t3i`.`c2`>(<in_optimizer>((`test`.`t3i`.`c1`,`test`.`t3i`.`c2`),(`test`.`t3i`.`c1`,`test`.`t3i`.`c2`) in ( <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where (`test`.`t2i`.`b2` > '0') ), <primary_index_lookup>(`test`.`t3i`.`c1` in <temporary table> on distinct_key where ((`test`.`t3i`.`c1` = `<subquery10>`.`b1`) and (`test`.`t3i`.`c2` = `<subquery10>`.`b2`)))))) ), <primary_index_lookup>(`test`.`t1i`.`a1` in <temporary table> on distinct_key where ((`test`.`t1i`.`a1` = `<subquery9>`.`c1`) and (`test`.`t1i`.`a2` = `<subquery9>`.`c2`))))))))
(select * from t1
where (a1, a2) in (select b1, b2 from t2
where b2 in (select c2 from t3 where c2 LIKE '%02') or
@ -415,8 +417,8 @@ where (a1, a2) in (select * from t1 where a1 > '0' UNION select * from t2 where
where (c1, c2) in (select b1, b2 from t2i where b2 > '0'));
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
4 SUBQUERY t3 ALL NULL NULL NULL NULL 4 100.00 Using where
5 SUBQUERY t2i index it2i2 it2i3 18 NULL 5 100.00 Using where; Using index
4 MATERIALIZED t3 ALL NULL NULL NULL NULL 4 100.00 Using where
5 MATERIALIZED t2i index it2i2 it2i3 18 NULL 5 100.00 Using where; Using index
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
3 DEPENDENT UNION t2 ALL NULL NULL NULL NULL 5 100.00 Using where
NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL NULL
@ -438,8 +440,8 @@ a1 = c1;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY t3 ALL NULL NULL NULL NULL 4 100.00 Using where; Using join buffer (flat, BNL join)
4 SUBQUERY t3 ALL NULL NULL NULL NULL 4 100.00 Using where
5 SUBQUERY t2i index it2i2 it2i3 18 NULL 5 100.00 Using where; Using index
4 MATERIALIZED t3 ALL NULL NULL NULL NULL 4 100.00 Using where
5 MATERIALIZED t2i index it2i2 it2i3 18 NULL 5 100.00 Using where; Using index
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
3 DEPENDENT UNION t2 ALL NULL NULL NULL NULL 5 100.00 Using where
NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL NULL
@ -485,7 +487,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
5 DEPENDENT SUBQUERY t3c ALL NULL NULL NULL NULL 4 100.00 Using where
6 DEPENDENT SUBQUERY t2i index_subquery it2i1,it2i2,it2i3 it2i3 18 func,func 2 100.00 Using index; Using where
2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 Using where
4 SUBQUERY t3b ALL NULL NULL NULL NULL 4 100.00 Using where
4 MATERIALIZED t3b ALL NULL NULL NULL NULL 4 100.00 Using where
3 DEPENDENT SUBQUERY t3a ALL NULL NULL NULL NULL 4 100.00 Using where
Warnings:
Note 1276 Field or reference 'test.t1.a1' of SELECT #3 was resolved in SELECT #1
@ -622,7 +624,7 @@ from t1_16
where a1 in (select substring(b1,1,16) from t2_16 where b1 > '0');
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1_16 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2_16 ALL NULL NULL NULL NULL 3 100.00 Using where
2 MATERIALIZED t2_16 ALL NULL NULL NULL NULL 3 100.00 Using where
Warnings:
Note 1003 select left(`test`.`t1_16`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_16`.`a2`,7) AS `left(a2,7)` from `test`.`t1_16` where <expr_cache><`test`.`t1_16`.`a1`>(<in_optimizer>(`test`.`t1_16`.`a1`,`test`.`t1_16`.`a1` in ( <materialize> (select substr(`test`.`t2_16`.`b1`,1,16) from `test`.`t2_16` where (`test`.`t2_16`.`b1` > '0') ), <primary_index_lookup>(`test`.`t1_16`.`a1` in <temporary table> on distinct_key where ((`test`.`t1_16`.`a1` = `<subquery2>`.`substring(b1,1,16)`))))))
select left(a1,7), left(a2,7)
@ -651,7 +653,7 @@ from t1_16
where a1 in (select group_concat(b1) from t2_16 group by b2);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1_16 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2_16 ALL NULL NULL NULL NULL 3 100.00 Using filesort
2 MATERIALIZED t2_16 ALL NULL NULL NULL NULL 3 100.00 Using filesort
Warnings:
Note 1003 select left(`test`.`t1_16`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_16`.`a2`,7) AS `left(a2,7)` from `test`.`t1_16` where <expr_cache><`test`.`t1_16`.`a1`>(<in_optimizer>(`test`.`t1_16`.`a1`,`test`.`t1_16`.`a1` in ( <materialize> (select group_concat(`test`.`t2_16`.`b1` separator ',') from `test`.`t2_16` group by `test`.`t2_16`.`b2` ), <primary_index_lookup>(`test`.`t1_16`.`a1` in <temporary table> on distinct_key where ((`test`.`t1_16`.`a1` = `<subquery2>`.`group_concat(b1)`))))))
select left(a1,7), left(a2,7)
@ -673,7 +675,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
2 DEPENDENT SUBQUERY t1_16 ALL NULL NULL NULL NULL 3 100.00 Using where
3 DEPENDENT SUBQUERY t2_16 ALL NULL NULL NULL NULL 3 100.00 Using where
3 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 Using where; Using join buffer (flat, BNL join)
4 SUBQUERY t3 ALL NULL NULL NULL NULL 4 100.00 Using where
4 MATERIALIZED t3 ALL NULL NULL NULL NULL 4 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where <expr_cache><concat(`test`.`t1`.`a1`,'x')>(<in_optimizer>(concat(`test`.`t1`.`a1`,'x'),<exists>(select left(`test`.`t1_16`.`a1`,8) from `test`.`t1_16` where (<expr_cache><`test`.`t1_16`.`a1`,`test`.`t1_16`.`a2`>(<in_optimizer>((`test`.`t1_16`.`a1`,`test`.`t1_16`.`a2`),<exists>(select `test`.`t2_16`.`b1`,`test`.`t2_16`.`b2` from `test`.`t2_16` join `test`.`t2` where ((`test`.`t2`.`b2` = substr(`test`.`t2_16`.`b2`,1,6)) and <expr_cache><`test`.`t2`.`b1`>(<in_optimizer>(`test`.`t2`.`b1`,`test`.`t2`.`b1` in ( <materialize> (select `test`.`t3`.`c1` from `test`.`t3` where (`test`.`t3`.`c2` > '0') ), <primary_index_lookup>(`test`.`t2`.`b1` in <temporary table> on distinct_key where ((`test`.`t2`.`b1` = `<subquery4>`.`c1`)))))) and (<cache>(`test`.`t1_16`.`a1`) = `test`.`t2_16`.`b1`) and (<cache>(`test`.`t1_16`.`a2`) = `test`.`t2_16`.`b2`))))) and (<cache>(concat(`test`.`t1`.`a1`,'x')) = left(`test`.`t1_16`.`a1`,8))))))
drop table t1_16, t2_16, t3_16;
@ -735,7 +737,7 @@ from t1_512
where a1 in (select substring(b1,1,512) from t2_512 where b1 > '0');
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1_512 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2_512 ALL NULL NULL NULL NULL 3 100.00 Using where
2 MATERIALIZED t2_512 ALL NULL NULL NULL NULL 3 100.00 Using where
Warnings:
Note 1003 select left(`test`.`t1_512`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_512`.`a2`,7) AS `left(a2,7)` from `test`.`t1_512` where <expr_cache><`test`.`t1_512`.`a1`>(<in_optimizer>(`test`.`t1_512`.`a1`,`test`.`t1_512`.`a1` in ( <materialize> (select substr(`test`.`t2_512`.`b1`,1,512) from `test`.`t2_512` where (`test`.`t2_512`.`b1` > '0') ), <primary_index_lookup>(`test`.`t1_512`.`a1` in <temporary table> on distinct_key where ((`test`.`t1_512`.`a1` = `<subquery2>`.`substring(b1,1,512)`))))))
select left(a1,7), left(a2,7)
@ -749,7 +751,7 @@ from t1_512
where a1 in (select group_concat(b1) from t2_512 group by b2);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1_512 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2_512 ALL NULL NULL NULL NULL 3 100.00 Using filesort
2 MATERIALIZED t2_512 ALL NULL NULL NULL NULL 3 100.00 Using filesort
Warnings:
Note 1003 select left(`test`.`t1_512`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_512`.`a2`,7) AS `left(a2,7)` from `test`.`t1_512` where <expr_cache><`test`.`t1_512`.`a1`>(<in_optimizer>(`test`.`t1_512`.`a1`,`test`.`t1_512`.`a1` in ( <materialize> (select group_concat(`test`.`t2_512`.`b1` separator ',') from `test`.`t2_512` group by `test`.`t2_512`.`b2` ), <primary_index_lookup>(`test`.`t1_512`.`a1` in <temporary table> on distinct_key where ((`test`.`t1_512`.`a1` = `<subquery2>`.`group_concat(b1)`))))))
select left(a1,7), left(a2,7)
@ -762,7 +764,7 @@ from t1_512
where a1 in (select group_concat(b1) from t2_512 group by b2);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1_512 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2_512 ALL NULL NULL NULL NULL 3 100.00 Using filesort
2 MATERIALIZED t2_512 ALL NULL NULL NULL NULL 3 100.00 Using filesort
Warnings:
Note 1003 select left(`test`.`t1_512`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_512`.`a2`,7) AS `left(a2,7)` from `test`.`t1_512` where <expr_cache><`test`.`t1_512`.`a1`>(<in_optimizer>(`test`.`t1_512`.`a1`,`test`.`t1_512`.`a1` in ( <materialize> (select group_concat(`test`.`t2_512`.`b1` separator ',') from `test`.`t2_512` group by `test`.`t2_512`.`b2` ), <primary_index_lookup>(`test`.`t1_512`.`a1` in <temporary table> on distinct_key where ((`test`.`t1_512`.`a1` = `<subquery2>`.`group_concat(b1)`))))))
select left(a1,7), left(a2,7)
@ -842,7 +844,7 @@ from t1_1024
where a1 in (select group_concat(b1) from t2_1024 group by b2);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1_1024 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2_1024 ALL NULL NULL NULL NULL 3 100.00 Using filesort
2 MATERIALIZED t2_1024 ALL NULL NULL NULL NULL 3 100.00 Using filesort
Warnings:
Note 1003 select left(`test`.`t1_1024`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1024`.`a2`,7) AS `left(a2,7)` from `test`.`t1_1024` where <expr_cache><`test`.`t1_1024`.`a1`>(<in_optimizer>(`test`.`t1_1024`.`a1`,`test`.`t1_1024`.`a1` in ( <materialize> (select group_concat(`test`.`t2_1024`.`b1` separator ',') from `test`.`t2_1024` group by `test`.`t2_1024`.`b2` ), <primary_index_lookup>(`test`.`t1_1024`.`a1` in <temporary table> on distinct_key where ((`test`.`t1_1024`.`a1` = `<subquery2>`.`group_concat(b1)`))))))
select left(a1,7), left(a2,7)
@ -855,7 +857,7 @@ from t1_1024
where a1 in (select group_concat(b1) from t2_1024 group by b2);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1_1024 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2_1024 ALL NULL NULL NULL NULL 3 100.00 Using filesort
2 MATERIALIZED t2_1024 ALL NULL NULL NULL NULL 3 100.00 Using filesort
Warnings:
Note 1003 select left(`test`.`t1_1024`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1024`.`a2`,7) AS `left(a2,7)` from `test`.`t1_1024` where <expr_cache><`test`.`t1_1024`.`a1`>(<in_optimizer>(`test`.`t1_1024`.`a1`,`test`.`t1_1024`.`a1` in ( <materialize> (select group_concat(`test`.`t2_1024`.`b1` separator ',') from `test`.`t2_1024` group by `test`.`t2_1024`.`b2` ), <primary_index_lookup>(`test`.`t1_1024`.`a1` in <temporary table> on distinct_key where ((`test`.`t1_1024`.`a1` = `<subquery2>`.`group_concat(b1)`))))))
select left(a1,7), left(a2,7)
@ -935,7 +937,7 @@ from t1_1025
where a1 in (select group_concat(b1) from t2_1025 group by b2);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1_1025 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2_1025 ALL NULL NULL NULL NULL 3 100.00 Using filesort
2 MATERIALIZED t2_1025 ALL NULL NULL NULL NULL 3 100.00 Using filesort
Warnings:
Note 1003 select left(`test`.`t1_1025`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1025`.`a2`,7) AS `left(a2,7)` from `test`.`t1_1025` where <expr_cache><`test`.`t1_1025`.`a1`>(<in_optimizer>(`test`.`t1_1025`.`a1`,`test`.`t1_1025`.`a1` in ( <materialize> (select group_concat(`test`.`t2_1025`.`b1` separator ',') from `test`.`t2_1025` group by `test`.`t2_1025`.`b2` ), <primary_index_lookup>(`test`.`t1_1025`.`a1` in <temporary table> on distinct_key where ((`test`.`t1_1025`.`a1` = `<subquery2>`.`group_concat(b1)`))))))
select left(a1,7), left(a2,7)
@ -948,7 +950,7 @@ from t1_1025
where a1 in (select group_concat(b1) from t2_1025 group by b2);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1_1025 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2_1025 ALL NULL NULL NULL NULL 3 100.00 Using filesort
2 MATERIALIZED t2_1025 ALL NULL NULL NULL NULL 3 100.00 Using filesort
Warnings:
Note 1003 select left(`test`.`t1_1025`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1025`.`a2`,7) AS `left(a2,7)` from `test`.`t1_1025` where <expr_cache><`test`.`t1_1025`.`a1`>(<in_optimizer>(`test`.`t1_1025`.`a1`,`test`.`t1_1025`.`a1` in ( <materialize> (select group_concat(`test`.`t2_1025`.`b1` separator ',') from `test`.`t2_1025` group by `test`.`t2_1025`.`b2` ), <primary_index_lookup>(`test`.`t1_1025`.`a1` in <temporary table> on distinct_key where ((`test`.`t1_1025`.`a1` = `<subquery2>`.`group_concat(b1)`))))))
select left(a1,7), left(a2,7)
@ -969,7 +971,7 @@ from t1bit
where (a1, a2) in (select b1, b2 from t2bit);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1bit ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2bit ALL NULL NULL NULL NULL 3 100.00
2 MATERIALIZED t2bit ALL NULL NULL NULL NULL 3 100.00
Warnings:
Note 1003 select conv(`test`.`t1bit`.`a1`,10,2) AS `bin(a1)`,conv(`test`.`t1bit`.`a2`,10,2) AS `bin(a2)` from `test`.`t1bit` where <expr_cache><`test`.`t1bit`.`a1`,`test`.`t1bit`.`a2`>(<in_optimizer>((`test`.`t1bit`.`a1`,`test`.`t1bit`.`a2`),(`test`.`t1bit`.`a1`,`test`.`t1bit`.`a2`) in ( <materialize> (select `test`.`t2bit`.`b1`,`test`.`t2bit`.`b2` from `test`.`t2bit` ), <primary_index_lookup>(`test`.`t1bit`.`a1` in <temporary table> on distinct_key where ((`test`.`t1bit`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1bit`.`a2` = `<subquery2>`.`b2`))))))
select bin(a1), bin(a2)
@ -1040,7 +1042,7 @@ explain extended
select a from t1 where a in (select c from t2 where d >= 20);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 7 100.00 Using where
2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 100.00 Using where
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where <expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,`test`.`t1`.`a` in ( <materialize> (select `test`.`t2`.`c` from `test`.`t2` where (`test`.`t2`.`d` >= 20) ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where ((`test`.`t1`.`a` = `<subquery2>`.`c`))))))
select a from t1 where a in (select c from t2 where d >= 20);
@ -1054,7 +1056,7 @@ explain extended
select a from t1 where a in (select c from t2 where d >= 20);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 index NULL it1a 4 NULL 7 100.00 Using where; Using index
2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 100.00 Using where
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where <expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,`test`.`t1`.`a` in ( <materialize> (select `test`.`t2`.`c` from `test`.`t2` where (`test`.`t2`.`d` >= 20) ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where ((`test`.`t1`.`a` = `<subquery2>`.`c`))))))
select a from t1 where a in (select c from t2 where d >= 20);
@ -1068,7 +1070,7 @@ explain extended
select a from t1 where a in (select c from t2 where d >= 20);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 index NULL it1a 4 NULL 7 100.00 Using where; Using index
2 SUBQUERY t2 ALL NULL NULL NULL NULL 7 100.00 Using where
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 7 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where <expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,`test`.`t1`.`a` in ( <materialize> (select `test`.`t2`.`c` from `test`.`t2` where (`test`.`t2`.`d` >= 20) ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where ((`test`.`t1`.`a` = `<subquery2>`.`c`))))))
select a from t1 where a in (select c from t2 where d >= 20);
@ -1081,7 +1083,7 @@ explain extended
select a from t1 group by a having a in (select c from t2 where d >= 20);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 index NULL it1a 4 NULL 7 100.00 Using index
2 SUBQUERY t2 ALL NULL NULL NULL NULL 7 100.00 Using where
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 7 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` group by `test`.`t1`.`a` having <expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,`test`.`t1`.`a` in ( <materialize> (select `test`.`t2`.`c` from `test`.`t2` where (`test`.`t2`.`d` >= 20) ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where ((`test`.`t1`.`a` = `<subquery2>`.`c`))))))
select a from t1 group by a having a in (select c from t2 where d >= 20);
@ -1093,7 +1095,7 @@ explain extended
select a from t1 group by a having a in (select c from t2 where d >= 20);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 index NULL it1a 4 NULL 7 100.00 Using index
2 SUBQUERY t2 ALL NULL NULL NULL NULL 7 100.00 Using where
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 7 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` group by `test`.`t1`.`a` having <expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,`test`.`t1`.`a` in ( <materialize> (select `test`.`t2`.`c` from `test`.`t2` where (`test`.`t2`.`d` >= 20) ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where ((`test`.`t1`.`a` = `<subquery2>`.`c`))))))
select a from t1 group by a having a in (select c from t2 where d >= 20);
@ -1148,21 +1150,21 @@ drop table t2;
create table t1 (a1 int key);
create table t2 (b1 int);
insert into t1 values (5);
explain select min(a1) from t1 where 7 in (select b1 from t2 group by b1);
explain select min(a1) from t1 where 7 in (select max(b1) from t2 group by b1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1
2 SUBQUERY t2 system NULL NULL NULL NULL 0 const row not found
select min(a1) from t1 where 7 in (select b1 from t2 group by b1);
2 MATERIALIZED t2 system NULL NULL NULL NULL 0 const row not found
select min(a1) from t1 where 7 in (select max(b1) from t2 group by b1);
min(a1)
NULL
set @save_optimizer_switch=@@optimizer_switch;
set @@optimizer_switch=@optimizer_switch_local_default;
set @@optimizer_switch='materialization=off,in_to_exists=on';
explain select min(a1) from t1 where 7 in (select b1 from t2 group by b1);
explain select min(a1) from t1 where 7 in (select max(b1) from t2 group by b1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1
2 DEPENDENT SUBQUERY t2 system NULL NULL NULL NULL 0 const row not found
select min(a1) from t1 where 7 in (select b1 from t2 group by b1);
select min(a1) from t1 where 7 in (select max(b1) from t2 group by b1);
min(a1)
NULL
set @@optimizer_switch=@optimizer_switch_local_default;
@ -1170,7 +1172,7 @@ set @@optimizer_switch='semijoin=off';
explain select min(a1) from t1 where 7 in (select b1 from t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1
2 SUBQUERY t2 system NULL NULL NULL NULL 0 const row not found
2 MATERIALIZED t2 system NULL NULL NULL NULL 0 const row not found
select min(a1) from t1 where 7 in (select b1 from t2);
min(a1)
NULL
@ -1200,7 +1202,7 @@ insert into t1 values ('aa', 'aaaa');
explain select a,b from t1 where b in (select a from t1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where
2 SUBQUERY t1 ALL NULL NULL NULL NULL 2
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 2
select a,b from t1 where b in (select a from t1);
a b
prepare st1 from "select a,b from t1 where b in (select a from t1)";
@ -1229,7 +1231,7 @@ WHERE (t1i) IN (
SELECT t2i
FROM t2
WHERE (t2i) IN (
SELECT t3i
SELECT max(t3i)
FROM t3
GROUP BY t3i
)
@ -1237,8 +1239,8 @@ GROUP BY t3i
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1
1 PRIMARY t4 ALL NULL NULL NULL NULL 2 Using where
2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 Using where
3 SUBQUERY t3 ALL NULL NULL NULL NULL 2 Using temporary
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 Using where
3 MATERIALIZED t3 ALL NULL NULL NULL NULL 2 Using temporary
DROP TABLE t1,t2,t3,t4;
CREATE TABLE t1 (
pk INTEGER AUTO_INCREMENT,
@ -1337,17 +1339,20 @@ DROP TABLE t1,t2,t3;
CREATE TABLE t1 (a INTEGER);
CREATE TABLE t2 (b INTEGER);
INSERT INTO t2 VALUES (1);
set @tmp_optimizer_switch=@@optimizer_switch;
set optimizer_switch='derived_merge=off,derived_with_keys=off';
explain SELECT a FROM (
SELECT t1.* FROM t1 LEFT JOIN t2 ON t1.a > 3 OR t2.b IN (SELECT a FROM t1)
) table1;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2
2 DERIVED NULL NULL NULL NULL NULL NULL NULL no matching row in const table
3 SUBQUERY NULL NULL NULL NULL NULL NULL NULL no matching row in const table
3 MATERIALIZED NULL NULL NULL NULL NULL NULL NULL no matching row in const table
SELECT a FROM (
SELECT t1.* FROM t1 LEFT JOIN t2 ON t1.a > 3 OR t2.b IN (SELECT a FROM t1)
) table1;
a
set optimizer_switch=@tmp_optimizer_switch;
DROP TABLE t1, t2;
# End BUG#56367
#
@ -1371,7 +1376,7 @@ WHERE t1.f1 IN (SELECT t1.pk FROM t1 ORDER BY t1.f1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where
2 SUBQUERY t1 system NULL NULL NULL NULL 1
2 MATERIALIZED t1 system NULL NULL NULL NULL 1
SELECT * FROM t1 JOIN t2 USING (f1)
WHERE t1.f1 IN (SELECT t1.pk FROM t1 ORDER BY t1.f1);
f1 pk pk
@ -1445,7 +1450,7 @@ EXPLAIN SELECT COUNT(*) FROM t1 WHERE (f1,f2) IN (SELECT f1,f2 FROM t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 2
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join)
2 SUBQUERY t2 ALL NULL NULL NULL NULL 2
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2
SELECT COUNT(*) FROM t1 WHERE (f1,f2) IN (SELECT f1,f2 FROM t2);
COUNT(*)
2
@ -1469,7 +1474,7 @@ EXPLAIN SELECT pk FROM t1 WHERE (a) IN (SELECT a FROM t2 WHERE pk > 0);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
2 SUBQUERY t2 range PRIMARY PRIMARY 4 NULL 2 Using index condition; Rowid-ordered scan
2 MATERIALIZED t2 range PRIMARY PRIMARY 4 NULL 2 Using index condition; Rowid-ordered scan
SELECT pk FROM t1 WHERE (a) IN (SELECT a FROM t2 WHERE pk > 0);
pk
2
@ -1510,7 +1515,7 @@ insert into t1 values (0),(1),(2);
explain select a, a in (select a from t1) from t0;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t0 ALL NULL NULL NULL NULL 3
2 SUBQUERY t1 ALL NULL NULL NULL NULL 3
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 3
select a, a in (select a from t1) from t0;
a a in (select a from t1)
0 1
@ -1725,8 +1730,90 @@ FROM t4 , t5
);
f1 f5
DROP TABLE t1, t2, t3, t4, t5;
#
# BUG#868908: Crash in check_simple_equality() with semijoin + materialization + prepared statement
#
CREATE TABLE t1 ( a int );
CREATE TABLE t3 ( b int, c int) ;
CREATE TABLE t2 ( a int ) ;
CREATE TABLE t4 ( a int , c int) ;
PREPARE st1 FROM "
SELECT STRAIGHT_JOIN *
FROM t1
WHERE ( 3 ) IN (
SELECT t3.b
FROM t3
LEFT JOIN (
t2 STRAIGHT_JOIN t4 ON ( t4.c = t2.a )
) ON ( t4.a = t3.c )
);
";
EXECUTE st1;
a
EXECUTE st1;
a
DROP TABLE t1,t2,t3,t4;
#
# BUG#901032: Wrong result for MIN/MAX on an indexed column with materialization and semijoin
#
CREATE TABLE t1 ( a INT, KEY(a) );
INSERT INTO t1 VALUES (1);
CREATE TABLE t2 ( b INT );
INSERT INTO t2 VALUES (2);
CREATE TABLE t3 ( c INT );
INSERT INTO t3 VALUES (2);
SELECT MIN(a) FROM t1, t2 WHERE b IN (SELECT c FROM t3 GROUP BY c);
MIN(a)
1
DROP TABLE t1,t2,t3;
#
#
# BUG#902632: Crash or invalid read at st_join_table::cleanup, st_table::disable_keyread
#
CREATE TABLE t1 ( a INT );
INSERT INTO t1 VALUES (1), (2);
CREATE TABLE t2 ( b INT );
INSERT INTO t2 VALUES (3), (4);
CREATE TABLE t3 ( c INT );
INSERT INTO t3 VALUES (5), (6);
SELECT * FROM t1 WHERE EXISTS (
SELECT DISTINCT b FROM t2
WHERE b <= a
AND b IN ( SELECT c FROM t3 GROUP BY c )
);
a
DROP TABLE t1,t2,t3;
#
# BUG#901506: Crash in TABLE_LIST::print on EXPLAIN EXTENDED
#
CREATE TABLE t1 ( a INT, KEY(a) );
INSERT INTO t1 VALUES (8);
EXPLAIN EXTENDED
SELECT * FROM t1
WHERE a IN ( SELECT MIN(a) FROM t1 );
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1 100.00
2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away
Warnings:
Note 1003 select 8 AS `a` from dual where <expr_cache><8>(<in_optimizer>(8,<exists>(select min(`test`.`t1`.`a`) from `test`.`t1` having (<cache>(8) = <ref_null_helper>(min(`test`.`t1`.`a`))))))
DROP TABLE t1;
#
# BUG#904432: Wrong result with LEFT JOIN, constant table, semijoin=ON,materialization=ON
#
CREATE TABLE t1 ( a INT ) ENGINE=MyISAM;
INSERT INTO t1 VALUES (4);
CREATE TABLE t2 ( b INT NOT NULL, c INT );
INSERT INTO t2 VALUES (4,2),(4,2),(4,4),(1,1);
SELECT * FROM t1 LEFT JOIN t2 ON ( a = b )
WHERE a IN ( SELECT c FROM t2 );
a b c
4 4 2
4 4 2
4 4 4
DROP TABLE t1,t2;
# This must be at the end:
set optimizer_switch=@subselect_sj_mat_tmp;
set join_cache_level=@save_join_cache_level;
set @subselect_mat_test_optimizer_switch_value=null;
set @@optimizer_switch='materialization=on,in_to_exists=off,semijoin=off';
set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
@ -1737,7 +1824,7 @@ insert into t1 values (0),(1),(2);
explain select a, a in (select a from t1) from t0;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t0 ALL NULL NULL NULL NULL 3
2 SUBQUERY t1 ALL NULL NULL NULL NULL 3
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 3
select a, a in (select a from t1) from t0;
a a in (select a from t1)
0 1
@ -1769,7 +1856,7 @@ EXPLAIN
SELECT SUM(c1) c1_sum FROM t1 WHERE c1 IN (SELECT c2 FROM t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1
2 SUBQUERY t2 system NULL NULL NULL NULL 1
2 MATERIALIZED t2 system NULL NULL NULL NULL 1
SELECT SUM(c1) c1_sum FROM t1 WHERE c1 IN (SELECT c2 FROM t2);
c1_sum
NULL
@ -1777,7 +1864,7 @@ EXPLAIN
SELECT SUM(c1) c1_sum FROM t1 WHERE c1 IN (SELECT c2 FROM t2) HAVING c1_sum;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1
2 SUBQUERY t2 system NULL NULL NULL NULL 1
2 MATERIALIZED t2 system NULL NULL NULL NULL 1
SELECT SUM(c1) c1_sum FROM t1 WHERE c1 IN (SELECT c2 FROM t2) HAVING c1_sum;
c1_sum
drop table t1, t2;
@ -1796,7 +1883,7 @@ SELECT i FROM t1 LEFT JOIN t2 ON (j) IN (SELECT k FROM t3);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1
1 PRIMARY t2 ALL NULL NULL NULL NULL 1 Using where
2 SUBQUERY t3 system NULL NULL NULL NULL 0 const row not found
2 MATERIALIZED t3 system NULL NULL NULL NULL 0 const row not found
SELECT i FROM t1 LEFT JOIN t2 ON (j) IN (SELECT k FROM t3);
i
10
@ -1805,7 +1892,7 @@ SELECT i FROM t1 LEFT JOIN t2 ON (j) IN (SELECT max(k) FROM t3);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1
1 PRIMARY t2 ALL NULL NULL NULL NULL 1 Using where
2 SUBQUERY t3 system NULL NULL NULL NULL 0 const row not found
2 MATERIALIZED t3 system NULL NULL NULL NULL 0 const row not found
SELECT i FROM t1 LEFT JOIN t2 ON (j) IN (SELECT max(k) FROM t3);
i
10
@ -1847,7 +1934,7 @@ EXPLAIN SELECT pk FROM t1 WHERE (a) IN (SELECT a FROM t2 WHERE pk > 0);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
2 SUBQUERY t2 range PRIMARY PRIMARY 4 NULL 2 Using index condition
2 MATERIALIZED t2 range PRIMARY PRIMARY 4 NULL 2 Using index condition
SELECT pk FROM t1 WHERE (a) IN (SELECT a FROM t2 WHERE pk > 0);
pk
2
@ -1892,7 +1979,7 @@ EXPLAIN
SELECT * FROM t2 WHERE (SELECT f3a FROM t3) NOT IN (SELECT f1a FROM t1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 ALL NULL NULL NULL NULL 2
3 SUBQUERY t1 ALL NULL NULL NULL NULL 2
3 MATERIALIZED t1 ALL NULL NULL NULL NULL 2
2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL no matching row in const table
SELECT * FROM t2 WHERE (SELECT f3a FROM t3) NOT IN (SELECT f1a FROM t1);
f2
@ -1909,7 +1996,7 @@ EXPLAIN
SELECT * FROM t2 WHERE (SELECT f3a, f3b FROM t3) NOT IN (SELECT f1a, f1b FROM t1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 ALL NULL NULL NULL NULL 2
3 SUBQUERY t1 ALL NULL NULL NULL NULL 2
3 MATERIALIZED t1 ALL NULL NULL NULL NULL 2
2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL no matching row in const table
SELECT * FROM t2 WHERE (SELECT f3a, f3b FROM t3) NOT IN (SELECT f1a, f1b FROM t1);
f2
@ -1938,7 +2025,7 @@ SELECT (f1, f2, f3) NOT IN
FROM t2;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 system NULL NULL NULL NULL 1
2 SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using filesort
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 2 Using filesort
SELECT (f1, f2, f3) NOT IN
(SELECT COUNT(DISTINCT f2), f1, f3 FROM t1 GROUP BY f1, f3)
FROM t2;
@ -1961,7 +2048,7 @@ EXPLAIN EXTENDED
SELECT MAX(t1.b) AS max_res FROM t1 WHERE (9) IN (SELECT a FROM t2);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 index NULL b 5 NULL 2 100.00 Using index
2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 100.00
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 100.00
Warnings:
Note 1003 select max(`test`.`t1`.`b`) AS `max_res` from `test`.`t1` where <expr_cache><9>(<in_optimizer>(9,9 in ( <materialize> (select `test`.`t2`.`a` from `test`.`t2` ), <primary_index_lookup>(9 in <temporary table> on distinct_key where ((9 = `<subquery2>`.`a`))))))
set @@optimizer_switch='materialization=off,in_to_exists=on,semijoin=off';
@ -1989,7 +2076,7 @@ FROM t1
WHERE (a, b) NOT IN (SELECT a, b FROM t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where
2 SUBQUERY t2 ALL NULL NULL NULL NULL 2
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2
SELECT *
FROM t1
WHERE (a, b) NOT IN (SELECT a, b FROM t2);
@ -2001,7 +2088,7 @@ SELECT a, b, (a, b) NOT IN (SELECT a, b FROM t2) as sq
FROM t1;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2
2 SUBQUERY t2 ALL NULL NULL NULL NULL 2
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2
SELECT a, b, (a, b) NOT IN (SELECT a, b FROM t2) as sq
FROM t1;
a b sq

38
mysql-test/r/subselect_mat_cost.result
View File

@ -65,7 +65,7 @@ Name LIKE 'L%') AND
surfacearea > 1000000;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY Country ALL Name,SurfaceArea NULL NULL NULL 239 Using where
2 SUBQUERY City ALL Population,Country NULL NULL NULL 4080 Using where
2 MATERIALIZED City ALL Population,Country NULL NULL NULL 4080 Using where
SELECT Name FROM Country
WHERE (Code IN (select Country from City where City.Population > 100000) OR
Name LIKE 'L%') AND
@ -134,7 +134,7 @@ City.name LIKE '%Island%');
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY Country ALL PRIMARY,SurfaceArea NULL NULL NULL 239 Using where
1 PRIMARY City ref Country Country 3 world.Country.Code 18 Using where
2 SUBQUERY CountryLanguage ALL Percentage,Language NULL NULL NULL 984 Using where
2 MATERIALIZED CountryLanguage ALL Percentage,Language NULL NULL NULL 984 Using where
SELECT *
FROM Country, City
WHERE City.Country = Country.Code AND
@ -204,7 +204,7 @@ OR
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY Country ALL PRIMARY,SurfaceArea NULL NULL NULL 239 Using where
1 PRIMARY City ref Country Country 3 world.Country.Code 18 Using where
3 SUBQUERY CountryLanguage index PRIMARY,Language PRIMARY 33 NULL 984 Using index
3 MATERIALIZED CountryLanguage index PRIMARY,Language PRIMARY 33 NULL 984 Using index
2 DEPENDENT SUBQUERY CountryLanguage unique_subquery PRIMARY,Percentage,Language PRIMARY 33 func,func 1 Using where
SELECT City.Name, Country.Name
FROM City,Country
@ -233,7 +233,7 @@ where City.id not in (select capital from Country
where capital is not null and population < 100000);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY City index NULL PRIMARY 4 NULL 4080 Using where; Using index
2 SUBQUERY Country ALL NULL NULL NULL NULL 239 Using where
2 MATERIALIZED Country ALL NULL NULL NULL NULL 239 Using where
Q2.2e:
Countries that speak French, but do not speak English
@ -247,7 +247,7 @@ AND CountryLanguage.Language = 'French'
AND Code = Country;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY CountryLanguage ref PRIMARY,Language Language 30 const 20 Using index condition
1 PRIMARY Country eq_ref PRIMARY PRIMARY 3 world.CountryLanguage.Country 1 Using index condition
1 PRIMARY Country eq_ref PRIMARY PRIMARY 3 world.CountryLanguage.Country 1 Using where
2 DEPENDENT SUBQUERY CountryLanguage unique_subquery PRIMARY,Language PRIMARY 33 func,const 1 Using index; Using where
SELECT Country.Name
FROM Country, CountryLanguage
@ -286,8 +286,8 @@ AND (CountryLanguage.Language = 'French' OR CountryLanguage.Language = 'Spanish'
AND Code = Country;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY CountryLanguage range PRIMARY,Language Language 30 NULL 45 Using index condition; Using where; Rowid-ordered scan
1 PRIMARY Country eq_ref PRIMARY PRIMARY 3 world.CountryLanguage.Country 1 Using index condition
2 SUBQUERY CountryLanguage ref PRIMARY,Language Language 30 const 47 Using index condition
1 PRIMARY Country eq_ref PRIMARY PRIMARY 3 world.CountryLanguage.Country 1 Using where
2 MATERIALIZED CountryLanguage ref PRIMARY,Language Language 30 const 47 Using index condition
SELECT Country.Name
FROM Country, CountryLanguage
WHERE Code NOT IN (SELECT Country FROM CountryLanguage WHERE Language = 'English')
@ -371,8 +371,8 @@ FROM City LEFT JOIN Country ON (Country = Code)
HAVING City.Name LIKE "Santa%");
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY CountryLanguage index NULL PRIMARY 33 NULL 984 Using where; Using index
2 SUBQUERY City ALL NULL NULL NULL NULL 4080
2 SUBQUERY Country eq_ref PRIMARY PRIMARY 3 world.City.Country 1 Using index
2 MATERIALIZED City ALL NULL NULL NULL NULL 4080
2 MATERIALIZED Country eq_ref PRIMARY PRIMARY 3 world.City.Country 1 Using index
select count(*)
from CountryLanguage
where (Language, Country) NOT IN
@ -399,10 +399,10 @@ WHERE Code = Country GROUP BY Code)
order by Country;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY CountryLanguage index NULL PRIMARY 33 NULL 984 Using where; Using index
3 SUBQUERY CountryLanguage index PRIMARY PRIMARY 33 NULL 984 Using index; Using temporary
3 SUBQUERY Country eq_ref PRIMARY PRIMARY 3 world.CountryLanguage.Country 1 Using index
2 SUBQUERY CountryLanguage index PRIMARY PRIMARY 33 NULL 984 Using index; Using temporary
2 SUBQUERY Country eq_ref PRIMARY PRIMARY 3 world.CountryLanguage.Country 1 Using index
3 MATERIALIZED CountryLanguage index PRIMARY PRIMARY 33 NULL 984 Using index; Using temporary
3 MATERIALIZED Country eq_ref PRIMARY PRIMARY 3 world.CountryLanguage.Country 1 Using index
2 MATERIALIZED CountryLanguage index PRIMARY PRIMARY 33 NULL 984 Using index; Using temporary
2 MATERIALIZED Country eq_ref PRIMARY PRIMARY 3 world.CountryLanguage.Country 1 Using index
select count(*)
from CountryLanguage
where
@ -429,7 +429,7 @@ capital is null);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY Country ALL NULL NULL NULL NULL 239 Using where
1 PRIMARY City eq_ref PRIMARY PRIMARY 4 world.Country.Capital 1 Using where
2 SUBQUERY City index NULL CityName 35 NULL 4080 Using index
2 MATERIALIZED City index NULL CityName 35 NULL 4080 Using index
select * from Country, City
where capital = id and
(City.name in (SELECT name FROM City
@ -450,7 +450,7 @@ WHERE Country.Code NOT IN
(SELECT Country FROM City GROUP BY Name HAVING COUNT(Name) = 1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY Country ALL NULL NULL NULL NULL 239 Using where
2 SUBQUERY City ALL NULL NULL NULL NULL 4080 Using temporary
2 MATERIALIZED City ALL NULL NULL NULL NULL 4080 Using temporary
SELECT Name
FROM Country
WHERE Country.Code NOT IN
@ -480,7 +480,7 @@ from City
where City.population > 10000000;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY City range Population Population 5 NULL 4 Using index condition; Rowid-ordered scan
2 SUBQUERY Country ALL NULL NULL NULL NULL 239 Using where
2 MATERIALIZED Country ALL NULL NULL NULL NULL 239 Using where
select Name, City.id in (select capital from Country where capital is not null) as is_capital
from City
where City.population > 10000000;
@ -512,9 +512,9 @@ FROM City JOIN Country ON City.Country = Country.Code
GROUP BY City.Name
HAVING City.Name IN (select Name from Country where population < 1000000);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY City ALL Country NULL NULL NULL 4080 Using temporary; Using filesort
1 PRIMARY Country eq_ref PRIMARY PRIMARY 3 world.City.Country 1 Using index
2 SUBQUERY Country ALL Name NULL NULL NULL 239 Using where
1 PRIMARY Country index PRIMARY PRIMARY 3 NULL 239 Using index; Using temporary; Using filesort
1 PRIMARY City ref Country Country 3 world.Country.Code 18
2 MATERIALIZED Country ALL Name NULL NULL NULL 239 Using where
SELECT City.Name, City.Population
FROM City JOIN Country ON City.Country = Country.Code
GROUP BY City.Name

24
mysql-test/r/subselect_mat_cost_bugs.result
View File

@ -141,14 +141,14 @@ CREATE TABLE t3 ( f2 varchar(1)) ;
EXPLAIN SELECT f2 FROM t3 WHERE (
SELECT MAX( pk ) FROM t1
WHERE EXISTS (
SELECT DISTINCT f1
FROM t2
SELECT max(f1)
FROM t2 GROUP BY f1
)
) IS NULL ;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
2 SUBQUERY t1 system NULL NULL NULL NULL 1
3 SUBQUERY t2 ALL NULL NULL NULL NULL 2 Using temporary
3 SUBQUERY t2 ALL NULL NULL NULL NULL 2 Using temporary; Using filesort
drop table t1, t2, t3;
#
# LP BUG#715034 Item_sum_distinct::clear(): Assertion `tree != 0' failed
@ -156,6 +156,8 @@ drop table t1, t2, t3;
CREATE TABLE t2 ( f2 int(11)) ;
CREATE TABLE t1 ( f3 int(11), KEY (f3)) ;
INSERT INTO t1 VALUES (6),(4);
set @tmp_optimizer_switch=@@optimizer_switch;
set optimizer_switch='derived_merge=off,derived_with_keys=off';
EXPLAIN
SELECT * FROM (SELECT * FROM t2) AS a2
WHERE (SELECT distinct SUM(distinct f3 ) FROM t1);
@ -171,6 +173,7 @@ id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2
3 SUBQUERY t1 index NULL f3 5 NULL 2 Using index
2 DERIVED t2 ALL NULL NULL NULL NULL 2
set optimizer_switch=@tmp_optimizer_switch;
drop table t1,t2;
#
# LP BUG#715027 Assertion `!table || (!table->read_set || bitmap_is_set(table->read_set, field_index))' failed
@ -179,6 +182,8 @@ CREATE TABLE t1 ( f1 int(11), PRIMARY KEY (f1)) ;
INSERT INTO t1 VALUES (28),(29);
CREATE TABLE t2 ( f2 int(11), f3 int(11), f10 varchar(1)) ;
INSERT INTO t2 VALUES (NULL,6,'f'),(4,2,'d');
set @tmp_optimizer_switch=@@optimizer_switch;
set optimizer_switch='derived_merge=off,derived_with_keys=off';
EXPLAIN
SELECT alias2.f2 AS field1
FROM t1 AS alias1 JOIN ( SELECT * FROM t2 ) AS alias2 ON alias2.f3 = alias1.f1
@ -206,6 +211,7 @@ field1
Warnings:
Warning 1292 Truncated incorrect INTEGER value: 'f'
Warning 1292 Truncated incorrect INTEGER value: 'd'
set optimizer_switch=@tmp_optimizer_switch;
drop table t1,t2;
#
# LP BUG#718578 Yet another Assertion `!table ||
@ -257,8 +263,8 @@ WHERE alias1.f11 OR alias1.f3 = 50 AND alias1.f10
);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where
2 SUBQUERY alias1 ALL NULL NULL NULL NULL 2 Using where
2 SUBQUERY alias2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join)
2 MATERIALIZED alias1 ALL NULL NULL NULL NULL 2 Using where
2 MATERIALIZED alias2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join)
SELECT * FROM t2
WHERE ( f12 ) IN (
SELECT alias2.f3
@ -277,8 +283,8 @@ FROM t1 AS alias1, t1 AS alias2
WHERE (alias2.f10 = alias1.f11) AND (alias1.f11 OR alias1.f3 = 50 AND alias1.f10));
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where
2 SUBQUERY alias1 ALL NULL NULL NULL NULL 2 Using where
2 SUBQUERY alias2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join)
2 MATERIALIZED alias1 ALL NULL NULL NULL NULL 2 Using where
2 MATERIALIZED alias2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join)
SELECT * FROM t2
WHERE ( f12 ) IN (
SELECT alias2.f3
@ -383,14 +389,14 @@ set @@optimizer_switch='in_to_exists=off,materialization=on,partial_match_rowid_
explain select * from t1 where c1 = 'a2' and (c1, c2) not in (select * from t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where
2 SUBQUERY t2 ALL NULL NULL NULL NULL 2
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2
select * from t1 where c1 = 'a2' and (c1, c2) not in (select * from t2);
c1 c2
set @@optimizer_switch='in_to_exists=off,materialization=on,partial_match_rowid_merge=on,partial_match_table_scan=off';
explain select * from t1 where c1 = 'a2' and (c1, c2) not in (select * from t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where
2 SUBQUERY t2 ALL NULL NULL NULL NULL 2
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2
select * from t1 where c1 = 'a2' and (c1, c2) not in (select * from t2);
c1 c2
drop table t1, t2;

299
mysql-test/r/subselect_no_mat.result
View File

@ -3,11 +3,14 @@ select @@optimizer_switch like '%materialization=on%';
1
set optimizer_switch='materialization=off';
set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
set join_cache_level=1;
set @join_cache_level_for_subselect_test=@@join_cache_level;
drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t11,t12;
drop view if exists v2;
set @subselect_tmp=@@optimizer_switch;
set @@optimizer_switch=ifnull(@optimizer_switch_for_subselect_test,
"semijoin=on,firstmatch=on,loosescan=on,semijoin_with_cache=on,partial_match_rowid_merge=off,partial_match_table_scan=off");
set join_cache_level=@join_cache_level_for_subselect_test;
set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
select (select 2);
(select 2)
@ -206,6 +209,8 @@ select (select t3.a from t3 where a<8 order by 1 desc limit 1), a from
(select * from t2 where a>1) as tt;
(select t3.a from t3 where a<8 order by 1 desc limit 1) a
7 2
set @tmp_optimizer_switch=@@optimizer_switch;
set optimizer_switch='derived_merge=off,derived_with_keys=off';
explain extended select (select t3.a from t3 where a<8 order by 1 desc limit 1), a from
(select * from t2 where a>1) as tt;
id select_type table type possible_keys key key_len ref rows filtered Extra
@ -214,6 +219,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
2 SUBQUERY t3 ALL NULL NULL NULL NULL 3 100.00 Using where; Using filesort
Warnings:
Note 1003 select (select `test`.`t3`.`a` from `test`.`t3` where (`test`.`t3`.`a` < 8) order by 1 desc limit 1) AS `(select t3.a from t3 where a<8 order by 1 desc limit 1)`,`tt`.`a` AS `a` from (select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` where (`test`.`t2`.`a` > 1)) `tt`
set optimizer_switch=@tmp_optimizer_switch;
select * from t1 where t1.a=(select t2.a from t2 where t2.b=(select max(a) from t3) order by 1 desc limit 1);
a
2
@ -1375,7 +1381,7 @@ create table t1 (id int not null auto_increment primary key, salary int, key(sal
insert into t1 (salary) values (100),(1000),(10000),(10),(500),(5000),(50000);
explain extended SELECT id FROM t1 where salary = (SELECT MAX(salary) FROM t1);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ref salary salary 5 const 0 0.00 Using index condition
1 PRIMARY t1 ref salary salary 5 const 0 0.00 Using where
2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away
Warnings:
Note 1003 select `test`.`t1`.`id` AS `id` from `test`.`t1` where (`test`.`t1`.`salary` = (select max(`test`.`t1`.`salary`) from `test`.`t1`))
@ -1400,7 +1406,7 @@ insert into t1 values (1,0), (2,0), (3,0);
insert into t2 values (1,1), (2,1), (3,1), (2,2);
update ignore t1 set b=(select b from t2 where t1.a=t2.a);
Warnings:
Error 1242 Subquery returns more than 1 row
Warning 1242 Subquery returns more than 1 row
select * from t1;
a b
1 1
@ -1663,7 +1669,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>(<in_optimizer>(`test`.`t3`.`a`,(<max>(select NULL from `test`.`t2` group by 1) > <cache>(`test`.`t3`.`a`))))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>(<in_optimizer>(`test`.`t3`.`a`,((select max(NULL) from `test`.`t2`) > <cache>(`test`.`t3`.`a`))))
select * from t3 where a >= some (select b from t2 group by 1);
a
explain extended select * from t3 where a >= some (select b from t2 group by 1);
@ -1671,7 +1677,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(`test`.`t3`.`a`,(<min>(select NULL from `test`.`t2` group by 1) <= <cache>(`test`.`t3`.`a`))))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(`test`.`t3`.`a`,((select min(NULL) from `test`.`t2`) <= <cache>(`test`.`t3`.`a`))))
select * from t3 where NULL >= any (select b from t2);
a
explain extended select * from t3 where NULL >= any (select b from t2);
@ -1687,7 +1693,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,(<min>(select NULL from `test`.`t2` group by 1) <= NULL)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,((select min(NULL) from `test`.`t2`) <= NULL)))
select * from t3 where NULL >= some (select b from t2);
a
explain extended select * from t3 where NULL >= some (select b from t2);
@ -1703,7 +1709,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,(<min>(select NULL from `test`.`t2` group by 1) <= NULL)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,((select min(NULL) from `test`.`t2`) <= NULL)))
insert into t2 values (2,2), (2,1), (3,3), (3,1);
select * from t3 where a > all (select max(b) from t2 group by a);
a
@ -2980,9 +2986,9 @@ Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two` from `tes
explain extended SELECT one,two,ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = '0' group by one,two) as 'test' from t1;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00
2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where; Using temporary
2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<expr_cache><`test`.`t1`.`one`,`test`.`t1`.`two`>(<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where (`test`.`t2`.`flag` = '0') group by `test`.`t2`.`one`,`test`.`t2`.`two` having (trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`))) and trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`)))))) AS `test` from `test`.`t1`
Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<expr_cache><`test`.`t1`.`one`,`test`.`t1`.`two`>(<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where ((`test`.`t2`.`flag` = '0') and trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`)))) having (trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`)))))) AS `test` from `test`.`t1`
DROP TABLE t1,t2;
set optimizer_switch=@tmp11867_optimizer_switch;
CREATE TABLE t1 (a char(5), b char(5));
@ -4358,6 +4364,9 @@ LEFT(t1.a1,1)
SELECT a2 FROM t2 WHERE t2.a2 IN (SELECT t1.a1 FROM t1,t3 WHERE t1.b1=t3.a3);
a2
DROP TABLE t1, t2, t3;
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='semijoin_with_cache=off';
SET optimizer_switch='materialization=off';
CREATE TABLE t1 (a CHAR(1), b VARCHAR(10));
INSERT INTO t1 VALUES ('a', 'aa');
INSERT INTO t1 VALUES ('a', 'aaa');
@ -4389,6 +4398,7 @@ id select_type table type possible_keys key key_len ref rows Extra
SELECT a,b FROM t1 WHERE b IN (SELECT a FROM t1 WHERE LENGTH(a)<500);
a b
DROP TABLE t1,t2;
SET optimizer_switch= @save_optimizer_switch;
CREATE TABLE t1(a INT, b INT);
INSERT INTO t1 VALUES (1,1), (1,2), (2,3), (2,4);
EXPLAIN
@ -4514,18 +4524,21 @@ a
drop table t1, t2;
CREATE TABLE t1 (a INT);
INSERT INTO t1 VALUES (1),(2);
EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT 1 FROM t1 GROUP BY a);
SET @save_join_cache_level=@@join_cache_level;
SET join_cache_level=0;
EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT min(a) FROM t1 GROUP BY a);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using temporary
Warnings:
Note 1003 select 1 AS `1` from `test`.`t1` where <expr_cache><1>(<in_optimizer>(1,<exists>(select 1 from `test`.`t1` group by `test`.`t1`.`a` having (1 = <ref_null_helper>(1)))))
EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT 1 FROM t1 WHERE a > 3 GROUP BY a);
Note 1003 select 1 AS `1` from `test`.`t1` where <expr_cache><1>(<in_optimizer>(1,<exists>(select min(`test`.`t1`.`a`) from `test`.`t1` group by `test`.`t1`.`a` having (1 = <ref_null_helper>(min(`test`.`t1`.`a`))))))
EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT min(a) FROM t1 WHERE a > 3 GROUP BY a);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using where; Using temporary
Warnings:
Note 1003 select 1 AS `1` from `test`.`t1` where <expr_cache><1>(<in_optimizer>(1,<exists>(select 1 from `test`.`t1` where (`test`.`t1`.`a` > 3) group by `test`.`t1`.`a` having (1 = <ref_null_helper>(1)))))
Note 1003 select 1 AS `1` from `test`.`t1` where <expr_cache><1>(<in_optimizer>(1,<exists>(select min(`test`.`t1`.`a`) from `test`.`t1` where (`test`.`t1`.`a` > 3) group by `test`.`t1`.`a` having (1 = <ref_null_helper>(min(`test`.`t1`.`a`))))))
SET join_cache_level=@save_join_cache_level;
DROP TABLE t1;
#
# Bug#45061: Incorrectly market field caused wrong result.
@ -4601,6 +4614,32 @@ pk int_key
3 3
7 3
DROP TABLE t1,t2;
#
# Bug#12329653
# EXPLAIN, UNION, PREPARED STATEMENT, CRASH, SQL_FULL_GROUP_BY
#
CREATE TABLE t1(a1 int);
INSERT INTO t1 VALUES (1),(2);
SELECT @@session.sql_mode INTO @old_sql_mode;
SET SESSION sql_mode='ONLY_FULL_GROUP_BY';
SELECT 1 FROM t1 WHERE 1 < SOME (SELECT a1 FROM t1);
1
1
1
PREPARE stmt FROM
'SELECT 1 UNION ALL
SELECT 1 FROM t1
ORDER BY
(SELECT 1 FROM t1 AS t1_0
WHERE 1 < SOME (SELECT a1 FROM t1)
)' ;
EXECUTE stmt ;
ERROR 21000: Subquery returns more than 1 row
EXECUTE stmt ;
ERROR 21000: Subquery returns more than 1 row
SET SESSION sql_mode=@old_sql_mode;
DEALLOCATE PREPARE stmt;
DROP TABLE t1;
End of 5.0 tests.
create table t_out (subcase char(3),
a1 char(2), b1 char(2), c1 char(2));
@ -4843,8 +4882,6 @@ SELECT * FROM t1
WHERE EXISTS (SELECT DISTINCT a FROM t2 WHERE t1.a < t2.a ORDER BY b);
pk a
1 10
3 30
2 20
DROP TABLE t1,t2;
CREATE TABLE t1 (a INT, b INT, PRIMARY KEY (a), KEY b (b));
INSERT INTO t1 VALUES (1,NULL), (9,NULL);
@ -5553,8 +5590,8 @@ explain SELECT * FROM ot1,ot4
WHERE (ot1.a,ot4.a) IN (SELECT it2.a,it3.a
FROM it2,it3);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY ot1 ALL NULL NULL NULL NULL 2 Start temporary
1 PRIMARY it2 ALL NULL NULL NULL NULL 4 Using where; Using join buffer (flat, BNL join)
1 PRIMARY ot1 ALL NULL NULL NULL NULL 2
1 PRIMARY it2 ALL NULL NULL NULL NULL 4 Using where; Start temporary; Using join buffer (flat, BNL join)
1 PRIMARY it3 ALL NULL NULL NULL NULL 6 Using join buffer (flat, BNL join)
1 PRIMARY ot4 ALL NULL NULL NULL NULL 8 Using where; End temporary; Using join buffer (flat, BNL join)
DROP TABLE IF EXISTS ot1, ot4, it2, it3;
@ -5597,16 +5634,19 @@ CREATE TABLE t2 (pk INTEGER PRIMARY KEY, i INTEGER NOT NULL);
INSERT INTO t2 VALUES (11,1);
INSERT INTO t2 VALUES (12,2);
INSERT INTO t2 VALUES (15,4);
SET @save_join_cache_level=@@join_cache_level;
SET join_cache_level=0;
EXPLAIN SELECT * FROM t1 WHERE pk IN (SELECT it.pk FROM t2 JOIN t2 AS it ON 1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL PRIMARY NULL NULL NULL 3 Start temporary
1 PRIMARY t2 index NULL PRIMARY 4 NULL 3 Using index; Using join buffer (flat, BNL join)
1 PRIMARY it eq_ref PRIMARY PRIMARY 4 test.t1.pk 1 Using index; End temporary
1 PRIMARY t1 ALL PRIMARY NULL NULL NULL 3
1 PRIMARY it eq_ref PRIMARY PRIMARY 4 test.t1.pk 1 Using index
1 PRIMARY t2 index NULL PRIMARY 4 NULL 3 Using index; FirstMatch(it)
SELECT * FROM t1 WHERE pk IN (SELECT it.pk FROM t2 JOIN t2 AS it ON 1);
pk i
11 0
12 5
15 0
SET join_cache_level=@save_join_cache_level;
DROP table t1,t2;
#
# Bug#751350: crash with pushed condition for outer references when
@ -5614,18 +5654,21 @@ DROP table t1,t2;
#
CREATE TABLE t1 (a int, b int) ;
INSERT INTO t1 VALUES (0,0),(0,0);
set @optimizer_switch_save=@@optimizer_switch;
set @@optimizer_switch='semijoin=off,materialization=on,in_to_exists=on';
EXPLAIN
SELECT b FROM t1
WHERE ('0') IN ( SELECT a FROM t1 GROUP BY a )
GROUP BY b;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using temporary; Using filesort
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using temporary
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using where
SELECT b FROM t1
WHERE ('0') IN ( SELECT a FROM t1 GROUP BY a )
GROUP BY b;
b
0
set @@optimizer_switch=@optimizer_switch_save;
DROP TABLE t1;
#
# Bug #11765713 58705:
@ -5837,6 +5880,8 @@ CREATE TABLE t2 (a int, b int) ;
INSERT INTO t2 VALUES (20,9),(20,9);
create table t3 (d int, e int);
insert into t3 values (2, 9), (3,10);
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='outer_join_with_cache=off';
EXPLAIN
SELECT t2.b , t1.c
FROM t2 LEFT JOIN t1 ON t1.c < 3
@ -5851,9 +5896,9 @@ WHERE (t2.b, t1.c) NOT IN (SELECT * from t3);
b c
9 NULL
9 NULL
SET optimizer_switch=@save_optimizer_switch;
drop table t1, t2, t3;
End of 5.3 tests
End of 5.5 tests.
#
# Bug#12763207 - ASSERT IN SUBSELECT::SINGLE_VALUE_TRANSFORMER
#
@ -5886,10 +5931,13 @@ DROP TABLE t1, t2;
CREATE TABLE t1 (a INT, b INT, INDEX (a));
INSERT INTO t1 VALUES (3, 10), (2, 20), (7, 10), (5, 20);
set @tmp_optimizer_switch=@@optimizer_switch;
set optimizer_switch='derived_merge=off,derived_with_keys=off';
EXPLAIN SELECT * FROM (SELECT * FROM t1 WHERE a=7) t;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2
2 DERIVED t1 ref a a 5 const 1
set optimizer_switch=@tmp_optimizer_switch;
EXPLAIN SELECT * FROM t1 WHERE EXISTS (SELECT * FROM t1 WHERE a=7);
id select_type table type possible_keys key key_len ref rows Extra
@ -5968,7 +6016,7 @@ WHERE f1_key != table2.f1_key AND f1_key >= table1.f1 );
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY table1 ALL NULL NULL NULL NULL 2
1 PRIMARY table2 index NULL f1_key 4 NULL 10 Using where; Using index; Using join buffer (flat, BNL join)
2 DEPENDENT SUBQUERY t2 range f1_key f1_key 4 NULL 6 Range checked for each record (index map: 0x1); Using temporary
2 DEPENDENT SUBQUERY t2 index f1_key f1_key 4 NULL 10 Using where; Using index
DROP TABLE t1,t2;
#
# lp:826279: assertion failure with GROUP BY a result of subquery
@ -6030,9 +6078,216 @@ set @@optimizer_switch='in_to_exists=on,semijoin=off,materialization=off,subquer
select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1)))))))))))))))))))))))))))));
a
1
set @@optimizer_switch=@subselect_tmp;
drop table t1;
#
# LP BUG#894397 Wrong result with in_to_exists, constant table , semijoin=OFF,materialization=OFF
#
CREATE TABLE t1 (a varchar(3));
INSERT INTO t1 VALUES ('AAA'),('BBB');
CREATE TABLE t2 (a varchar(3));
INSERT INTO t2 VALUES ('CCC');
set @@optimizer_switch='semijoin=off,materialization=off,in_to_exists=on,subquery_cache=off';
SELECT * FROM t1 WHERE t1.a IN (SELECT t2.a FROM t2 WHERE t2.a < 'ZZZ');
a
set @@optimizer_switch=@subselect_tmp;
drop table t1, t2;
#
# LP bug #859375: Assertion `0' failed in st_select_lex_unit::optimize
# with view , UNION and prepared statement (rewriting fake_select
# condition).
#
CREATE TABLE t1 ( f1 int NOT NULL, f4 varchar(1) NOT NULL) ;
INSERT INTO t1 VALUES (6,'d'),(7,'y');
CREATE TABLE t2 ( f1 int NOT NULL, f2 int NOT NULL) ;
INSERT INTO t2 VALUES (10,7);
CREATE VIEW v2 AS SELECT * FROM t2;
PREPARE st1 FROM "
SELECT *
FROM t1
LEFT JOIN v2 ON ( v2.f2 = t1.f1 )
WHERE v2.f1 NOT IN (
SELECT 1 UNION
SELECT 247
)
";
EXECUTE st1;
f1 f4 f1 f2
7 y 10 7
deallocate prepare st1;
DROP VIEW v2;
DROP TABLE t1,t2;
#
# LP bug #887458 Crash in subselect_union_engine::no_rows with
# double UNION and join_cache_level=3,8
# (IN/ALL/ANY optimizations should not be applied to fake_select)
CREATE TABLE t2 ( a int, b varchar(1)) ;
INSERT IGNORE INTO t2 VALUES (8,'y'),(8,'y');
CREATE TABLE t1 ( b varchar(1)) ;
INSERT IGNORE INTO t1 VALUES (NULL),(NULL);
set @save_join_cache_level=@@join_cache_level;
SET SESSION join_cache_level=3;
SELECT *
FROM t1, t2
WHERE t2.b IN (
SELECT 'm' UNION
SELECT 'm'
) OR t1.b <> SOME (
SELECT 'v' UNION
SELECT 't'
);
b a b
set @@join_cache_level= @save_join_cache_level;
drop table t1,t2;
#
# LP bug #885162 Got error 124 from storage engine with UNION inside
# subquery and join_cache_level=3..8
# (IN/ALL/ANY optimizations should not be applied to fake_select)
#
CREATE TABLE t1 (
f1 varchar(1) DEFAULT NULL
);
INSERT INTO t1 VALUES ('c');
set @save_join_cache_level=@@join_cache_level;
SET SESSION join_cache_level=8;
SELECT * FROM t1 WHERE t1.f1 IN ( SELECT 'k' UNION SELECT 'e' );
f1
set @@join_cache_level= @save_join_cache_level;
drop table t1;
#
# LP BUG#747278 incorrect values of the NULL (no rows) single
# row subquery requested via element_index() interface
#
CREATE TABLE t1 (f1a int, f1b int) ;
INSERT IGNORE INTO t1 VALUES (1,1),(2,2);
CREATE TABLE t2 ( f2 int);
INSERT IGNORE INTO t2 VALUES (3),(4);
CREATE TABLE t3 (f3a int default 1, f3b int default 2);
INSERT INTO t3 VALUES (1,1),(2,2);
set @old_optimizer_switch = @@session.optimizer_switch;
set @@optimizer_switch='materialization=on,partial_match_rowid_merge=on,partial_match_table_scan=off,subquery_cache=off,semijoin=off';
SELECT (SELECT f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a FROM t1) FROM t2;
(SELECT f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a FROM t1)
NULL
NULL
SELECT (SELECT f3a,f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a,f1a FROM t1) FROM t2;
(SELECT f3a,f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a,f1a FROM t1)
NULL
NULL
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1) FROM t2;
(SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1)
NULL
NULL
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1);
(SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1)
NULL
SELECT (SELECT f3a FROM t3 where f3a > 3) IN (SELECT f1a FROM t1) FROM t2;
(SELECT f3a FROM t3 where f3a > 3) IN (SELECT f1a FROM t1)
NULL
NULL
SELECT (SELECT f3a,f3a FROM t3 where f3a > 3) IN (SELECT f1a,f1a FROM t1) FROM t2;
(SELECT f3a,f3a FROM t3 where f3a > 3) IN (SELECT f1a,f1a FROM t1)
NULL
NULL
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1) FROM t2;
(SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1)
NULL
NULL
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1);
(SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1)
NULL
set @@session.optimizer_switch=@old_optimizer_switch;
SELECT (SELECT f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a FROM t1) FROM t2;
(SELECT f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a FROM t1)
NULL
NULL
SELECT (SELECT f3a,f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a,f1a FROM t1) FROM t2;
(SELECT f3a,f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a,f1a FROM t1)
NULL
NULL
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1) FROM t2;
(SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1)
NULL
NULL
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1);
(SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1)
NULL
SELECT (SELECT f3a FROM t3 where f3a > 3) IN (SELECT f1a FROM t1) FROM t2;
(SELECT f3a FROM t3 where f3a > 3) IN (SELECT f1a FROM t1)
NULL
NULL
SELECT (SELECT f3a,f3a FROM t3 where f3a > 3) IN (SELECT f1a,f1a FROM t1) FROM t2;
(SELECT f3a,f3a FROM t3 where f3a > 3) IN (SELECT f1a,f1a FROM t1)
NULL
NULL
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1) FROM t2;
(SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1)
NULL
NULL
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1);
(SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1)
NULL
select (null, null) = (null, null);
(null, null) = (null, null)
NULL
SELECT (SELECT f3a, f3a FROM t3 where f3a > 3) = (0, 0);
(SELECT f3a, f3a FROM t3 where f3a > 3) = (0, 0)
NULL
drop tables t1,t2,t3;
#
# LP BUG#825051 Wrong result with date/datetime and subquery with GROUP BY and in_to_exists
#
CREATE TABLE t1 (a date, KEY (a)) ;
INSERT INTO t1 VALUES ('2009-01-01'),('2009-02-02');
set @old_optimizer_switch = @@optimizer_switch;
SET @@optimizer_switch='semijoin=off,materialization=off,in_to_exists=on,subquery_cache=off';
EXPLAIN SELECT * FROM t1 WHERE a IN (SELECT a AS field1 FROM t1 GROUP BY field1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 index NULL a 4 NULL 2 Using where; Using index
2 DEPENDENT SUBQUERY t1 index_subquery a a 4 func 2 Using index
SELECT * FROM t1 WHERE a IN (SELECT a AS field1 FROM t1 GROUP BY field1);
a
2009-01-01
2009-02-02
SET @@optimizer_switch='semijoin=off,materialization=on,in_to_exists=off,subquery_cache=off';
EXPLAIN SELECT * FROM t1 WHERE a IN (SELECT a AS field1 FROM t1 GROUP BY field1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 index NULL a 4 NULL 2 Using where; Using index
2 MATERIALIZED t1 index NULL a 4 NULL 2 Using index
SELECT * FROM t1 WHERE a IN (SELECT a AS field1 FROM t1 GROUP BY field1);
a
2009-01-01
2009-02-02
set @@optimizer_switch=@old_optimizer_switch;
drop table t1;
#
# LP BUG#908269 incorrect condition in case of subqueries depending
# on constant tables
#
CREATE TABLE t1 ( a INT );
INSERT INTO t1 VALUES (1),(5);
CREATE TABLE t2 ( b INT ) ENGINE=MyISAM;
INSERT INTO t2 VALUES (1);
CREATE TABLE t3 ( c INT );
INSERT INTO t3 VALUES (4),(5);
SET optimizer_switch='subquery_cache=off';
SELECT ( SELECT b FROM t2 WHERE b = a OR EXISTS ( SELECT c FROM t3 WHERE c = b ) ) FROM t1;
( SELECT b FROM t2 WHERE b = a OR EXISTS ( SELECT c FROM t3 WHERE c = b ) )
1
NULL
SELECT ( SELECT b FROM t2 WHERE b = a OR b * 0) FROM t1;
( SELECT b FROM t2 WHERE b = a OR b * 0)
1
NULL
SELECT ( SELECT b FROM t2 WHERE b = a OR rand() * 0) FROM t1;
( SELECT b FROM t2 WHERE b = a OR rand() * 0)
1
NULL
drop table t1,t2,t3;
# return optimizer switch changed in the beginning of this test
set optimizer_switch=@subselect_tmp;
set optimizer_switch=default;
select @@optimizer_switch like '%materialization=on%';
@@optimizer_switch like '%materialization=on%'
1
set @join_cache_level_for_subselect_test=NULL;

296
mysql-test/r/subselect_no_opts.result
View File

@ -1,9 +1,12 @@
set @optimizer_switch_for_subselect_test='materialization=off,semijoin=off,subquery_cache=off,mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
set join_cache_level=1;
set @join_cache_level_for_subselect_test=@@join_cache_level;
drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t11,t12;
drop view if exists v2;
set @subselect_tmp=@@optimizer_switch;
set @@optimizer_switch=ifnull(@optimizer_switch_for_subselect_test,
"semijoin=on,firstmatch=on,loosescan=on,semijoin_with_cache=on,partial_match_rowid_merge=off,partial_match_table_scan=off");
set join_cache_level=@join_cache_level_for_subselect_test;
set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
select (select 2);
(select 2)
@ -202,6 +205,8 @@ select (select t3.a from t3 where a<8 order by 1 desc limit 1), a from
(select * from t2 where a>1) as tt;
(select t3.a from t3 where a<8 order by 1 desc limit 1) a
7 2
set @tmp_optimizer_switch=@@optimizer_switch;
set optimizer_switch='derived_merge=off,derived_with_keys=off';
explain extended select (select t3.a from t3 where a<8 order by 1 desc limit 1), a from
(select * from t2 where a>1) as tt;
id select_type table type possible_keys key key_len ref rows filtered Extra
@ -210,6 +215,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
2 SUBQUERY t3 ALL NULL NULL NULL NULL 3 100.00 Using where; Using filesort
Warnings:
Note 1003 select (select `test`.`t3`.`a` from `test`.`t3` where (`test`.`t3`.`a` < 8) order by 1 desc limit 1) AS `(select t3.a from t3 where a<8 order by 1 desc limit 1)`,`tt`.`a` AS `a` from (select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` where (`test`.`t2`.`a` > 1)) `tt`
set optimizer_switch=@tmp_optimizer_switch;
select * from t1 where t1.a=(select t2.a from t2 where t2.b=(select max(a) from t3) order by 1 desc limit 1);
a
2
@ -1371,7 +1377,7 @@ create table t1 (id int not null auto_increment primary key, salary int, key(sal
insert into t1 (salary) values (100),(1000),(10000),(10),(500),(5000),(50000);
explain extended SELECT id FROM t1 where salary = (SELECT MAX(salary) FROM t1);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ref salary salary 5 const 0 0.00 Using index condition
1 PRIMARY t1 ref salary salary 5 const 0 0.00 Using where
2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away
Warnings:
Note 1003 select `test`.`t1`.`id` AS `id` from `test`.`t1` where (`test`.`t1`.`salary` = (select max(`test`.`t1`.`salary`) from `test`.`t1`))
@ -1396,7 +1402,7 @@ insert into t1 values (1,0), (2,0), (3,0);
insert into t2 values (1,1), (2,1), (3,1), (2,2);
update ignore t1 set b=(select b from t2 where t1.a=t2.a);
Warnings:
Error 1242 Subquery returns more than 1 row
Warning 1242 Subquery returns more than 1 row
select * from t1;
a b
1 1
@ -1497,10 +1503,10 @@ a
explain extended select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t2 index NULL a 5 NULL 4 100.00 Using where; Using index
2 DEPENDENT SUBQUERY t1 ref a a 5 func 1001 100.00 Using index
2 DEPENDENT SUBQUERY t3 index a a 5 NULL 3 100.00 Using where; Using index; Using join buffer (flat, BNL join)
2 DEPENDENT SUBQUERY t3 index a a 5 NULL 3 100.00 Using where; Using index
2 DEPENDENT SUBQUERY t1 ref a a 10 func,test.t3.a 1167 100.00 Using index
Warnings:
Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <in_optimizer>(`test`.`t2`.`a`,<exists>(select `test`.`t1`.`a` from `test`.`t1` join `test`.`t3` where ((`test`.`t3`.`a` = `test`.`t1`.`b`) and (<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`))))
Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <in_optimizer>(`test`.`t2`.`a`,<exists>(select `test`.`t1`.`a` from `test`.`t1` join `test`.`t3` where ((`test`.`t1`.`b` = `test`.`t3`.`a`) and (<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`))))
insert into t1 values (3,31);
select * from t2 where t2.a in (select a from t1 where t1.b <> 30);
a
@ -1659,7 +1665,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>(<in_optimizer>(`test`.`t3`.`a`,(<max>(select NULL from `test`.`t2` group by 1) > <cache>(`test`.`t3`.`a`))))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>(<in_optimizer>(`test`.`t3`.`a`,((select max(NULL) from `test`.`t2`) > <cache>(`test`.`t3`.`a`))))
select * from t3 where a >= some (select b from t2 group by 1);
a
explain extended select * from t3 where a >= some (select b from t2 group by 1);
@ -1667,7 +1673,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(`test`.`t3`.`a`,(<min>(select NULL from `test`.`t2` group by 1) <= <cache>(`test`.`t3`.`a`))))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(`test`.`t3`.`a`,((select min(NULL) from `test`.`t2`) <= <cache>(`test`.`t3`.`a`))))
select * from t3 where NULL >= any (select b from t2);
a
explain extended select * from t3 where NULL >= any (select b from t2);
@ -1683,7 +1689,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,(<min>(select NULL from `test`.`t2` group by 1) <= NULL)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,((select min(NULL) from `test`.`t2`) <= NULL)))
select * from t3 where NULL >= some (select b from t2);
a
explain extended select * from t3 where NULL >= some (select b from t2);
@ -1699,7 +1705,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,(<min>(select NULL from `test`.`t2` group by 1) <= NULL)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,((select min(NULL) from `test`.`t2`) <= NULL)))
insert into t2 values (2,2), (2,1), (3,3), (3,1);
select * from t3 where a > all (select max(b) from t2 group by a);
a
@ -2976,9 +2982,9 @@ Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two` from `tes
explain extended SELECT one,two,ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = '0' group by one,two) as 'test' from t1;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00
2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where; Using temporary
2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where (`test`.`t2`.`flag` = '0') group by `test`.`t2`.`one`,`test`.`t2`.`two` having (trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`))) and trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`))))) AS `test` from `test`.`t1`
Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where ((`test`.`t2`.`flag` = '0') and trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`)))) having (trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`))))) AS `test` from `test`.`t1`
DROP TABLE t1,t2;
set optimizer_switch=@tmp11867_optimizer_switch;
CREATE TABLE t1 (a char(5), b char(5));
@ -4354,6 +4360,9 @@ LEFT(t1.a1,1)
SELECT a2 FROM t2 WHERE t2.a2 IN (SELECT t1.a1 FROM t1,t3 WHERE t1.b1=t3.a3);
a2
DROP TABLE t1, t2, t3;
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='semijoin_with_cache=off';
SET optimizer_switch='materialization=off';
CREATE TABLE t1 (a CHAR(1), b VARCHAR(10));
INSERT INTO t1 VALUES ('a', 'aa');
INSERT INTO t1 VALUES ('a', 'aaa');
@ -4385,6 +4394,7 @@ id select_type table type possible_keys key key_len ref rows Extra
SELECT a,b FROM t1 WHERE b IN (SELECT a FROM t1 WHERE LENGTH(a)<500);
a b
DROP TABLE t1,t2;
SET optimizer_switch= @save_optimizer_switch;
CREATE TABLE t1(a INT, b INT);
INSERT INTO t1 VALUES (1,1), (1,2), (2,3), (2,4);
EXPLAIN
@ -4510,18 +4520,21 @@ a
drop table t1, t2;
CREATE TABLE t1 (a INT);
INSERT INTO t1 VALUES (1),(2);
EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT 1 FROM t1 GROUP BY a);
SET @save_join_cache_level=@@join_cache_level;
SET join_cache_level=0;
EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT min(a) FROM t1 GROUP BY a);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using temporary
Warnings:
Note 1003 select 1 AS `1` from `test`.`t1` where <in_optimizer>(1,<exists>(select 1 from `test`.`t1` group by `test`.`t1`.`a` having (1 = <ref_null_helper>(1))))
EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT 1 FROM t1 WHERE a > 3 GROUP BY a);
Note 1003 select 1 AS `1` from `test`.`t1` where <in_optimizer>(1,<exists>(select min(`test`.`t1`.`a`) from `test`.`t1` group by `test`.`t1`.`a` having (1 = <ref_null_helper>(min(`test`.`t1`.`a`)))))
EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT min(a) FROM t1 WHERE a > 3 GROUP BY a);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using where; Using temporary
Warnings:
Note 1003 select 1 AS `1` from `test`.`t1` where <in_optimizer>(1,<exists>(select 1 from `test`.`t1` where (`test`.`t1`.`a` > 3) group by `test`.`t1`.`a` having (1 = <ref_null_helper>(1))))
Note 1003 select 1 AS `1` from `test`.`t1` where <in_optimizer>(1,<exists>(select min(`test`.`t1`.`a`) from `test`.`t1` where (`test`.`t1`.`a` > 3) group by `test`.`t1`.`a` having (1 = <ref_null_helper>(min(`test`.`t1`.`a`)))))
SET join_cache_level=@save_join_cache_level;
DROP TABLE t1;
#
# Bug#45061: Incorrectly market field caused wrong result.
@ -4597,6 +4610,32 @@ pk int_key
3 3
7 3
DROP TABLE t1,t2;
#
# Bug#12329653
# EXPLAIN, UNION, PREPARED STATEMENT, CRASH, SQL_FULL_GROUP_BY
#
CREATE TABLE t1(a1 int);
INSERT INTO t1 VALUES (1),(2);
SELECT @@session.sql_mode INTO @old_sql_mode;
SET SESSION sql_mode='ONLY_FULL_GROUP_BY';
SELECT 1 FROM t1 WHERE 1 < SOME (SELECT a1 FROM t1);
1
1
1
PREPARE stmt FROM
'SELECT 1 UNION ALL
SELECT 1 FROM t1
ORDER BY
(SELECT 1 FROM t1 AS t1_0
WHERE 1 < SOME (SELECT a1 FROM t1)
)' ;
EXECUTE stmt ;
ERROR 21000: Subquery returns more than 1 row
EXECUTE stmt ;
ERROR 21000: Subquery returns more than 1 row
SET SESSION sql_mode=@old_sql_mode;
DEALLOCATE PREPARE stmt;
DROP TABLE t1;
End of 5.0 tests.
create table t_out (subcase char(3),
a1 char(2), b1 char(2), c1 char(2));
@ -4839,8 +4878,6 @@ SELECT * FROM t1
WHERE EXISTS (SELECT DISTINCT a FROM t2 WHERE t1.a < t2.a ORDER BY b);
pk a
1 10
3 30
2 20
DROP TABLE t1,t2;
CREATE TABLE t1 (a INT, b INT, PRIMARY KEY (a), KEY b (b));
INSERT INTO t1 VALUES (1,NULL), (9,NULL);
@ -5593,16 +5630,19 @@ CREATE TABLE t2 (pk INTEGER PRIMARY KEY, i INTEGER NOT NULL);
INSERT INTO t2 VALUES (11,1);
INSERT INTO t2 VALUES (12,2);
INSERT INTO t2 VALUES (15,4);
SET @save_join_cache_level=@@join_cache_level;
SET join_cache_level=0;
EXPLAIN SELECT * FROM t1 WHERE pk IN (SELECT it.pk FROM t2 JOIN t2 AS it ON 1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 Using where
2 DEPENDENT SUBQUERY t2 index NULL PRIMARY 4 NULL 3 Using index
2 DEPENDENT SUBQUERY it eq_ref PRIMARY PRIMARY 4 func 1 Using index
2 DEPENDENT SUBQUERY t2 index NULL PRIMARY 4 NULL 3 Using index
SELECT * FROM t1 WHERE pk IN (SELECT it.pk FROM t2 JOIN t2 AS it ON 1);
pk i
11 0
12 5
15 0
SET join_cache_level=@save_join_cache_level;
DROP table t1,t2;
#
# Bug#751350: crash with pushed condition for outer references when
@ -5610,18 +5650,21 @@ DROP table t1,t2;
#
CREATE TABLE t1 (a int, b int) ;
INSERT INTO t1 VALUES (0,0),(0,0);
set @optimizer_switch_save=@@optimizer_switch;
set @@optimizer_switch='semijoin=off,materialization=on,in_to_exists=on';
EXPLAIN
SELECT b FROM t1
WHERE ('0') IN ( SELECT a FROM t1 GROUP BY a )
GROUP BY b;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using temporary; Using filesort
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using temporary
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using where
SELECT b FROM t1
WHERE ('0') IN ( SELECT a FROM t1 GROUP BY a )
GROUP BY b;
b
0
set @@optimizer_switch=@optimizer_switch_save;
DROP TABLE t1;
#
# Bug #11765713 58705:
@ -5833,6 +5876,8 @@ CREATE TABLE t2 (a int, b int) ;
INSERT INTO t2 VALUES (20,9),(20,9);
create table t3 (d int, e int);
insert into t3 values (2, 9), (3,10);
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='outer_join_with_cache=off';
EXPLAIN
SELECT t2.b , t1.c
FROM t2 LEFT JOIN t1 ON t1.c < 3
@ -5847,9 +5892,9 @@ WHERE (t2.b, t1.c) NOT IN (SELECT * from t3);
b c
9 NULL
9 NULL
SET optimizer_switch=@save_optimizer_switch;
drop table t1, t2, t3;
End of 5.3 tests
End of 5.5 tests.
#
# Bug#12763207 - ASSERT IN SUBSELECT::SINGLE_VALUE_TRANSFORMER
#
@ -5882,10 +5927,13 @@ DROP TABLE t1, t2;
CREATE TABLE t1 (a INT, b INT, INDEX (a));
INSERT INTO t1 VALUES (3, 10), (2, 20), (7, 10), (5, 20);
set @tmp_optimizer_switch=@@optimizer_switch;
set optimizer_switch='derived_merge=off,derived_with_keys=off';
EXPLAIN SELECT * FROM (SELECT * FROM t1 WHERE a=7) t;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2
2 DERIVED t1 ref a a 5 const 1
set optimizer_switch=@tmp_optimizer_switch;
EXPLAIN SELECT * FROM t1 WHERE EXISTS (SELECT * FROM t1 WHERE a=7);
id select_type table type possible_keys key key_len ref rows Extra
@ -5964,7 +6012,7 @@ WHERE f1_key != table2.f1_key AND f1_key >= table1.f1 );
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY table1 ALL NULL NULL NULL NULL 2
1 PRIMARY table2 index NULL f1_key 4 NULL 10 Using where; Using index; Using join buffer (flat, BNL join)
2 DEPENDENT SUBQUERY t2 range f1_key f1_key 4 NULL 6 Range checked for each record (index map: 0x1); Using temporary
2 DEPENDENT SUBQUERY t2 index f1_key f1_key 4 NULL 10 Using where; Using index
DROP TABLE t1,t2;
#
# lp:826279: assertion failure with GROUP BY a result of subquery
@ -6026,6 +6074,212 @@ set @@optimizer_switch='in_to_exists=on,semijoin=off,materialization=off,subquer
select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1)))))))))))))))))))))))))))));
a
1
set @@optimizer_switch=@subselect_tmp;
drop table t1;
#
# LP BUG#894397 Wrong result with in_to_exists, constant table , semijoin=OFF,materialization=OFF
#
CREATE TABLE t1 (a varchar(3));
INSERT INTO t1 VALUES ('AAA'),('BBB');
CREATE TABLE t2 (a varchar(3));
INSERT INTO t2 VALUES ('CCC');
set @@optimizer_switch='semijoin=off,materialization=off,in_to_exists=on,subquery_cache=off';
SELECT * FROM t1 WHERE t1.a IN (SELECT t2.a FROM t2 WHERE t2.a < 'ZZZ');
a
set @@optimizer_switch=@subselect_tmp;
drop table t1, t2;
#
# LP bug #859375: Assertion `0' failed in st_select_lex_unit::optimize
# with view , UNION and prepared statement (rewriting fake_select
# condition).
#
CREATE TABLE t1 ( f1 int NOT NULL, f4 varchar(1) NOT NULL) ;
INSERT INTO t1 VALUES (6,'d'),(7,'y');
CREATE TABLE t2 ( f1 int NOT NULL, f2 int NOT NULL) ;
INSERT INTO t2 VALUES (10,7);
CREATE VIEW v2 AS SELECT * FROM t2;
PREPARE st1 FROM "
SELECT *
FROM t1
LEFT JOIN v2 ON ( v2.f2 = t1.f1 )
WHERE v2.f1 NOT IN (
SELECT 1 UNION
SELECT 247
)
";
EXECUTE st1;
f1 f4 f1 f2
7 y 10 7
deallocate prepare st1;
DROP VIEW v2;
DROP TABLE t1,t2;
#
# LP bug #887458 Crash in subselect_union_engine::no_rows with
# double UNION and join_cache_level=3,8
# (IN/ALL/ANY optimizations should not be applied to fake_select)
CREATE TABLE t2 ( a int, b varchar(1)) ;
INSERT IGNORE INTO t2 VALUES (8,'y'),(8,'y');
CREATE TABLE t1 ( b varchar(1)) ;
INSERT IGNORE INTO t1 VALUES (NULL),(NULL);
set @save_join_cache_level=@@join_cache_level;
SET SESSION join_cache_level=3;
SELECT *
FROM t1, t2
WHERE t2.b IN (
SELECT 'm' UNION
SELECT 'm'
) OR t1.b <> SOME (
SELECT 'v' UNION
SELECT 't'
);
b a b
set @@join_cache_level= @save_join_cache_level;
drop table t1,t2;
#
# LP bug #885162 Got error 124 from storage engine with UNION inside
# subquery and join_cache_level=3..8
# (IN/ALL/ANY optimizations should not be applied to fake_select)
#
CREATE TABLE t1 (
f1 varchar(1) DEFAULT NULL
);
INSERT INTO t1 VALUES ('c');
set @save_join_cache_level=@@join_cache_level;
SET SESSION join_cache_level=8;
SELECT * FROM t1 WHERE t1.f1 IN ( SELECT 'k' UNION SELECT 'e' );
f1
set @@join_cache_level= @save_join_cache_level;
drop table t1;
#
# LP BUG#747278 incorrect values of the NULL (no rows) single
# row subquery requested via element_index() interface
#
CREATE TABLE t1 (f1a int, f1b int) ;
INSERT IGNORE INTO t1 VALUES (1,1),(2,2);
CREATE TABLE t2 ( f2 int);
INSERT IGNORE INTO t2 VALUES (3),(4);
CREATE TABLE t3 (f3a int default 1, f3b int default 2);
INSERT INTO t3 VALUES (1,1),(2,2);
set @old_optimizer_switch = @@session.optimizer_switch;
set @@optimizer_switch='materialization=on,partial_match_rowid_merge=on,partial_match_table_scan=off,subquery_cache=off,semijoin=off';
SELECT (SELECT f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a FROM t1) FROM t2;
(SELECT f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a FROM t1)
NULL
NULL
SELECT (SELECT f3a,f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a,f1a FROM t1) FROM t2;
(SELECT f3a,f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a,f1a FROM t1)
NULL
NULL
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1) FROM t2;
(SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1)
NULL
NULL
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1);
(SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1)
NULL
SELECT (SELECT f3a FROM t3 where f3a > 3) IN (SELECT f1a FROM t1) FROM t2;
(SELECT f3a FROM t3 where f3a > 3) IN (SELECT f1a FROM t1)
NULL
NULL
SELECT (SELECT f3a,f3a FROM t3 where f3a > 3) IN (SELECT f1a,f1a FROM t1) FROM t2;
(SELECT f3a,f3a FROM t3 where f3a > 3) IN (SELECT f1a,f1a FROM t1)
NULL
NULL
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1) FROM t2;
(SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1)
NULL
NULL
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1);
(SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1)
NULL
set @@session.optimizer_switch=@old_optimizer_switch;
SELECT (SELECT f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a FROM t1) FROM t2;
(SELECT f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a FROM t1)
NULL
NULL
SELECT (SELECT f3a,f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a,f1a FROM t1) FROM t2;
(SELECT f3a,f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a,f1a FROM t1)
NULL
NULL
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1) FROM t2;
(SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1)
NULL
NULL
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1);
(SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1)
NULL
SELECT (SELECT f3a FROM t3 where f3a > 3) IN (SELECT f1a FROM t1) FROM t2;
(SELECT f3a FROM t3 where f3a > 3) IN (SELECT f1a FROM t1)
NULL
NULL
SELECT (SELECT f3a,f3a FROM t3 where f3a > 3) IN (SELECT f1a,f1a FROM t1) FROM t2;
(SELECT f3a,f3a FROM t3 where f3a > 3) IN (SELECT f1a,f1a FROM t1)
NULL
NULL
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1) FROM t2;
(SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1)
NULL
NULL
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1);
(SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1)
NULL
select (null, null) = (null, null);
(null, null) = (null, null)
NULL
SELECT (SELECT f3a, f3a FROM t3 where f3a > 3) = (0, 0);
(SELECT f3a, f3a FROM t3 where f3a > 3) = (0, 0)
NULL
drop tables t1,t2,t3;
#
# LP BUG#825051 Wrong result with date/datetime and subquery with GROUP BY and in_to_exists
#
CREATE TABLE t1 (a date, KEY (a)) ;
INSERT INTO t1 VALUES ('2009-01-01'),('2009-02-02');
set @old_optimizer_switch = @@optimizer_switch;
SET @@optimizer_switch='semijoin=off,materialization=off,in_to_exists=on,subquery_cache=off';
EXPLAIN SELECT * FROM t1 WHERE a IN (SELECT a AS field1 FROM t1 GROUP BY field1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 index NULL a 4 NULL 2 Using where; Using index
2 DEPENDENT SUBQUERY t1 index_subquery a a 4 func 2 Using index
SELECT * FROM t1 WHERE a IN (SELECT a AS field1 FROM t1 GROUP BY field1);
a
2009-01-01
2009-02-02
SET @@optimizer_switch='semijoin=off,materialization=on,in_to_exists=off,subquery_cache=off';
EXPLAIN SELECT * FROM t1 WHERE a IN (SELECT a AS field1 FROM t1 GROUP BY field1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 index NULL a 4 NULL 2 Using where; Using index
2 MATERIALIZED t1 index NULL a 4 NULL 2 Using index
SELECT * FROM t1 WHERE a IN (SELECT a AS field1 FROM t1 GROUP BY field1);
a
2009-01-01
2009-02-02
set @@optimizer_switch=@old_optimizer_switch;
drop table t1;
#
# LP BUG#908269 incorrect condition in case of subqueries depending
# on constant tables
#
CREATE TABLE t1 ( a INT );
INSERT INTO t1 VALUES (1),(5);
CREATE TABLE t2 ( b INT ) ENGINE=MyISAM;
INSERT INTO t2 VALUES (1);
CREATE TABLE t3 ( c INT );
INSERT INTO t3 VALUES (4),(5);
SET optimizer_switch='subquery_cache=off';
SELECT ( SELECT b FROM t2 WHERE b = a OR EXISTS ( SELECT c FROM t3 WHERE c = b ) ) FROM t1;
( SELECT b FROM t2 WHERE b = a OR EXISTS ( SELECT c FROM t3 WHERE c = b ) )
1
NULL
SELECT ( SELECT b FROM t2 WHERE b = a OR b * 0) FROM t1;
( SELECT b FROM t2 WHERE b = a OR b * 0)
1
NULL
SELECT ( SELECT b FROM t2 WHERE b = a OR rand() * 0) FROM t1;
( SELECT b FROM t2 WHERE b = a OR rand() * 0)
1
NULL
drop table t1,t2,t3;
# return optimizer switch changed in the beginning of this test
set optimizer_switch=@subselect_tmp;
set @optimizer_switch_for_subselect_test=null;

313
mysql-test/r/subselect_no_scache.result
View File

@ -2,11 +2,14 @@ select @@optimizer_switch like '%subquery_cache=on%';
@@optimizer_switch like '%subquery_cache=on%'
1
set optimizer_switch='subquery_cache=off';
set join_cache_level=1;
set @join_cache_level_for_subselect_test=@@join_cache_level;
drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t11,t12;
drop view if exists v2;
set @subselect_tmp=@@optimizer_switch;
set @@optimizer_switch=ifnull(@optimizer_switch_for_subselect_test,
"semijoin=on,firstmatch=on,loosescan=on,semijoin_with_cache=on,partial_match_rowid_merge=off,partial_match_table_scan=off");
set join_cache_level=@join_cache_level_for_subselect_test;
set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
select (select 2);
(select 2)
@ -205,6 +208,8 @@ select (select t3.a from t3 where a<8 order by 1 desc limit 1), a from
(select * from t2 where a>1) as tt;
(select t3.a from t3 where a<8 order by 1 desc limit 1) a
7 2
set @tmp_optimizer_switch=@@optimizer_switch;
set optimizer_switch='derived_merge=off,derived_with_keys=off';
explain extended select (select t3.a from t3 where a<8 order by 1 desc limit 1), a from
(select * from t2 where a>1) as tt;
id select_type table type possible_keys key key_len ref rows filtered Extra
@ -213,6 +218,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
2 SUBQUERY t3 ALL NULL NULL NULL NULL 3 100.00 Using where; Using filesort
Warnings:
Note 1003 select (select `test`.`t3`.`a` from `test`.`t3` where (`test`.`t3`.`a` < 8) order by 1 desc limit 1) AS `(select t3.a from t3 where a<8 order by 1 desc limit 1)`,`tt`.`a` AS `a` from (select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` where (`test`.`t2`.`a` > 1)) `tt`
set optimizer_switch=@tmp_optimizer_switch;
select * from t1 where t1.a=(select t2.a from t2 where t2.b=(select max(a) from t3) order by 1 desc limit 1);
a
2
@ -1374,7 +1380,7 @@ create table t1 (id int not null auto_increment primary key, salary int, key(sal
insert into t1 (salary) values (100),(1000),(10000),(10),(500),(5000),(50000);
explain extended SELECT id FROM t1 where salary = (SELECT MAX(salary) FROM t1);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ref salary salary 5 const 0 0.00 Using index condition
1 PRIMARY t1 ref salary salary 5 const 0 0.00 Using where
2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away
Warnings:
Note 1003 select `test`.`t1`.`id` AS `id` from `test`.`t1` where (`test`.`t1`.`salary` = (select max(`test`.`t1`.`salary`) from `test`.`t1`))
@ -1399,7 +1405,7 @@ insert into t1 values (1,0), (2,0), (3,0);
insert into t2 values (1,1), (2,1), (3,1), (2,2);
update ignore t1 set b=(select b from t2 where t1.a=t2.a);
Warnings:
Error 1242 Subquery returns more than 1 row
Warning 1242 Subquery returns more than 1 row
select * from t1;
a b
1 1
@ -1662,7 +1668,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>(<in_optimizer>(`test`.`t3`.`a`,(<max>(select NULL from `test`.`t2` group by 1) > <cache>(`test`.`t3`.`a`))))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>(<in_optimizer>(`test`.`t3`.`a`,((select max(NULL) from `test`.`t2`) > <cache>(`test`.`t3`.`a`))))
select * from t3 where a >= some (select b from t2 group by 1);
a
explain extended select * from t3 where a >= some (select b from t2 group by 1);
@ -1670,7 +1676,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(`test`.`t3`.`a`,(<min>(select NULL from `test`.`t2` group by 1) <= <cache>(`test`.`t3`.`a`))))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(`test`.`t3`.`a`,((select min(NULL) from `test`.`t2`) <= <cache>(`test`.`t3`.`a`))))
select * from t3 where NULL >= any (select b from t2);
a
explain extended select * from t3 where NULL >= any (select b from t2);
@ -1686,7 +1692,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,(<min>(select NULL from `test`.`t2` group by 1) <= NULL)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,((select min(NULL) from `test`.`t2`) <= NULL)))
select * from t3 where NULL >= some (select b from t2);
a
explain extended select * from t3 where NULL >= some (select b from t2);
@ -1702,7 +1708,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,(<min>(select NULL from `test`.`t2` group by 1) <= NULL)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,((select min(NULL) from `test`.`t2`) <= NULL)))
insert into t2 values (2,2), (2,1), (3,3), (3,1);
select * from t3 where a > all (select max(b) from t2 group by a);
a
@ -2974,15 +2980,15 @@ explain extended SELECT one,two from t1 where ROW(one,two) IN (SELECT one,two FR
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 10 func,func 1 100.00
2 SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 9 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`flag` = 'N'))
explain extended SELECT one,two,ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = '0' group by one,two) as 'test' from t1;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00
2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where; Using temporary
2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where (`test`.`t2`.`flag` = '0') group by `test`.`t2`.`one`,`test`.`t2`.`two` having (trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`))) and trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`))))) AS `test` from `test`.`t1`
Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where ((`test`.`t2`.`flag` = '0') and trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`)))) having (trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`))))) AS `test` from `test`.`t1`
DROP TABLE t1,t2;
set optimizer_switch=@tmp11867_optimizer_switch;
CREATE TABLE t1 (a char(5), b char(5));
@ -3564,7 +3570,7 @@ SELECT * FROM t1 WHERE (a,b) = ANY (SELECT a, max(b) FROM t1 GROUP BY a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 9 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 23 test.t1.a,test.t1.b 1
2 SUBQUERY t1 ALL NULL NULL NULL NULL 9 Using temporary
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 9 Using temporary
ALTER TABLE t1 ADD INDEX(a);
SELECT * FROM t1 WHERE (a,b) = ANY (SELECT a, max(b) FROM t1 GROUP BY a);
a b
@ -3576,7 +3582,7 @@ SELECT * FROM t1 WHERE (a,b) = ANY (SELECT a, max(b) FROM t1 GROUP BY a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL a NULL NULL NULL 9 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 23 test.t1.a,test.t1.b 1
2 SUBQUERY t1 ALL NULL NULL NULL NULL 9 Using temporary
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 9 Using temporary
DROP TABLE t1;
create table t1( f1 int,f2 int);
insert into t1 values (1,1),(2,2);
@ -4360,6 +4366,9 @@ LEFT(t1.a1,1)
SELECT a2 FROM t2 WHERE t2.a2 IN (SELECT t1.a1 FROM t1,t3 WHERE t1.b1=t3.a3);
a2
DROP TABLE t1, t2, t3;
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='semijoin_with_cache=off';
SET optimizer_switch='materialization=off';
CREATE TABLE t1 (a CHAR(1), b VARCHAR(10));
INSERT INTO t1 VALUES ('a', 'aa');
INSERT INTO t1 VALUES ('a', 'aaa');
@ -4391,6 +4400,7 @@ id select_type table type possible_keys key key_len ref rows Extra
SELECT a,b FROM t1 WHERE b IN (SELECT a FROM t1 WHERE LENGTH(a)<500);
a b
DROP TABLE t1,t2;
SET optimizer_switch= @save_optimizer_switch;
CREATE TABLE t1(a INT, b INT);
INSERT INTO t1 VALUES (1,1), (1,2), (2,3), (2,4);
EXPLAIN
@ -4516,20 +4526,23 @@ a
drop table t1, t2;
CREATE TABLE t1 (a INT);
INSERT INTO t1 VALUES (1),(2);
EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT 1 FROM t1 GROUP BY a);
SET @save_join_cache_level=@@join_cache_level;
SET join_cache_level=0;
EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT min(a) FROM t1 GROUP BY a);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY <subquery2> const distinct_key distinct_key 5 const 1 100.00
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00
1 PRIMARY <subquery2> const distinct_key distinct_key 4 const 1 100.00
2 SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using temporary
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 2 100.00 Using temporary
Warnings:
Note 1003 select 1 AS `1` from <materialize> (select 1 from `test`.`t1` group by `test`.`t1`.`a`) join `test`.`t1` where (`<subquery2>`.`1` = 1)
EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT 1 FROM t1 WHERE a > 3 GROUP BY a);
Note 1003 select 1 AS `1` from <materialize> (select min(`test`.`t1`.`a`) from `test`.`t1` group by `test`.`t1`.`a`) join `test`.`t1` where (`<subquery2>`.`min(a)` = 1)
EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT min(a) FROM t1 WHERE a > 3 GROUP BY a);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY <subquery2> const distinct_key distinct_key 5 const 1 100.00
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00
1 PRIMARY <subquery2> const distinct_key distinct_key 4 const 1 100.00
2 SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using where; Using temporary
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 2 100.00 Using where; Using temporary
Warnings:
Note 1003 select 1 AS `1` from <materialize> (select 1 from `test`.`t1` where (`test`.`t1`.`a` > 3) group by `test`.`t1`.`a`) join `test`.`t1` where (`<subquery2>`.`1` = 1)
Note 1003 select 1 AS `1` from <materialize> (select min(`test`.`t1`.`a`) from `test`.`t1` where (`test`.`t1`.`a` > 3) group by `test`.`t1`.`a`) join `test`.`t1` where (`<subquery2>`.`min(a)` = 1)
SET join_cache_level=@save_join_cache_level;
DROP TABLE t1;
#
# Bug#45061: Incorrectly market field caused wrong result.
@ -4605,6 +4618,32 @@ pk int_key
3 3
7 3
DROP TABLE t1,t2;
#
# Bug#12329653
# EXPLAIN, UNION, PREPARED STATEMENT, CRASH, SQL_FULL_GROUP_BY
#
CREATE TABLE t1(a1 int);
INSERT INTO t1 VALUES (1),(2);
SELECT @@session.sql_mode INTO @old_sql_mode;
SET SESSION sql_mode='ONLY_FULL_GROUP_BY';
SELECT 1 FROM t1 WHERE 1 < SOME (SELECT a1 FROM t1);
1
1
1
PREPARE stmt FROM
'SELECT 1 UNION ALL
SELECT 1 FROM t1
ORDER BY
(SELECT 1 FROM t1 AS t1_0
WHERE 1 < SOME (SELECT a1 FROM t1)
)' ;
EXECUTE stmt ;
ERROR 21000: Subquery returns more than 1 row
EXECUTE stmt ;
ERROR 21000: Subquery returns more than 1 row
SET SESSION sql_mode=@old_sql_mode;
DEALLOCATE PREPARE stmt;
DROP TABLE t1;
End of 5.0 tests.
create table t_out (subcase char(3),
a1 char(2), b1 char(2), c1 char(2));
@ -4847,8 +4886,6 @@ SELECT * FROM t1
WHERE EXISTS (SELECT DISTINCT a FROM t2 WHERE t1.a < t2.a ORDER BY b);
pk a
1 10
3 30
2 20
DROP TABLE t1,t2;
CREATE TABLE t1 (a INT, b INT, PRIMARY KEY (a), KEY b (b));
INSERT INTO t1 VALUES (1,NULL), (9,NULL);
@ -5560,8 +5597,8 @@ id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY ot1 ALL NULL NULL NULL NULL 2
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 24 Using where
1 PRIMARY ot4 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
2 SUBQUERY it2 ALL NULL NULL NULL NULL 4
2 SUBQUERY it3 ALL NULL NULL NULL NULL 6 Using join buffer (flat, BNL join)
2 MATERIALIZED it2 ALL NULL NULL NULL NULL 4
2 MATERIALIZED it3 ALL NULL NULL NULL NULL 6 Using join buffer (flat, BNL join)
DROP TABLE IF EXISTS ot1, ot4, it2, it3;
#
# Bug#729039: NULL keys used to evaluate subquery
@ -5602,16 +5639,19 @@ CREATE TABLE t2 (pk INTEGER PRIMARY KEY, i INTEGER NOT NULL);
INSERT INTO t2 VALUES (11,1);
INSERT INTO t2 VALUES (12,2);
INSERT INTO t2 VALUES (15,4);
SET @save_join_cache_level=@@join_cache_level;
SET join_cache_level=0;
EXPLAIN SELECT * FROM t1 WHERE pk IN (SELECT it.pk FROM t2 JOIN t2 AS it ON 1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL PRIMARY NULL NULL NULL 3 Start temporary
1 PRIMARY t2 index NULL PRIMARY 4 NULL 3 Using index; Using join buffer (flat, BNL join)
1 PRIMARY it eq_ref PRIMARY PRIMARY 4 test.t1.pk 1 Using index; End temporary
1 PRIMARY t1 ALL PRIMARY NULL NULL NULL 3
1 PRIMARY it eq_ref PRIMARY PRIMARY 4 test.t1.pk 1 Using index
1 PRIMARY t2 index NULL PRIMARY 4 NULL 3 Using index; FirstMatch(it)
SELECT * FROM t1 WHERE pk IN (SELECT it.pk FROM t2 JOIN t2 AS it ON 1);
pk i
11 0
12 5
15 0
SET join_cache_level=@save_join_cache_level;
DROP table t1,t2;
#
# Bug#751350: crash with pushed condition for outer references when
@ -5619,18 +5659,21 @@ DROP table t1,t2;
#
CREATE TABLE t1 (a int, b int) ;
INSERT INTO t1 VALUES (0,0),(0,0);
set @optimizer_switch_save=@@optimizer_switch;
set @@optimizer_switch='semijoin=off,materialization=on,in_to_exists=on';
EXPLAIN
SELECT b FROM t1
WHERE ('0') IN ( SELECT a FROM t1 GROUP BY a )
GROUP BY b;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using temporary; Using filesort
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using temporary
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using where
SELECT b FROM t1
WHERE ('0') IN ( SELECT a FROM t1 GROUP BY a )
GROUP BY b;
b
0
set @@optimizer_switch=@optimizer_switch_save;
DROP TABLE t1;
#
# Bug #11765713 58705:
@ -5842,6 +5885,8 @@ CREATE TABLE t2 (a int, b int) ;
INSERT INTO t2 VALUES (20,9),(20,9);
create table t3 (d int, e int);
insert into t3 values (2, 9), (3,10);
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='outer_join_with_cache=off';
EXPLAIN
SELECT t2.b , t1.c
FROM t2 LEFT JOIN t1 ON t1.c < 3
@ -5856,9 +5901,9 @@ WHERE (t2.b, t1.c) NOT IN (SELECT * from t3);
b c
9 NULL
9 NULL
SET optimizer_switch=@save_optimizer_switch;
drop table t1, t2, t3;
End of 5.3 tests
End of 5.5 tests.
#
# Bug#12763207 - ASSERT IN SUBSELECT::SINGLE_VALUE_TRANSFORMER
#
@ -5891,10 +5936,13 @@ DROP TABLE t1, t2;
CREATE TABLE t1 (a INT, b INT, INDEX (a));
INSERT INTO t1 VALUES (3, 10), (2, 20), (7, 10), (5, 20);
set @tmp_optimizer_switch=@@optimizer_switch;
set optimizer_switch='derived_merge=off,derived_with_keys=off';
EXPLAIN SELECT * FROM (SELECT * FROM t1 WHERE a=7) t;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2
2 DERIVED t1 ref a a 5 const 1
set optimizer_switch=@tmp_optimizer_switch;
EXPLAIN SELECT * FROM t1 WHERE EXISTS (SELECT * FROM t1 WHERE a=7);
id select_type table type possible_keys key key_len ref rows Extra
@ -5973,7 +6021,7 @@ WHERE f1_key != table2.f1_key AND f1_key >= table1.f1 );
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY table1 ALL NULL NULL NULL NULL 2
1 PRIMARY table2 index NULL f1_key 4 NULL 10 Using where; Using index; Using join buffer (flat, BNL join)
2 DEPENDENT SUBQUERY t2 range f1_key f1_key 4 NULL 6 Range checked for each record (index map: 0x1); Using temporary
2 DEPENDENT SUBQUERY t2 index f1_key f1_key 4 NULL 10 Using where; Using index
DROP TABLE t1,t2;
#
# lp:826279: assertion failure with GROUP BY a result of subquery
@ -6035,9 +6083,216 @@ set @@optimizer_switch='in_to_exists=on,semijoin=off,materialization=off,subquer
select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1)))))))))))))))))))))))))))));
a
1
set @@optimizer_switch=@subselect_tmp;
drop table t1;
#
# LP BUG#894397 Wrong result with in_to_exists, constant table , semijoin=OFF,materialization=OFF
#
CREATE TABLE t1 (a varchar(3));
INSERT INTO t1 VALUES ('AAA'),('BBB');
CREATE TABLE t2 (a varchar(3));
INSERT INTO t2 VALUES ('CCC');
set @@optimizer_switch='semijoin=off,materialization=off,in_to_exists=on,subquery_cache=off';
SELECT * FROM t1 WHERE t1.a IN (SELECT t2.a FROM t2 WHERE t2.a < 'ZZZ');
a
set @@optimizer_switch=@subselect_tmp;
drop table t1, t2;
#
# LP bug #859375: Assertion `0' failed in st_select_lex_unit::optimize
# with view , UNION and prepared statement (rewriting fake_select
# condition).
#
CREATE TABLE t1 ( f1 int NOT NULL, f4 varchar(1) NOT NULL) ;
INSERT INTO t1 VALUES (6,'d'),(7,'y');
CREATE TABLE t2 ( f1 int NOT NULL, f2 int NOT NULL) ;
INSERT INTO t2 VALUES (10,7);
CREATE VIEW v2 AS SELECT * FROM t2;
PREPARE st1 FROM "
SELECT *
FROM t1
LEFT JOIN v2 ON ( v2.f2 = t1.f1 )
WHERE v2.f1 NOT IN (
SELECT 1 UNION
SELECT 247
)
";
EXECUTE st1;
f1 f4 f1 f2
7 y 10 7
deallocate prepare st1;
DROP VIEW v2;
DROP TABLE t1,t2;
#
# LP bug #887458 Crash in subselect_union_engine::no_rows with
# double UNION and join_cache_level=3,8
# (IN/ALL/ANY optimizations should not be applied to fake_select)
CREATE TABLE t2 ( a int, b varchar(1)) ;
INSERT IGNORE INTO t2 VALUES (8,'y'),(8,'y');
CREATE TABLE t1 ( b varchar(1)) ;
INSERT IGNORE INTO t1 VALUES (NULL),(NULL);
set @save_join_cache_level=@@join_cache_level;
SET SESSION join_cache_level=3;
SELECT *
FROM t1, t2
WHERE t2.b IN (
SELECT 'm' UNION
SELECT 'm'
) OR t1.b <> SOME (
SELECT 'v' UNION
SELECT 't'
);
b a b
set @@join_cache_level= @save_join_cache_level;
drop table t1,t2;
#
# LP bug #885162 Got error 124 from storage engine with UNION inside
# subquery and join_cache_level=3..8
# (IN/ALL/ANY optimizations should not be applied to fake_select)
#
CREATE TABLE t1 (
f1 varchar(1) DEFAULT NULL
);
INSERT INTO t1 VALUES ('c');
set @save_join_cache_level=@@join_cache_level;
SET SESSION join_cache_level=8;
SELECT * FROM t1 WHERE t1.f1 IN ( SELECT 'k' UNION SELECT 'e' );
f1
set @@join_cache_level= @save_join_cache_level;
drop table t1;
#
# LP BUG#747278 incorrect values of the NULL (no rows) single
# row subquery requested via element_index() interface
#
CREATE TABLE t1 (f1a int, f1b int) ;
INSERT IGNORE INTO t1 VALUES (1,1),(2,2);
CREATE TABLE t2 ( f2 int);
INSERT IGNORE INTO t2 VALUES (3),(4);
CREATE TABLE t3 (f3a int default 1, f3b int default 2);
INSERT INTO t3 VALUES (1,1),(2,2);
set @old_optimizer_switch = @@session.optimizer_switch;
set @@optimizer_switch='materialization=on,partial_match_rowid_merge=on,partial_match_table_scan=off,subquery_cache=off,semijoin=off';
SELECT (SELECT f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a FROM t1) FROM t2;
(SELECT f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a FROM t1)
NULL
NULL
SELECT (SELECT f3a,f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a,f1a FROM t1) FROM t2;
(SELECT f3a,f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a,f1a FROM t1)
NULL
NULL
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1) FROM t2;
(SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1)
NULL
NULL
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1);
(SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1)
NULL
SELECT (SELECT f3a FROM t3 where f3a > 3) IN (SELECT f1a FROM t1) FROM t2;
(SELECT f3a FROM t3 where f3a > 3) IN (SELECT f1a FROM t1)
NULL
NULL
SELECT (SELECT f3a,f3a FROM t3 where f3a > 3) IN (SELECT f1a,f1a FROM t1) FROM t2;
(SELECT f3a,f3a FROM t3 where f3a > 3) IN (SELECT f1a,f1a FROM t1)
NULL
NULL
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1) FROM t2;
(SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1)
NULL
NULL
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1);
(SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1)
NULL
set @@session.optimizer_switch=@old_optimizer_switch;
SELECT (SELECT f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a FROM t1) FROM t2;
(SELECT f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a FROM t1)
NULL
NULL
SELECT (SELECT f3a,f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a,f1a FROM t1) FROM t2;
(SELECT f3a,f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a,f1a FROM t1)
NULL
NULL
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1) FROM t2;
(SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1)
NULL
NULL
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1);
(SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1)
NULL
SELECT (SELECT f3a FROM t3 where f3a > 3) IN (SELECT f1a FROM t1) FROM t2;
(SELECT f3a FROM t3 where f3a > 3) IN (SELECT f1a FROM t1)
NULL
NULL
SELECT (SELECT f3a,f3a FROM t3 where f3a > 3) IN (SELECT f1a,f1a FROM t1) FROM t2;
(SELECT f3a,f3a FROM t3 where f3a > 3) IN (SELECT f1a,f1a FROM t1)
NULL
NULL
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1) FROM t2;
(SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1)
NULL
NULL
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1);
(SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1)
NULL
select (null, null) = (null, null);
(null, null) = (null, null)
NULL
SELECT (SELECT f3a, f3a FROM t3 where f3a > 3) = (0, 0);
(SELECT f3a, f3a FROM t3 where f3a > 3) = (0, 0)
NULL
drop tables t1,t2,t3;
#
# LP BUG#825051 Wrong result with date/datetime and subquery with GROUP BY and in_to_exists
#
CREATE TABLE t1 (a date, KEY (a)) ;
INSERT INTO t1 VALUES ('2009-01-01'),('2009-02-02');
set @old_optimizer_switch = @@optimizer_switch;
SET @@optimizer_switch='semijoin=off,materialization=off,in_to_exists=on,subquery_cache=off';
EXPLAIN SELECT * FROM t1 WHERE a IN (SELECT a AS field1 FROM t1 GROUP BY field1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 index NULL a 4 NULL 2 Using where; Using index
2 DEPENDENT SUBQUERY t1 index_subquery a a 4 func 2 Using index
SELECT * FROM t1 WHERE a IN (SELECT a AS field1 FROM t1 GROUP BY field1);
a
2009-01-01
2009-02-02
SET @@optimizer_switch='semijoin=off,materialization=on,in_to_exists=off,subquery_cache=off';
EXPLAIN SELECT * FROM t1 WHERE a IN (SELECT a AS field1 FROM t1 GROUP BY field1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 index NULL a 4 NULL 2 Using where; Using index
2 MATERIALIZED t1 index NULL a 4 NULL 2 Using index
SELECT * FROM t1 WHERE a IN (SELECT a AS field1 FROM t1 GROUP BY field1);
a
2009-01-01
2009-02-02
set @@optimizer_switch=@old_optimizer_switch;
drop table t1;
#
# LP BUG#908269 incorrect condition in case of subqueries depending
# on constant tables
#
CREATE TABLE t1 ( a INT );
INSERT INTO t1 VALUES (1),(5);
CREATE TABLE t2 ( b INT ) ENGINE=MyISAM;
INSERT INTO t2 VALUES (1);
CREATE TABLE t3 ( c INT );
INSERT INTO t3 VALUES (4),(5);
SET optimizer_switch='subquery_cache=off';
SELECT ( SELECT b FROM t2 WHERE b = a OR EXISTS ( SELECT c FROM t3 WHERE c = b ) ) FROM t1;
( SELECT b FROM t2 WHERE b = a OR EXISTS ( SELECT c FROM t3 WHERE c = b ) )
1
NULL
SELECT ( SELECT b FROM t2 WHERE b = a OR b * 0) FROM t1;
( SELECT b FROM t2 WHERE b = a OR b * 0)
1
NULL
SELECT ( SELECT b FROM t2 WHERE b = a OR rand() * 0) FROM t1;
( SELECT b FROM t2 WHERE b = a OR rand() * 0)
1
NULL
drop table t1,t2,t3;
# return optimizer switch changed in the beginning of this test
set optimizer_switch=@subselect_tmp;
set optimizer_switch=default;
select @@optimizer_switch like '%subquery_cache=on%';
@@optimizer_switch like '%subquery_cache=on%'
1
set @join_cache_level_for_subselect_test=NULL;

349
mysql-test/r/subselect_no_semijoin.result
View File

@ -1,9 +1,12 @@
set @optimizer_switch_for_subselect_test='semijoin=off,mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
set join_cache_level=1;
set @join_cache_level_for_subselect_test=@@join_cache_level;
drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t11,t12;
drop view if exists v2;
set @subselect_tmp=@@optimizer_switch;
set @@optimizer_switch=ifnull(@optimizer_switch_for_subselect_test,
"semijoin=on,firstmatch=on,loosescan=on,semijoin_with_cache=on,partial_match_rowid_merge=off,partial_match_table_scan=off");
set join_cache_level=@join_cache_level_for_subselect_test;
set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
select (select 2);
(select 2)
@ -202,6 +205,8 @@ select (select t3.a from t3 where a<8 order by 1 desc limit 1), a from
(select * from t2 where a>1) as tt;
(select t3.a from t3 where a<8 order by 1 desc limit 1) a
7 2
set @tmp_optimizer_switch=@@optimizer_switch;
set optimizer_switch='derived_merge=off,derived_with_keys=off';
explain extended select (select t3.a from t3 where a<8 order by 1 desc limit 1), a from
(select * from t2 where a>1) as tt;
id select_type table type possible_keys key key_len ref rows filtered Extra
@ -210,6 +215,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
2 SUBQUERY t3 ALL NULL NULL NULL NULL 3 100.00 Using where; Using filesort
Warnings:
Note 1003 select (select `test`.`t3`.`a` from `test`.`t3` where (`test`.`t3`.`a` < 8) order by 1 desc limit 1) AS `(select t3.a from t3 where a<8 order by 1 desc limit 1)`,`tt`.`a` AS `a` from (select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` where (`test`.`t2`.`a` > 1)) `tt`
set optimizer_switch=@tmp_optimizer_switch;
select * from t1 where t1.a=(select t2.a from t2 where t2.b=(select max(a) from t3) order by 1 desc limit 1);
a
2
@ -904,7 +910,7 @@ a t1.a in (select t2.a from t2)
explain extended SELECT t1.a, t1.a in (select t2.a from t2) FROM t1;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 index NULL PRIMARY 4 NULL 4 100.00 Using index
2 SUBQUERY t2 index a a 5 NULL 3 100.00 Using index
2 MATERIALIZED t2 index a a 5 NULL 3 100.00 Using index
Warnings:
Note 1003 select `test`.`t1`.`a` AS `a`,<expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,`test`.`t1`.`a` in ( <materialize> (select `test`.`t2`.`a` from `test`.`t2` ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where ((`test`.`t1`.`a` = `<subquery2>`.`a`)))))) AS `t1.a in (select t2.a from t2)` from `test`.`t1`
CREATE TABLE t3 (a int(11) default '0');
@ -918,8 +924,8 @@ a t1.a in (select t2.a from t2,t3 where t3.a=t2.a)
explain extended SELECT t1.a, t1.a in (select t2.a from t2,t3 where t3.a=t2.a) FROM t1;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 index NULL PRIMARY 4 NULL 4 100.00 Using index
2 SUBQUERY t2 index a a 5 NULL 3 100.00 Using index
2 SUBQUERY t3 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, BNL join)
2 MATERIALIZED t2 index a a 5 NULL 3 100.00 Using index
2 MATERIALIZED t3 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, BNL join)
Warnings:
Note 1003 select `test`.`t1`.`a` AS `a`,<expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,`test`.`t1`.`a` in ( <materialize> (select `test`.`t2`.`a` from `test`.`t2` join `test`.`t3` where (`test`.`t3`.`a` = `test`.`t2`.`a`) ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where ((`test`.`t1`.`a` = `<subquery2>`.`a`)))))) AS `t1.a in (select t2.a from t2,t3 where t3.a=t2.a)` from `test`.`t1`
drop table t1,t2,t3;
@ -1371,7 +1377,7 @@ create table t1 (id int not null auto_increment primary key, salary int, key(sal
insert into t1 (salary) values (100),(1000),(10000),(10),(500),(5000),(50000);
explain extended SELECT id FROM t1 where salary = (SELECT MAX(salary) FROM t1);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ref salary salary 5 const 0 0.00 Using index condition
1 PRIMARY t1 ref salary salary 5 const 0 0.00 Using where
2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away
Warnings:
Note 1003 select `test`.`t1`.`id` AS `id` from `test`.`t1` where (`test`.`t1`.`salary` = (select max(`test`.`t1`.`salary`) from `test`.`t1`))
@ -1396,7 +1402,7 @@ insert into t1 values (1,0), (2,0), (3,0);
insert into t2 values (1,1), (2,1), (3,1), (2,2);
update ignore t1 set b=(select b from t2 where t1.a=t2.a);
Warnings:
Error 1242 Subquery returns more than 1 row
Warning 1242 Subquery returns more than 1 row
select * from t1;
a b
1 1
@ -1434,7 +1440,7 @@ a
explain extended select * from t2 where t2.a in (select a from t1);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t2 index NULL PRIMARY 4 NULL 4 100.00 Using where; Using index
2 SUBQUERY t1 index PRIMARY PRIMARY 4 NULL 4 100.00 Using index
2 MATERIALIZED t1 index PRIMARY PRIMARY 4 NULL 4 100.00 Using index
Warnings:
Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <expr_cache><`test`.`t2`.`a`>(<in_optimizer>(`test`.`t2`.`a`,`test`.`t2`.`a` in ( <materialize> (select `test`.`t1`.`a` from `test`.`t1` ), <primary_index_lookup>(`test`.`t2`.`a` in <temporary table> on distinct_key where ((`test`.`t2`.`a` = `<subquery2>`.`a`))))))
select * from t2 where t2.a in (select a from t1 where t1.b <> 30);
@ -1444,7 +1450,7 @@ a
explain extended select * from t2 where t2.a in (select a from t1 where t1.b <> 30);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t2 index NULL PRIMARY 4 NULL 4 100.00 Using where; Using index
2 SUBQUERY t1 ALL PRIMARY NULL NULL NULL 4 100.00 Using where
2 MATERIALIZED t1 ALL PRIMARY NULL NULL NULL 4 100.00 Using where
Warnings:
Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <expr_cache><`test`.`t2`.`a`>(<in_optimizer>(`test`.`t2`.`a`,`test`.`t2`.`a` in ( <materialize> (select `test`.`t1`.`a` from `test`.`t1` where (`test`.`t1`.`b` <> 30) ), <primary_index_lookup>(`test`.`t2`.`a` in <temporary table> on distinct_key where ((`test`.`t2`.`a` = `<subquery2>`.`a`))))))
select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a);
@ -1454,8 +1460,8 @@ a
explain extended select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t2 index NULL PRIMARY 4 NULL 4 100.00 Using where; Using index
2 SUBQUERY t3 index PRIMARY PRIMARY 4 NULL 3 100.00 Using index
2 SUBQUERY t1 ALL PRIMARY NULL NULL NULL 4 100.00 Using where; Using join buffer (flat, BNL join)
2 MATERIALIZED t3 index PRIMARY PRIMARY 4 NULL 3 100.00 Using index
2 MATERIALIZED t1 ALL PRIMARY NULL NULL NULL 4 100.00 Using where; Using join buffer (flat, BNL join)
Warnings:
Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <expr_cache><`test`.`t2`.`a`>(<in_optimizer>(`test`.`t2`.`a`,`test`.`t2`.`a` in ( <materialize> (select `test`.`t1`.`a` from `test`.`t1` join `test`.`t3` where (`test`.`t1`.`b` = `test`.`t3`.`a`) ), <primary_index_lookup>(`test`.`t2`.`a` in <temporary table> on distinct_key where ((`test`.`t2`.`a` = `<subquery2>`.`a`))))))
drop table t1, t2, t3;
@ -1497,10 +1503,10 @@ a
explain extended select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t2 index NULL a 5 NULL 4 100.00 Using where; Using index
2 DEPENDENT SUBQUERY t1 ref a a 5 func 1001 100.00 Using index
2 DEPENDENT SUBQUERY t3 index a a 5 NULL 3 100.00 Using where; Using index; Using join buffer (flat, BNL join)
2 DEPENDENT SUBQUERY t3 index a a 5 NULL 3 100.00 Using where; Using index
2 DEPENDENT SUBQUERY t1 ref a a 10 func,test.t3.a 1167 100.00 Using index
Warnings:
Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <expr_cache><`test`.`t2`.`a`>(<in_optimizer>(`test`.`t2`.`a`,<exists>(select `test`.`t1`.`a` from `test`.`t1` join `test`.`t3` where ((`test`.`t3`.`a` = `test`.`t1`.`b`) and (<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`)))))
Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <expr_cache><`test`.`t2`.`a`>(<in_optimizer>(`test`.`t2`.`a`,<exists>(select `test`.`t1`.`a` from `test`.`t1` join `test`.`t3` where ((`test`.`t1`.`b` = `test`.`t3`.`a`) and (<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`)))))
insert into t1 values (3,31);
select * from t2 where t2.a in (select a from t1 where t1.b <> 30);
a
@ -1605,25 +1611,25 @@ a3 1
explain extended select s1, s1 NOT IN (SELECT s1 FROM t2) from t1;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 index NULL s1 6 NULL 3 100.00 Using index
2 SUBQUERY t2 index s1 s1 6 NULL 2 100.00 Using index
2 MATERIALIZED t2 index s1 s1 6 NULL 2 100.00 Using index
Warnings:
Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,`test`.`t1`.`s1` in ( <materialize> (select `test`.`t2`.`s1` from `test`.`t2` ), <primary_index_lookup>(`test`.`t1`.`s1` in <temporary table> on distinct_key where ((`test`.`t1`.`s1` = `<subquery2>`.`s1`)))))))) AS `s1 NOT IN (SELECT s1 FROM t2)` from `test`.`t1`
explain extended select s1, s1 = ANY (SELECT s1 FROM t2) from t1;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 index NULL s1 6 NULL 3 100.00 Using index
2 SUBQUERY t2 index s1 s1 6 NULL 2 100.00 Using index
2 MATERIALIZED t2 index s1 s1 6 NULL 2 100.00 Using index
Warnings:
Note 1003 select `test`.`t1`.`s1` AS `s1`,<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,`test`.`t1`.`s1` in ( <materialize> (select `test`.`t2`.`s1` from `test`.`t2` ), <primary_index_lookup>(`test`.`t1`.`s1` in <temporary table> on distinct_key where ((`test`.`t1`.`s1` = `<subquery2>`.`s1`)))))) AS `s1 = ANY (SELECT s1 FROM t2)` from `test`.`t1`
explain extended select s1, s1 <> ALL (SELECT s1 FROM t2) from t1;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 index NULL s1 6 NULL 3 100.00 Using index
2 SUBQUERY t2 index s1 s1 6 NULL 2 100.00 Using index
2 MATERIALIZED t2 index s1 s1 6 NULL 2 100.00 Using index
Warnings:
Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,`test`.`t1`.`s1` in ( <materialize> (select `test`.`t2`.`s1` from `test`.`t2` ), <primary_index_lookup>(`test`.`t1`.`s1` in <temporary table> on distinct_key where ((`test`.`t1`.`s1` = `<subquery2>`.`s1`)))))))) AS `s1 <> ALL (SELECT s1 FROM t2)` from `test`.`t1`
explain extended select s1, s1 NOT IN (SELECT s1 FROM t2 WHERE s1 < 'a2') from t1;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 index NULL s1 6 NULL 3 100.00 Using index
2 SUBQUERY t2 index s1 s1 6 NULL 2 50.00 Using where; Using index
2 MATERIALIZED t2 index s1 s1 6 NULL 2 50.00 Using where; Using index
Warnings:
Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,`test`.`t1`.`s1` in ( <materialize> (select `test`.`t2`.`s1` from `test`.`t2` where (`test`.`t2`.`s1` < 'a2') ), <primary_index_lookup>(`test`.`t1`.`s1` in <temporary table> on distinct_key where ((`test`.`t1`.`s1` = `<subquery2>`.`s1`)))))))) AS `s1 NOT IN (SELECT s1 FROM t2 WHERE s1 < 'a2')` from `test`.`t1`
drop table t1,t2;
@ -1659,7 +1665,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>(<in_optimizer>(`test`.`t3`.`a`,(<max>(select NULL from `test`.`t2` group by 1) > <cache>(`test`.`t3`.`a`))))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>(<in_optimizer>(`test`.`t3`.`a`,((select max(NULL) from `test`.`t2`) > <cache>(`test`.`t3`.`a`))))
select * from t3 where a >= some (select b from t2 group by 1);
a
explain extended select * from t3 where a >= some (select b from t2 group by 1);
@ -1667,7 +1673,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(`test`.`t3`.`a`,(<min>(select NULL from `test`.`t2` group by 1) <= <cache>(`test`.`t3`.`a`))))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(`test`.`t3`.`a`,((select min(NULL) from `test`.`t2`) <= <cache>(`test`.`t3`.`a`))))
select * from t3 where NULL >= any (select b from t2);
a
explain extended select * from t3 where NULL >= any (select b from t2);
@ -1683,7 +1689,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,(<min>(select NULL from `test`.`t2` group by 1) <= NULL)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,((select min(NULL) from `test`.`t2`) <= NULL)))
select * from t3 where NULL >= some (select b from t2);
a
explain extended select * from t3 where NULL >= some (select b from t2);
@ -1699,7 +1705,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,(<min>(select NULL from `test`.`t2` group by 1) <= NULL)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,((select min(NULL) from `test`.`t2`) <= NULL)))
insert into t2 values (2,2), (2,1), (3,3), (3,1);
select * from t3 where a > all (select max(b) from t2 group by a);
a
@ -1878,7 +1884,7 @@ id text
explain extended select * from t1 where id not in (select id from t1 where id < 8);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 12 100.00 Using where
2 SUBQUERY t1 range PRIMARY PRIMARY 4 NULL 7 100.00 Using where; Using index
2 MATERIALIZED t1 range PRIMARY PRIMARY 4 NULL 7 100.00 Using where; Using index
Warnings:
Note 1003 select `test`.`t1`.`id` AS `id`,`test`.`t1`.`text` AS `text` from `test`.`t1` where (not(<expr_cache><`test`.`t1`.`id`>(<in_optimizer>(`test`.`t1`.`id`,`test`.`t1`.`id` in ( <materialize> (select `test`.`t1`.`id` from `test`.`t1` where (`test`.`t1`.`id` < 8) ), <primary_index_lookup>(`test`.`t1`.`id` in <temporary table> on distinct_key where ((`test`.`t1`.`id` = `<subquery2>`.`id`))))))))
explain extended select * from t1 as tt where not exists (select id from t1 where id < 8 and (id = tt.id or id is null) having id is not null);
@ -2964,21 +2970,21 @@ one two test
explain extended SELECT one,two,ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = '0') as 'test' from t1;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00
2 SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 9 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<expr_cache><`test`.`t1`.`one`,`test`.`t1`.`two`>(<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),(`test`.`t1`.`one`,`test`.`t1`.`two`) in ( <materialize> (select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where (`test`.`t2`.`flag` = '0') ), <primary_index_lookup>(`test`.`t1`.`one` in <temporary table> on distinct_key where ((`test`.`t1`.`one` = `<subquery2>`.`one`) and (`test`.`t1`.`two` = `<subquery2>`.`two`)))))) AS `test` from `test`.`t1`
explain extended SELECT one,two from t1 where ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = 'N');
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00 Using where
2 SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 9 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two` from `test`.`t1` where <expr_cache><`test`.`t1`.`one`,`test`.`t1`.`two`>(<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),(`test`.`t1`.`one`,`test`.`t1`.`two`) in ( <materialize> (select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where (`test`.`t2`.`flag` = 'N') ), <primary_index_lookup>(`test`.`t1`.`one` in <temporary table> on distinct_key where ((`test`.`t1`.`one` = `<subquery2>`.`one`) and (`test`.`t1`.`two` = `<subquery2>`.`two`))))))
explain extended SELECT one,two,ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = '0' group by one,two) as 'test' from t1;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00
2 SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where; Using temporary
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 9 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<expr_cache><`test`.`t1`.`one`,`test`.`t1`.`two`>(<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),(`test`.`t1`.`one`,`test`.`t1`.`two`) in ( <materialize> (select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where (`test`.`t2`.`flag` = '0') group by `test`.`t2`.`one`,`test`.`t2`.`two` ), <primary_index_lookup>(`test`.`t1`.`one` in <temporary table> on distinct_key where ((`test`.`t1`.`one` = `<subquery2>`.`one`) and (`test`.`t1`.`two` = `<subquery2>`.`two`)))))) AS `test` from `test`.`t1`
Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<expr_cache><`test`.`t1`.`one`,`test`.`t1`.`two`>(<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),(`test`.`t1`.`one`,`test`.`t1`.`two`) in ( <materialize> (select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where (`test`.`t2`.`flag` = '0') ), <primary_index_lookup>(`test`.`t1`.`one` in <temporary table> on distinct_key where ((`test`.`t1`.`one` = `<subquery2>`.`one`) and (`test`.`t1`.`two` = `<subquery2>`.`two`)))))) AS `test` from `test`.`t1`
DROP TABLE t1,t2;
set optimizer_switch=@tmp11867_optimizer_switch;
CREATE TABLE t1 (a char(5), b char(5));
@ -3159,7 +3165,7 @@ INSERT INTO t2 VALUES (1),(2),(3);
EXPLAIN SELECT a, a IN (SELECT a FROM t1) FROM t2;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 ALL NULL NULL NULL NULL 3
2 SUBQUERY t1 index a a 5 NULL 5 Using index
2 MATERIALIZED t1 index a a 5 NULL 5 Using index
SELECT a, a IN (SELECT a FROM t1) FROM t2;
a a IN (SELECT a FROM t1)
1 1
@ -3559,7 +3565,7 @@ EXPLAIN
SELECT * FROM t1 WHERE (a,b) = ANY (SELECT a, max(b) FROM t1 GROUP BY a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 9 Using where
2 SUBQUERY t1 ALL NULL NULL NULL NULL 9 Using temporary
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 9 Using temporary
ALTER TABLE t1 ADD INDEX(a);
SELECT * FROM t1 WHERE (a,b) = ANY (SELECT a, max(b) FROM t1 GROUP BY a);
a b
@ -3570,7 +3576,7 @@ EXPLAIN
SELECT * FROM t1 WHERE (a,b) = ANY (SELECT a, max(b) FROM t1 GROUP BY a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 9 Using where
2 SUBQUERY t1 ALL NULL NULL NULL NULL 9 Using temporary
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 9 Using temporary
DROP TABLE t1;
create table t1( f1 int,f2 int);
insert into t1 values (1,1),(2,2);
@ -4354,6 +4360,9 @@ LEFT(t1.a1,1)
SELECT a2 FROM t2 WHERE t2.a2 IN (SELECT t1.a1 FROM t1,t3 WHERE t1.b1=t3.a3);
a2
DROP TABLE t1, t2, t3;
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='semijoin_with_cache=off';
SET optimizer_switch='materialization=off';
CREATE TABLE t1 (a CHAR(1), b VARCHAR(10));
INSERT INTO t1 VALUES ('a', 'aa');
INSERT INTO t1 VALUES ('a', 'aaa');
@ -4364,7 +4373,7 @@ CREATE INDEX I2 ON t1 (b);
EXPLAIN SELECT a,b FROM t1 WHERE b IN (SELECT a FROM t1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where
2 SUBQUERY t1 index I1 I1 2 NULL 2 Using index
2 DEPENDENT SUBQUERY t1 index_subquery I1 I1 2 func 2 Using index; Using where
SELECT a,b FROM t1 WHERE b IN (SELECT a FROM t1);
a b
CREATE TABLE t2 (a VARCHAR(1), b VARCHAR(10));
@ -4374,17 +4383,18 @@ CREATE INDEX I2 ON t2 (b);
EXPLAIN SELECT a,b FROM t2 WHERE b IN (SELECT a FROM t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where
2 SUBQUERY t2 index I1 I1 4 NULL 2 Using index
2 DEPENDENT SUBQUERY t2 index_subquery I1 I1 4 func 2 Using index; Using where
SELECT a,b FROM t2 WHERE b IN (SELECT a FROM t2);
a b
EXPLAIN
SELECT a,b FROM t1 WHERE b IN (SELECT a FROM t1 WHERE LENGTH(a)<500);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where
2 SUBQUERY t1 index I1 I1 2 NULL 2 Using where; Using index
2 DEPENDENT SUBQUERY t1 index_subquery I1 I1 2 func 2 Using index; Using where
SELECT a,b FROM t1 WHERE b IN (SELECT a FROM t1 WHERE LENGTH(a)<500);
a b
DROP TABLE t1,t2;
SET optimizer_switch= @save_optimizer_switch;
CREATE TABLE t1(a INT, b INT);
INSERT INTO t1 VALUES (1,1), (1,2), (2,3), (2,4);
EXPLAIN
@ -4510,18 +4520,21 @@ a
drop table t1, t2;
CREATE TABLE t1 (a INT);
INSERT INTO t1 VALUES (1),(2);
EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT 1 FROM t1 GROUP BY a);
SET @save_join_cache_level=@@join_cache_level;
SET join_cache_level=0;
EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT min(a) FROM t1 GROUP BY a);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00
2 SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using temporary
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 2 100.00 Using temporary
Warnings:
Note 1003 select 1 AS `1` from `test`.`t1` where <expr_cache><1>(<in_optimizer>(1,1 in ( <materialize> (select 1 from `test`.`t1` group by `test`.`t1`.`a` ), <primary_index_lookup>(1 in <temporary table> on distinct_key where ((1 = `<subquery2>`.`1`))))))
EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT 1 FROM t1 WHERE a > 3 GROUP BY a);
Note 1003 select 1 AS `1` from `test`.`t1` where <expr_cache><1>(<in_optimizer>(1,1 in ( <materialize> (select min(`test`.`t1`.`a`) from `test`.`t1` group by `test`.`t1`.`a` ), <primary_index_lookup>(1 in <temporary table> on distinct_key where ((1 = `<subquery2>`.`min(a)`))))))
EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT min(a) FROM t1 WHERE a > 3 GROUP BY a);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00
2 SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using where; Using temporary
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 2 100.00 Using where; Using temporary
Warnings:
Note 1003 select 1 AS `1` from `test`.`t1` where <expr_cache><1>(<in_optimizer>(1,1 in ( <materialize> (select 1 from `test`.`t1` where (`test`.`t1`.`a` > 3) group by `test`.`t1`.`a` ), <primary_index_lookup>(1 in <temporary table> on distinct_key where ((1 = `<subquery2>`.`1`))))))
Note 1003 select 1 AS `1` from `test`.`t1` where <expr_cache><1>(<in_optimizer>(1,1 in ( <materialize> (select min(`test`.`t1`.`a`) from `test`.`t1` where (`test`.`t1`.`a` > 3) group by `test`.`t1`.`a` ), <primary_index_lookup>(1 in <temporary table> on distinct_key where ((1 = `<subquery2>`.`min(a)`))))))
SET join_cache_level=@save_join_cache_level;
DROP TABLE t1;
#
# Bug#45061: Incorrectly market field caused wrong result.
@ -4597,6 +4610,32 @@ pk int_key
3 3
7 3
DROP TABLE t1,t2;
#
# Bug#12329653
# EXPLAIN, UNION, PREPARED STATEMENT, CRASH, SQL_FULL_GROUP_BY
#
CREATE TABLE t1(a1 int);
INSERT INTO t1 VALUES (1),(2);
SELECT @@session.sql_mode INTO @old_sql_mode;
SET SESSION sql_mode='ONLY_FULL_GROUP_BY';
SELECT 1 FROM t1 WHERE 1 < SOME (SELECT a1 FROM t1);
1
1
1
PREPARE stmt FROM
'SELECT 1 UNION ALL
SELECT 1 FROM t1
ORDER BY
(SELECT 1 FROM t1 AS t1_0
WHERE 1 < SOME (SELECT a1 FROM t1)
)' ;
EXECUTE stmt ;
ERROR 21000: Subquery returns more than 1 row
EXECUTE stmt ;
ERROR 21000: Subquery returns more than 1 row
SET SESSION sql_mode=@old_sql_mode;
DEALLOCATE PREPARE stmt;
DROP TABLE t1;
End of 5.0 tests.
create table t_out (subcase char(3),
a1 char(2), b1 char(2), c1 char(2));
@ -4839,8 +4878,6 @@ SELECT * FROM t1
WHERE EXISTS (SELECT DISTINCT a FROM t2 WHERE t1.a < t2.a ORDER BY b);
pk a
1 10
3 30
2 20
DROP TABLE t1,t2;
CREATE TABLE t1 (a INT, b INT, PRIMARY KEY (a), KEY b (b));
INSERT INTO t1 VALUES (1,NULL), (9,NULL);
@ -5551,8 +5588,8 @@ FROM it2,it3);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY ot1 ALL NULL NULL NULL NULL 2
1 PRIMARY ot4 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
2 SUBQUERY it2 ALL NULL NULL NULL NULL 4
2 SUBQUERY it3 ALL NULL NULL NULL NULL 6 Using join buffer (flat, BNL join)
2 MATERIALIZED it2 ALL NULL NULL NULL NULL 4
2 MATERIALIZED it3 ALL NULL NULL NULL NULL 6 Using join buffer (flat, BNL join)
DROP TABLE IF EXISTS ot1, ot4, it2, it3;
#
# Bug#729039: NULL keys used to evaluate subquery
@ -5593,16 +5630,19 @@ CREATE TABLE t2 (pk INTEGER PRIMARY KEY, i INTEGER NOT NULL);
INSERT INTO t2 VALUES (11,1);
INSERT INTO t2 VALUES (12,2);
INSERT INTO t2 VALUES (15,4);
SET @save_join_cache_level=@@join_cache_level;
SET join_cache_level=0;
EXPLAIN SELECT * FROM t1 WHERE pk IN (SELECT it.pk FROM t2 JOIN t2 AS it ON 1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 Using where
2 SUBQUERY t2 index NULL PRIMARY 4 NULL 3 Using index
2 SUBQUERY it index PRIMARY PRIMARY 4 NULL 3 Using index; Using join buffer (flat, BNL join)
2 MATERIALIZED t2 index NULL PRIMARY 4 NULL 3 Using index
2 MATERIALIZED it index PRIMARY PRIMARY 4 NULL 3 Using index
SELECT * FROM t1 WHERE pk IN (SELECT it.pk FROM t2 JOIN t2 AS it ON 1);
pk i
11 0
12 5
15 0
SET join_cache_level=@save_join_cache_level;
DROP table t1,t2;
#
# Bug#751350: crash with pushed condition for outer references when
@ -5610,18 +5650,21 @@ DROP table t1,t2;
#
CREATE TABLE t1 (a int, b int) ;
INSERT INTO t1 VALUES (0,0),(0,0);
set @optimizer_switch_save=@@optimizer_switch;
set @@optimizer_switch='semijoin=off,materialization=on,in_to_exists=on';
EXPLAIN
SELECT b FROM t1
WHERE ('0') IN ( SELECT a FROM t1 GROUP BY a )
GROUP BY b;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using temporary; Using filesort
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using temporary
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using where
SELECT b FROM t1
WHERE ('0') IN ( SELECT a FROM t1 GROUP BY a )
GROUP BY b;
b
0
set @@optimizer_switch=@optimizer_switch_save;
DROP TABLE t1;
#
# Bug #11765713 58705:
@ -5833,6 +5876,8 @@ CREATE TABLE t2 (a int, b int) ;
INSERT INTO t2 VALUES (20,9),(20,9);
create table t3 (d int, e int);
insert into t3 values (2, 9), (3,10);
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='outer_join_with_cache=off';
EXPLAIN
SELECT t2.b , t1.c
FROM t2 LEFT JOIN t1 ON t1.c < 3
@ -5840,16 +5885,16 @@ WHERE (t2.b , t1.c) NOT IN (SELECT * from t3);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 ALL NULL NULL NULL NULL 2
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where
2 SUBQUERY t3 ALL NULL NULL NULL NULL 2
2 MATERIALIZED t3 ALL NULL NULL NULL NULL 2
SELECT t2.b , t1.c
FROM t2 LEFT JOIN t1 ON t1.c < 3
WHERE (t2.b, t1.c) NOT IN (SELECT * from t3);
b c
9 NULL
9 NULL
SET optimizer_switch=@save_optimizer_switch;
drop table t1, t2, t3;
End of 5.3 tests
End of 5.5 tests.
#
# Bug#12763207 - ASSERT IN SUBSELECT::SINGLE_VALUE_TRANSFORMER
#
@ -5882,10 +5927,13 @@ DROP TABLE t1, t2;
CREATE TABLE t1 (a INT, b INT, INDEX (a));
INSERT INTO t1 VALUES (3, 10), (2, 20), (7, 10), (5, 20);
set @tmp_optimizer_switch=@@optimizer_switch;
set optimizer_switch='derived_merge=off,derived_with_keys=off';
EXPLAIN SELECT * FROM (SELECT * FROM t1 WHERE a=7) t;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2
2 DERIVED t1 ref a a 5 const 1
set optimizer_switch=@tmp_optimizer_switch;
EXPLAIN SELECT * FROM t1 WHERE EXISTS (SELECT * FROM t1 WHERE a=7);
id select_type table type possible_keys key key_len ref rows Extra
@ -5964,7 +6012,7 @@ WHERE f1_key != table2.f1_key AND f1_key >= table1.f1 );
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY table1 ALL NULL NULL NULL NULL 2
1 PRIMARY table2 index NULL f1_key 4 NULL 10 Using where; Using index; Using join buffer (flat, BNL join)
2 DEPENDENT SUBQUERY t2 range f1_key f1_key 4 NULL 6 Range checked for each record (index map: 0x1); Using temporary
2 DEPENDENT SUBQUERY t2 index f1_key f1_key 4 NULL 10 Using where; Using index
DROP TABLE t1,t2;
#
# lp:826279: assertion failure with GROUP BY a result of subquery
@ -6026,6 +6074,213 @@ set @@optimizer_switch='in_to_exists=on,semijoin=off,materialization=off,subquer
select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1)))))))))))))))))))))))))))));
a
1
set @@optimizer_switch=@subselect_tmp;
drop table t1;
#
# LP BUG#894397 Wrong result with in_to_exists, constant table , semijoin=OFF,materialization=OFF
#
CREATE TABLE t1 (a varchar(3));
INSERT INTO t1 VALUES ('AAA'),('BBB');
CREATE TABLE t2 (a varchar(3));
INSERT INTO t2 VALUES ('CCC');
set @@optimizer_switch='semijoin=off,materialization=off,in_to_exists=on,subquery_cache=off';
SELECT * FROM t1 WHERE t1.a IN (SELECT t2.a FROM t2 WHERE t2.a < 'ZZZ');
a
set @@optimizer_switch=@subselect_tmp;
drop table t1, t2;
#
# LP bug #859375: Assertion `0' failed in st_select_lex_unit::optimize
# with view , UNION and prepared statement (rewriting fake_select
# condition).
#
CREATE TABLE t1 ( f1 int NOT NULL, f4 varchar(1) NOT NULL) ;
INSERT INTO t1 VALUES (6,'d'),(7,'y');
CREATE TABLE t2 ( f1 int NOT NULL, f2 int NOT NULL) ;
INSERT INTO t2 VALUES (10,7);
CREATE VIEW v2 AS SELECT * FROM t2;
PREPARE st1 FROM "
SELECT *
FROM t1
LEFT JOIN v2 ON ( v2.f2 = t1.f1 )
WHERE v2.f1 NOT IN (
SELECT 1 UNION
SELECT 247
)
";
EXECUTE st1;
f1 f4 f1 f2
7 y 10 7
deallocate prepare st1;
DROP VIEW v2;
DROP TABLE t1,t2;
#
# LP bug #887458 Crash in subselect_union_engine::no_rows with
# double UNION and join_cache_level=3,8
# (IN/ALL/ANY optimizations should not be applied to fake_select)
CREATE TABLE t2 ( a int, b varchar(1)) ;
INSERT IGNORE INTO t2 VALUES (8,'y'),(8,'y');
CREATE TABLE t1 ( b varchar(1)) ;
INSERT IGNORE INTO t1 VALUES (NULL),(NULL);
set @save_join_cache_level=@@join_cache_level;
SET SESSION join_cache_level=3;
SELECT *
FROM t1, t2
WHERE t2.b IN (
SELECT 'm' UNION
SELECT 'm'
) OR t1.b <> SOME (
SELECT 'v' UNION
SELECT 't'
);
b a b
set @@join_cache_level= @save_join_cache_level;
drop table t1,t2;
#
# LP bug #885162 Got error 124 from storage engine with UNION inside
# subquery and join_cache_level=3..8
# (IN/ALL/ANY optimizations should not be applied to fake_select)
#
CREATE TABLE t1 (
f1 varchar(1) DEFAULT NULL
);
INSERT INTO t1 VALUES ('c');
set @save_join_cache_level=@@join_cache_level;
SET SESSION join_cache_level=8;
SELECT * FROM t1 WHERE t1.f1 IN ( SELECT 'k' UNION SELECT 'e' );
f1
set @@join_cache_level= @save_join_cache_level;
drop table t1;
#
# LP BUG#747278 incorrect values of the NULL (no rows) single
# row subquery requested via element_index() interface
#
CREATE TABLE t1 (f1a int, f1b int) ;
INSERT IGNORE INTO t1 VALUES (1,1),(2,2);
CREATE TABLE t2 ( f2 int);
INSERT IGNORE INTO t2 VALUES (3),(4);
CREATE TABLE t3 (f3a int default 1, f3b int default 2);
INSERT INTO t3 VALUES (1,1),(2,2);
set @old_optimizer_switch = @@session.optimizer_switch;
set @@optimizer_switch='materialization=on,partial_match_rowid_merge=on,partial_match_table_scan=off,subquery_cache=off,semijoin=off';
SELECT (SELECT f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a FROM t1) FROM t2;
(SELECT f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a FROM t1)
NULL
NULL
SELECT (SELECT f3a,f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a,f1a FROM t1) FROM t2;
(SELECT f3a,f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a,f1a FROM t1)
NULL
NULL
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1) FROM t2;
(SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1)
NULL
NULL
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1);
(SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1)
NULL
SELECT (SELECT f3a FROM t3 where f3a > 3) IN (SELECT f1a FROM t1) FROM t2;
(SELECT f3a FROM t3 where f3a > 3) IN (SELECT f1a FROM t1)
NULL
NULL
SELECT (SELECT f3a,f3a FROM t3 where f3a > 3) IN (SELECT f1a,f1a FROM t1) FROM t2;
(SELECT f3a,f3a FROM t3 where f3a > 3) IN (SELECT f1a,f1a FROM t1)
NULL
NULL
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1) FROM t2;
(SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1)
NULL
NULL
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1);
(SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1)
NULL
set @@session.optimizer_switch=@old_optimizer_switch;
SELECT (SELECT f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a FROM t1) FROM t2;
(SELECT f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a FROM t1)
NULL
NULL
SELECT (SELECT f3a,f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a,f1a FROM t1) FROM t2;
(SELECT f3a,f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a,f1a FROM t1)
NULL
NULL
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1) FROM t2;
(SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1)
NULL
NULL
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1);
(SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1)
NULL
SELECT (SELECT f3a FROM t3 where f3a > 3) IN (SELECT f1a FROM t1) FROM t2;
(SELECT f3a FROM t3 where f3a > 3) IN (SELECT f1a FROM t1)
NULL
NULL
SELECT (SELECT f3a,f3a FROM t3 where f3a > 3) IN (SELECT f1a,f1a FROM t1) FROM t2;
(SELECT f3a,f3a FROM t3 where f3a > 3) IN (SELECT f1a,f1a FROM t1)
NULL
NULL
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1) FROM t2;
(SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1)
NULL
NULL
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1);
(SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1)
NULL
select (null, null) = (null, null);
(null, null) = (null, null)
NULL
SELECT (SELECT f3a, f3a FROM t3 where f3a > 3) = (0, 0);
(SELECT f3a, f3a FROM t3 where f3a > 3) = (0, 0)
NULL
drop tables t1,t2,t3;
#
# LP BUG#825051 Wrong result with date/datetime and subquery with GROUP BY and in_to_exists
#
CREATE TABLE t1 (a date, KEY (a)) ;
INSERT INTO t1 VALUES ('2009-01-01'),('2009-02-02');
set @old_optimizer_switch = @@optimizer_switch;
SET @@optimizer_switch='semijoin=off,materialization=off,in_to_exists=on,subquery_cache=off';
EXPLAIN SELECT * FROM t1 WHERE a IN (SELECT a AS field1 FROM t1 GROUP BY field1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 index NULL a 4 NULL 2 Using where; Using index
2 DEPENDENT SUBQUERY t1 index_subquery a a 4 func 2 Using index
SELECT * FROM t1 WHERE a IN (SELECT a AS field1 FROM t1 GROUP BY field1);
a
2009-01-01
2009-02-02
SET @@optimizer_switch='semijoin=off,materialization=on,in_to_exists=off,subquery_cache=off';
EXPLAIN SELECT * FROM t1 WHERE a IN (SELECT a AS field1 FROM t1 GROUP BY field1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 index NULL a 4 NULL 2 Using where; Using index
2 MATERIALIZED t1 index NULL a 4 NULL 2 Using index
SELECT * FROM t1 WHERE a IN (SELECT a AS field1 FROM t1 GROUP BY field1);
a
2009-01-01
2009-02-02
set @@optimizer_switch=@old_optimizer_switch;
drop table t1;
#
# LP BUG#908269 incorrect condition in case of subqueries depending
# on constant tables
#
CREATE TABLE t1 ( a INT );
INSERT INTO t1 VALUES (1),(5);
CREATE TABLE t2 ( b INT ) ENGINE=MyISAM;
INSERT INTO t2 VALUES (1);
CREATE TABLE t3 ( c INT );
INSERT INTO t3 VALUES (4),(5);
SET optimizer_switch='subquery_cache=off';
SELECT ( SELECT b FROM t2 WHERE b = a OR EXISTS ( SELECT c FROM t3 WHERE c = b ) ) FROM t1;
( SELECT b FROM t2 WHERE b = a OR EXISTS ( SELECT c FROM t3 WHERE c = b ) )
1
NULL
SELECT ( SELECT b FROM t2 WHERE b = a OR b * 0) FROM t1;
( SELECT b FROM t2 WHERE b = a OR b * 0)
1
NULL
SELECT ( SELECT b FROM t2 WHERE b = a OR rand() * 0) FROM t1;
( SELECT b FROM t2 WHERE b = a OR rand() * 0)
1
NULL
drop table t1,t2,t3;
# return optimizer switch changed in the beginning of this test
set optimizer_switch=@subselect_tmp;
set @optimizer_switch_for_subselect_test=null;
set @join_cache_level_for_subselect_test=NULL;

80
mysql-test/r/subselect_partial_match.result
View File

@ -74,7 +74,7 @@ EXPLAIN
SELECT t1.*, (a1, a2, a3) IN (select * from t2) as in_res from t1;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1
2 SUBQUERY t2 ALL NULL NULL NULL NULL 3
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 3
SELECT t1.*, (a1, a2, a3) IN (select * from t2) as in_res from t1;
a1 a2 a3 in_res
c NULL a NULL
@ -82,7 +82,7 @@ EXPLAIN
SELECT * from t1 where (a1, a2, a3) NOT IN (select * from t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1
2 SUBQUERY t2 ALL NULL NULL NULL NULL 3
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 3
SELECT * from t1 where (a1, a2, a3) NOT IN (select * from t2);
a1 a2 a3
set @@optimizer_switch='partial_match_rowid_merge=off,partial_match_table_scan=on';
@ -90,7 +90,7 @@ EXPLAIN
SELECT t1.*, (a1, a2, a3) IN (select * from t2) as in_res from t1;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1
2 SUBQUERY t2 ALL NULL NULL NULL NULL 3
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 3
SELECT t1.*, (a1, a2, a3) IN (select * from t2) as in_res from t1;
a1 a2 a3 in_res
c NULL a NULL
@ -98,7 +98,7 @@ EXPLAIN
SELECT * from t1 where (a1, a2, a3) NOT IN (select * from t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1
2 SUBQUERY t2 ALL NULL NULL NULL NULL 3
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 3
SELECT * from t1 where (a1, a2, a3) NOT IN (select * from t2);
a1 a2 a3
set @@optimizer_switch=@in_exists;
@ -129,7 +129,7 @@ EXPLAIN
SELECT t1.*, (a1, a2, a3) IN (select * from t2) as in_res from t1;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1
2 SUBQUERY t2 ALL NULL NULL NULL NULL 2
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2
SELECT t1.*, (a1, a2, a3) IN (select * from t2) as in_res from t1;
a1 a2 a3 in_res
NULL y NULL NULL
@ -137,7 +137,7 @@ EXPLAIN
SELECT * from t1 where (a1, a2, a3) NOT IN (select * from t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1
2 SUBQUERY t2 ALL NULL NULL NULL NULL 2
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2
SELECT * from t1 where (a1, a2, a3) NOT IN (select * from t2);
a1 a2 a3
set @@optimizer_switch='partial_match_rowid_merge=off,partial_match_table_scan=on';
@ -145,7 +145,7 @@ EXPLAIN
SELECT t1.*, (a1, a2, a3) IN (select * from t2) as in_res from t1;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1
2 SUBQUERY t2 ALL NULL NULL NULL NULL 2
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2
SELECT t1.*, (a1, a2, a3) IN (select * from t2) as in_res from t1;
a1 a2 a3 in_res
NULL y NULL NULL
@ -153,7 +153,7 @@ EXPLAIN
SELECT * from t1 where (a1, a2, a3) NOT IN (select * from t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1
2 SUBQUERY t2 ALL NULL NULL NULL NULL 2
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2
SELECT * from t1 where (a1, a2, a3) NOT IN (select * from t2);
a1 a2 a3
set @@optimizer_switch=@in_exists;
@ -188,7 +188,7 @@ EXPLAIN
SELECT t1.*, (a1, a2, a3) IN (select * from t2) as in_res from t1;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1
2 SUBQUERY t2 ALL NULL NULL NULL NULL 2
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2
SELECT t1.*, (a1, a2, a3) IN (select * from t2) as in_res from t1;
a1 a2 a3 in_res
NULL g NULL NULL
@ -196,7 +196,7 @@ EXPLAIN
SELECT * from t1 where (a1, a2, a3) NOT IN (select * from t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1
2 SUBQUERY t2 ALL NULL NULL NULL NULL 2
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2
SELECT * from t1 where (a1, a2, a3) NOT IN (select * from t2);
a1 a2 a3
set @@optimizer_switch='partial_match_rowid_merge=off,partial_match_table_scan=on';
@ -204,7 +204,7 @@ EXPLAIN
SELECT t1.*, (a1, a2, a3) IN (select * from t2) as in_res from t1;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1
2 SUBQUERY t2 ALL NULL NULL NULL NULL 2
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2
SELECT t1.*, (a1, a2, a3) IN (select * from t2) as in_res from t1;
a1 a2 a3 in_res
NULL g NULL NULL
@ -212,7 +212,7 @@ EXPLAIN
SELECT * from t1 where (a1, a2, a3) NOT IN (select * from t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1
2 SUBQUERY t2 ALL NULL NULL NULL NULL 2
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2
SELECT * from t1 where (a1, a2, a3) NOT IN (select * from t2);
a1 a2 a3
set @@optimizer_switch=@in_exists;
@ -247,7 +247,7 @@ EXPLAIN
SELECT t1.*, (a1, a2, a3) IN (select * from t2) as in_res from t1;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1
2 SUBQUERY t2 ALL NULL NULL NULL NULL 2
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2
SELECT t1.*, (a1, a2, a3) IN (select * from t2) as in_res from t1;
a1 a2 a3 in_res
b g NULL 0
@ -255,7 +255,7 @@ EXPLAIN
SELECT * from t1 where (a1, a2, a3) NOT IN (select * from t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1
2 SUBQUERY t2 ALL NULL NULL NULL NULL 2
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2
SELECT * from t1 where (a1, a2, a3) NOT IN (select * from t2);
a1 a2 a3
b g NULL
@ -264,7 +264,7 @@ EXPLAIN
SELECT t1.*, (a1, a2, a3) IN (select * from t2) as in_res from t1;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1
2 SUBQUERY t2 ALL NULL NULL NULL NULL 2
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2
SELECT t1.*, (a1, a2, a3) IN (select * from t2) as in_res from t1;
a1 a2 a3 in_res
b g NULL 0
@ -272,7 +272,7 @@ EXPLAIN
SELECT * from t1 where (a1, a2, a3) NOT IN (select * from t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1
2 SUBQUERY t2 ALL NULL NULL NULL NULL 2
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2
SELECT * from t1 where (a1, a2, a3) NOT IN (select * from t2);
a1 a2 a3
b g NULL
@ -766,14 +766,17 @@ CREATE TABLE t2 (b1 int DEFAULT NULL, b2 int DEFAULT NULL);
INSERT INTO t2 VALUES (6,NULL);
INSERT INTO t2 VALUES (NULL,0);
set @@optimizer_switch='materialization=on,semijoin=off,partial_match_rowid_merge=on,partial_match_table_scan=on';
set @tmp_optimizer_switch=@@optimizer_switch;
set optimizer_switch='derived_merge=off,derived_with_keys=off';
EXPLAIN EXTENDED
SELECT * FROM (SELECT * FROM t1 WHERE a1 NOT IN (SELECT b2 FROM t2)) table1;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 100.00
2 DERIVED t1 ALL NULL NULL NULL NULL 2 100.00 Using where
3 SUBQUERY t2 ALL NULL NULL NULL NULL 2 100.00
3 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 100.00
Warnings:
Note 1003 select `table1`.`a1` AS `a1`,`table1`.`a2` AS `a2` from (select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where (not(<in_optimizer>(`test`.`t1`.`a1`,`test`.`t1`.`a1` in ( <materialize> (select `test`.`t2`.`b2` from `test`.`t2` ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery3>`.`b2`)))))))) `table1`
set optimizer_switch=@tmp_optimizer_switch;
DROP TABLE t1, t2;
#
# LP BUG#613009 Crash in Ordered_key::get_field_idx
@ -784,7 +787,7 @@ insert into t1 values (NULL, 'a21'), (NULL, 'a22');
explain select * from t1 where (a1, a2) not in (select a1, a2 from t1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where
2 SUBQUERY t1 ALL NULL NULL NULL NULL 2
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 2
select * from t1 where (a1, a2) not in (select a1, a2 from t1);
a1 a2
drop table t1;
@ -818,8 +821,8 @@ SELECT t3.d , t2.c
FROM t3 LEFT JOIN t2 ON t3.a = t2.a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1
2 SUBQUERY t3 system NULL NULL NULL NULL 1
2 SUBQUERY t2 system NULL NULL NULL NULL 1
2 MATERIALIZED t3 system NULL NULL NULL NULL 1
2 MATERIALIZED t2 system NULL NULL NULL NULL 1
SELECT *
FROM t1
WHERE (t1.d , t1.d) NOT IN (
@ -857,7 +860,7 @@ EXPLAIN
SELECT * FROM t1 WHERE (6, 4 ) NOT IN (SELECT b, a FROM t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2
2 SUBQUERY t2 ALL NULL NULL NULL NULL 2
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2
SELECT * FROM t1 WHERE (6, 4 ) NOT IN (SELECT b, a FROM t2);
c
0
@ -866,7 +869,7 @@ EXPLAIN
SELECT * FROM t1 WHERE (6, 4 ) NOT IN (SELECT a, b FROM t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2
2 SUBQUERY t2 ALL NULL NULL NULL NULL 2
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2
SELECT * FROM t1 WHERE (6, 4 ) NOT IN (SELECT a, b FROM t2);
c
0
@ -902,7 +905,7 @@ set @@optimizer_switch='in_to_exists=off,materialization=on,partial_match_rowid_
EXPLAIN SELECT * FROM t2 WHERE ( 3 , 1 ) NOT IN ( SELECT f1 , f2 FROM t1 );
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 system NULL NULL NULL NULL 1
2 SUBQUERY t1 ALL NULL NULL NULL NULL 3
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 3
SELECT * FROM t2 WHERE ( 3 , 1 ) NOT IN ( SELECT f1 , f2 FROM t1 );
f3
5
@ -948,4 +951,35 @@ SELECT * from outer_sq where (f1, f2) NOT IN (select * from inner_sq);
f1 f2
g c
drop table outer_sq, inner_sq;
#
# LP BUG#893486 Wrong result with partial_match_rowid_merge , NOT IN , NULLs
#
CREATE TABLE t1 (a int, b int);
INSERT INTO t1 VALUES (0,NULL),(2,NULL);
CREATE TABLE t2 (c int, d int);
INSERT INTO t2 VALUES (2,3),(4,5),(6, NULL);
set @@optimizer_switch='materialization=on,partial_match_rowid_merge=on,partial_match_table_scan=off,in_to_exists=off';
EXPLAIN SELECT * FROM t1 WHERE (a, b) NOT IN (SELECT c, d FROM t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 3
SELECT * FROM t1 WHERE (a, b) NOT IN (SELECT c, d FROM t2);
a b
0 NULL
SELECT a, b, (a, b) NOT IN (SELECT c, d FROM t2) subq_res FROM t1;
a b subq_res
0 NULL 1
2 NULL NULL
EXPLAIN SELECT * FROM t1 WHERE (a, b) NOT IN (SELECT c, d FROM t2 WHERE d is not NULL);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 3 Using where
SELECT * FROM t1 WHERE (a, b) NOT IN (SELECT c, d FROM t2 WHERE d is not NULL);
a b
0 NULL
SELECT a, b, (a, b) NOT IN (SELECT c, d FROM t2 WHERE d is not NULL) subq_res FROM t1;
a b subq_res
0 NULL 1
2 NULL NULL
drop table t1,t2;
set @@optimizer_switch=@save_optimizer_switch;

214
mysql-test/r/subselect_sj.result
View File

@ -4,6 +4,9 @@ drop procedure if exists p1;
set @subselect_sj_tmp= @@optimizer_switch;
set optimizer_switch='semijoin=on,firstmatch=on,loosescan=on';
set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
SET optimizer_switch=ifnull(@optimizer_switch_for_subselect_sj_test,'outer_join_with_cache=off');
SET optimizer_switch=ifnull(@optimizer_switch_for_subselect_sj_test,'semijoin_with_cache=off');
set join_cache_level=1;
set @save_optimizer_switch=@@optimizer_switch;
create table t0 (a int);
insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
@ -79,7 +82,7 @@ id select_type tABle type possiBle_keys key key_len ref rows filtered ExtrA
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00
1 PRIMARY A ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY B ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t10 index PRIMARY PRIMARY 4 NULL 10 100.00 Using index
2 MATERIALIZED t10 index PRIMARY PRIMARY 4 NULL 10 100.00 Using index
Warnings:
Note 1003 select `test`.`t1`.`A` AS `A`,`test`.`t1`.`B` AS `B`,`test`.`A`.`A` AS `A`,`test`.`A`.`B` AS `B`,`test`.`B`.`A` AS `A`,`test`.`B`.`B` AS `B` from `test`.`t1` left join (`test`.`t2` `A` join `test`.`t2` `B`) on((<in_optimizer>(`test`.`B`.`A`,`test`.`B`.`A` in ( <mAteriAlize> (select `test`.`t10`.`pk` from `test`.`t10` ), <primAry_index_lookup>(`test`.`B`.`A` in <temporAry tABle> on distinct_key where ((`test`.`B`.`A` = `<suBquery2>`.`pk`))))) And (`test`.`A`.`A` = `test`.`t1`.`A`))) where 1
t2 should be wrapped into OJ-nest, so we have "t1 LJ (t2 J t10)"
@ -88,7 +91,7 @@ select * from t1 left join t2 on (t2.A= t1.A And t2.A in (select pk from t10));
id select_type tABle type possiBle_keys key key_len ref rows filtered ExtrA
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00
1 PRIMARY t2 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t10 index PRIMARY PRIMARY 4 NULL 10 100.00 Using index
2 MATERIALIZED t10 index PRIMARY PRIMARY 4 NULL 10 100.00 Using index
Warnings:
Note 1003 select `test`.`t1`.`A` AS `A`,`test`.`t1`.`B` AS `B`,`test`.`t2`.`A` AS `A`,`test`.`t2`.`B` AS `B` from `test`.`t1` left join `test`.`t2` on((<in_optimizer>(`test`.`t2`.`A`,`test`.`t2`.`A` in ( <mAteriAlize> (select `test`.`t10`.`pk` from `test`.`t10` ), <primAry_index_lookup>(`test`.`t2`.`A` in <temporAry tABle> on distinct_key where ((`test`.`t2`.`A` = `<suBquery2>`.`pk`))))) And (`test`.`t2`.`A` = `test`.`t1`.`A`))) where 1
we shouldn't flatten if we're going to get a join of > MAX_TABLES.
@ -726,8 +729,8 @@ FROM it1 LEFT JOIN it2 ON it2.datetime_key);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 11
1 PRIMARY ot1 ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
2 SUBQUERY it1 index NULL int_key 4 NULL 2 Using index
2 SUBQUERY it2 ALL int_key,datetime_key NULL NULL NULL 20 Using where
2 MATERIALIZED it1 index NULL int_key 4 NULL 2 Using index
2 MATERIALIZED it2 ALL int_key,datetime_key NULL NULL NULL 20 Using where
DROP TABLE ot1, it1, it2;
# End of BUG#38075
#
@ -800,7 +803,7 @@ EXPLAIN EXTENDED SELECT pk FROM t1 WHERE (a, b) IN (SELECT a, b FROM t2 WHERE pk
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 13 func,func 1 100.00
2 SUBQUERY t2 range PRIMARY PRIMARY 4 NULL 2 100.00 Using index condition; Rowid-ordered scan
2 MATERIALIZED t2 range PRIMARY PRIMARY 4 NULL 2 100.00 Using index condition; Rowid-ordered scan
Warnings:
Note 1003 select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`pk` > 0))
SELECT pk FROM t1 WHERE (a, b) IN (SELECT a, b FROM t2 WHERE pk > 0);
@ -967,11 +970,11 @@ SELECT `varchar_key` , `varchar_nokey`
FROM t1
WHERE `varchar_nokey` < 'n' XOR `pk` ) ;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t2 ALL NULL NULL NULL NULL 18 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 8 func,func 1 100.00
2 SUBQUERY t1 ALL varchar_key NULL NULL NULL 15 100.00 Using where
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 15 100.00
1 PRIMARY t2 ALL NULL NULL NULL NULL 18 100.00 Using where; Using join buffer (flat, BNL join)
2 MATERIALIZED t1 ALL varchar_key NULL NULL NULL 15 100.00 Using where
Warnings:
Note 1003 select `test`.`t2`.`varchar_nokey` AS `varchar_nokey` from `test`.`t2` semi join (`test`.`t1`) where ((`test`.`t1`.`varchar_nokey` = `test`.`t1`.`varchar_key`) and ((`test`.`t1`.`varchar_key` < 'n') xor `test`.`t1`.`pk`))
Note 1003 select `test`.`t2`.`varchar_nokey` AS `varchar_nokey` from `test`.`t2` semi join (`test`.`t1`) where ((`test`.`t1`.`varchar_nokey` = `test`.`t1`.`varchar_key`) and (`test`.`t2`.`varchar_nokey` = `test`.`t1`.`varchar_key`) and ((`test`.`t1`.`varchar_key` < 'n') xor `test`.`t1`.`pk`))
SELECT varchar_nokey
FROM t2
WHERE ( `varchar_nokey` , `varchar_nokey` ) IN (
@ -1052,8 +1055,8 @@ id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 5
1 PRIMARY <subquery3> eq_ref distinct_key distinct_key 14 func 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 14 func 1
3 SUBQUERY t3 ALL NULL NULL NULL NULL 5 Using where
2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 Using where
3 MATERIALIZED t3 ALL NULL NULL NULL NULL 5 Using where
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where
SELECT *
FROM t1
WHERE t1.val IN (SELECT t2.val FROM t2
@ -1242,8 +1245,8 @@ A.t1field IN (SELECT A.t1field FROM t2 B) AND
A.t1field IN (SELECT C.t2field FROM t2 C
WHERE C.t2field IN (SELECT D.t2field FROM t2 D));
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY A index PRIMARY PRIMARY 4 NULL 3 Using index; Start temporary
1 PRIMARY B index NULL PRIMARY 4 NULL 3 Using index; End temporary
1 PRIMARY A index PRIMARY PRIMARY 4 NULL 3 Using index
1 PRIMARY B index NULL PRIMARY 4 NULL 3 Using index; Start temporary; End temporary
1 PRIMARY C eq_ref PRIMARY PRIMARY 4 test.A.t1field 1 Using index
1 PRIMARY D eq_ref PRIMARY PRIMARY 4 test.A.t1field 1 Using index
SELECT * FROM t1 A
@ -1275,8 +1278,8 @@ id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
1 PRIMARY B ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join)
1 PRIMARY <subquery3> eq_ref distinct_key distinct_key 5 func 1
2 SUBQUERY C ALL NULL NULL NULL NULL 3
3 SUBQUERY D ALL NULL NULL NULL NULL 3
2 MATERIALIZED C ALL NULL NULL NULL NULL 3
3 MATERIALIZED D ALL NULL NULL NULL NULL 3
drop table t1, t2;
#
# BUG#784441: Abort on semijoin with a view as the inner table
@ -1291,7 +1294,7 @@ SELECT * FROM t1 INNER JOIN t2 ON t2.a != 0 AND t2.a IN (SELECT * FROM v1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join)
2 SUBQUERY <derived3> system NULL NULL NULL NULL 1
2 MATERIALIZED <derived3> system NULL NULL NULL NULL 1
3 DERIVED NULL NULL NULL NULL NULL NULL NULL No tables used
SELECT * FROM t1 INNER JOIN t2 ON t2.a != 0 AND t2.a IN (SELECT * FROM v1);
a a
@ -1396,8 +1399,8 @@ explain select * from t3 where t3.b in (select t2.b from t1 left join t2 on t1.a
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 2
1 PRIMARY t3 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
2 SUBQUERY t1 ALL NULL NULL NULL NULL 2
2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 Using where
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 2
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 Using where
select * from t3 where t3.b in (select t2.b from t1 left join t2 on t1.a=t2.a);
b
drop table t1, t2, t3;
@ -1449,8 +1452,8 @@ set optimizer_switch='firstmatch=off,loosescan=off,materialization=off';
explain
select * from t0 where a in (select t1.a from t1 left join t2 on t1.a=t2.a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t0 ALL NULL NULL NULL NULL 2 Start temporary
1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Using where
1 PRIMARY t0 ALL NULL NULL NULL NULL 2
1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Using where; Start temporary
1 PRIMARY t2 ALL NULL NULL NULL NULL 1 Using where; End temporary
select * from t0 where a in (select t1.a from t1 left join t2 on t1.a=t2.a);
a
@ -1508,8 +1511,8 @@ explain
select * from t0
where a in (select t1.a from t1 left join (t3 join t2 on t3.b=t2.b) on t1.a=t3.a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t0 ALL NULL NULL NULL NULL 2 Start temporary
1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Using where
1 PRIMARY t0 ALL NULL NULL NULL NULL 2
1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Using where; Start temporary
1 PRIMARY t3 ALL NULL NULL NULL NULL 1 Using where
1 PRIMARY t2 ALL NULL NULL NULL NULL 1 Using where; End temporary
select * from t0
@ -1526,8 +1529,8 @@ explain
select * from t0
where a in (select t1.a from t1 left join (t3 join t2 on t3.b=t2.b) on t1.a=t3.a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t0 ALL NULL NULL NULL NULL 2 Start temporary
1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Using where
1 PRIMARY t0 ALL NULL NULL NULL NULL 2
1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Using where; Start temporary
1 PRIMARY t2 ALL NULL NULL NULL NULL 1
1 PRIMARY t3 ALL NULL NULL NULL NULL 2 Using where; End temporary
select * from t0
@ -1721,10 +1724,10 @@ INSERT INTO t4 VALUES (0),(NULL);
explain
SELECT * FROM t1 NATURAL LEFT JOIN (t2, t3) WHERE IFNULL(t2.f3,'foo') IN (SELECT * FROM t4);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 Start temporary
1 PRIMARY t1 ALL NULL NULL NULL NULL 3
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where
1 PRIMARY t3 ALL NULL NULL NULL NULL 5 Using where
1 PRIMARY t4 ALL NULL NULL NULL NULL 2 Using where; End temporary
1 PRIMARY t4 ALL NULL NULL NULL NULL 2 Using where; Start temporary; End temporary
SELECT * FROM t1 NATURAL LEFT JOIN (t2, t3 ) WHERE IFNULL(t2.f3,'foo') IN (SELECT * FROM t4);
f1 f2 f3 f3
2 0 0 0
@ -1782,9 +1785,9 @@ INSERT INTO t3 VALUES (6,5),(6,2),(8,0),(9,1),(6,5);
explain
SELECT * FROM t1, t2 WHERE (t2.a , t1.b) IN (SELECT a, b FROM t3);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Start temporary
1 PRIMARY t1 ALL NULL NULL NULL NULL 2
1 PRIMARY t2 index PRIMARY PRIMARY 4 NULL 2 Using index; Using join buffer (flat, BNL join)
1 PRIMARY t3 ALL b NULL NULL NULL 5 Using where; End temporary
1 PRIMARY t3 ALL b NULL NULL NULL 5 Using where; Start temporary; End temporary
SELECT * FROM t1, t2 WHERE (t2.a , t1.b) IN (SELECT a, b FROM t3);
b a
5 6
@ -1872,6 +1875,8 @@ INSERT INTO t2 VALUES (1,2,4,'22:34:09','v','v'),
(16,8,1,'02:57:29',NULL,NULL),(17,3,1,'16:46:13','r','r'),
(18,3,9,'19:39:02','v','v'),(19,9,1,NULL,NULL,NULL),
(20,6,5,'20:58:33','r','r');
set @tmp_optimizer_switch=@@optimizer_switch;
set optimizer_switch='derived_merge=off,derived_with_keys=off';
explain
SELECT
alias1.a, alias1.b, alias1.c, alias1.d, alias1.e, alias1.f,
@ -1887,10 +1892,10 @@ alias1.c IN (SELECT SQ3_alias1.b
FROM t2 AS SQ3_alias1 STRAIGHT_JOIN t2 AS SQ3_alias2)
LIMIT 100;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20 Start temporary
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20
1 PRIMARY alias2 ALL NULL NULL NULL NULL 20 Using join buffer (flat, BNL join)
1 PRIMARY t2 ALL NULL NULL NULL NULL 20 Using join buffer (flat, BNL join)
1 PRIMARY SQ3_alias1 ALL NULL NULL NULL NULL 20 Using where
1 PRIMARY SQ3_alias1 ALL NULL NULL NULL NULL 20 Using where; Start temporary
1 PRIMARY SQ3_alias2 index NULL PRIMARY 4 NULL 20 Using index; End temporary
2 DERIVED t2 ALL NULL NULL NULL NULL 20
create table t3 as
@ -1907,6 +1912,7 @@ WHERE
alias1.c IN (SELECT SQ3_alias1.b
FROM t2 AS SQ3_alias1 STRAIGHT_JOIN t2 AS SQ3_alias2)
LIMIT 100;
set optimizer_switch=@tmp_optimizer_switch;
drop table t1,t2, t3;
set optimizer_switch=@tmp_830993;
set join_buffer_size= @tmp_830993_jbs;
@ -1942,45 +1948,18 @@ DROP TABLE t1, t2, t4, t5;
#
# BUG#861147: Assertion `fixed == 1' failed in Item_func_eq::val_int() with semijoin + materialization + max_join_size
#
CREATE TABLE t1 ( f2 int) ;
CREATE TABLE t2 ( f1 int, f3 int, f4 varchar(3), f5 varchar(35)) ;
INSERT INTO t2 VALUES (4057,9,'USA','Visalia'),(3993,11,'USA','Waco'),
(3948,14,'USA','Warren'),(3813,57,'USA','Washington'),
(4010,11,'USA','Waterbury'),(4017,11,'USA','West Covina'),
(4004,11,'USA','West Valley City'),(4033,10,'USA','Westminster'),
(3842,34,'USA','Wichita'),(4018,10,'USA','Wichita Falls'),
(3899,19,'USA','Winston-Salem'),(3914,17,'USA','Worcester'),
(3888,20,'USA','Yonkers');
CREATE TABLE t3 ( f3 int, f4 varchar(3)) ;
INSERT INTO t3 VALUES (86,'USA');
CREATE TABLE t4 ( f3 int, f4 varchar(3), f5 varchar(52)) ;
INSERT INTO t4 VALUES (0,'RUS','Belorussian'),(0,'USA','Portuguese');
CREATE TABLE t5 ( f2 int) ;
CREATE TABLE t6 ( f4 varchar(3));
INSERT INTO t6 VALUES ('RUS'),('USA');
create table t1 (a int);
insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
set @tmp_mjs_861147= @@max_join_size;
SET max_join_size=10;
set @tmp_os_861147= @@optimizer_switch;
set @@optimizer_switch='semijoin=on,materialization=on';
SELECT *
FROM t1
WHERE ( 1 , 3 ) IN (
SELECT t2.f1 , MAX( t3.f3 )
FROM t2
JOIN t3
WHERE t3.f4 IN (
SELECT t4.f5
FROM t4
STRAIGHT_JOIN t5
WHERE t4.f4 < t2.f5
)
) AND ( 'p' , 'k' ) IN (
SELECT f4 , f4 FROM t6
);
explain
select * from t1 where a in (select max(A.a + B.a + C.a) from t1 A, t1 B, t1 C);
ERROR 42000: The SELECT would examine more than MAX_JOIN_SIZE rows; check your WHERE and use SET SQL_BIG_SELECTS=1 or SET MAX_JOIN_SIZE=# if the SELECT is okay
set max_join_size= @tmp_mjs_861147;
set optimizer_switch= @tmp_os_861147;
DROP TABLE t1,t2,t3,t4,t5,t6;
drop table t1;
#
# BUG#877288: Wrong result with semijoin + materialization + multipart key
#
@ -1997,8 +1976,8 @@ SELECT * FROM t1 WHERE (a) IN (SELECT a FROM t2 JOIN t3 ON b = a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 9
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
2 SUBQUERY t3 ALL NULL NULL NULL NULL 13 Using where
2 SUBQUERY t2 ref b b 4 test.t3.a 1 Using index
2 MATERIALIZED t3 ALL NULL NULL NULL NULL 13 Using where
2 MATERIALIZED t2 ref b b 4 test.t3.a 1 Using index
SELECT * FROM t1 WHERE (a) IN (SELECT a FROM t2 JOIN t3 ON b = a);
a
19
@ -2050,8 +2029,8 @@ set optimizer_switch='semijoin_with_cache=on';
explain
select * from t1 where t1.a in (select t2.a from t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Start temporary
1 PRIMARY t2 ALL NULL NULL NULL NULL 6 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t1 ALL NULL NULL NULL NULL 4
1 PRIMARY t2 ALL NULL NULL NULL NULL 6 Using where; Start temporary; End temporary; Using join buffer (flat, BNL join)
select * from t1 where t1.a in (select t2.a from t2);
a
1
@ -2060,8 +2039,8 @@ set optimizer_switch='semijoin_with_cache=off';
explain
select * from t1 where t1.a in (select t2.a from t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Start temporary
1 PRIMARY t2 ALL NULL NULL NULL NULL 6 Using where; End temporary
1 PRIMARY t1 ALL NULL NULL NULL NULL 4
1 PRIMARY t2 ALL NULL NULL NULL NULL 6 Using where; Start temporary; End temporary
select * from t1 where t1.a in (select t2.a from t2);
a
1
@ -2101,4 +2080,103 @@ a
5
set optimizer_switch= @tmp_otimizer_switch;
DROP TABLE t1,t2,t3;
#
# Bug #901312: materialized semijoin + right join
#
CREATE TABLE t1 (a int);
INSERT INTO t1 VALUES (4), (1);
CREATE TABLE t2 (b int);
INSERT INTO t2 VALUES (4), (1);
CREATE TABLE t3 (c int);
INSERT INTO t3 VALUES (4), (1);
set @tmp_otimizer_switch= @@optimizer_switch;
SET SESSION optimizer_switch='semijoin=on,materialization=on';
EXPLAIN
SELECT * FROM t1 RIGHT JOIN t2 ON b = a WHERE t2.b IN (SELECT c FROM t3);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 ALL NULL NULL NULL NULL 2
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where
2 MATERIALIZED t3 ALL NULL NULL NULL NULL 2
SELECT * FROM t1 RIGHT JOIN t2 ON b = a WHERE t2.b IN (SELECT c FROM t3);
a b
4 4
1 1
set optimizer_switch= @tmp_otimizer_switch;
DROP TABLE t1,t2,t3;
#
# Bug #901709: assertion failure with record count == 0
#
CREATE TABLE t1 (a int, KEY (a));
INSERT INTO t1 VALUES (4), (6);
CREATE TABLE t2 (a int, KEY (a));
INSERT INTO t2 VALUES (4), (6);
CREATE TABLE t3 (b int);
INSERT INTO t3 VALUES (4);
CREATE TABLE t4 (c int);
SET @tmp_optimizer_switch=@@optimizer_switch;
SET @@optimizer_switch='semijoin=on';
SET @@optimizer_switch='materialization=on';
SET @@optimizer_switch='firstmatch=on';
SET optimizer_switch='semijoin_with_cache=on';
SET optimizer_prune_level=0;
EXPLAIN
SELECT * FROM t1, t2
WHERE t1.a = t2.a AND t2.a IN (SELECT b FROM t3 STRAIGHT_JOIN t4);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t3 system NULL NULL NULL NULL 1
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 1
1 PRIMARY t1 ref a a 5 const 1 Using index
1 PRIMARY t2 ref a a 5 test.t3.b 1 Using index
2 MATERIALIZED t4 ALL NULL NULL NULL NULL 0
SELECT * FROM t1, t2
WHERE t1.a = t2.a AND t2.a IN (SELECT b FROM t3 STRAIGHT_JOIN t4);
a a
SET optimizer_prune_level=DEFAULT;
SET optimizer_switch=@tmp_optimizer_switch;
DROP TABLE t1,t2,t3,t4;
#
# BUG#901399: Wrong result (extra row) with semijoin=ON, materialization=OFF, optimizer_prune_level=0
#
set @opl_901399= @@optimizer_prune_level;
set @os_091399= @@optimizer_switch;
SET optimizer_prune_level=0;
SET optimizer_switch = 'materialization=off';
CREATE TABLE t1 ( c INT ) ENGINE=MyISAM;
INSERT INTO t1 VALUES
(0),(1),(2),(3),(4),(5),
(6),(7),(8),(9),(10),(11),(12);
CREATE TABLE t2 ( a INT, b INT, KEY(a)) ENGINE=MyISAM;
INSERT INTO t2 VALUES (3,20),(2,21),(3,22);
SELECT *
FROM t1 AS alias1, t1 AS alias2
WHERE ( alias1.c, alias2.c )
IN (
SELECT alias3.a, alias3.a
FROM t2 AS alias3, t2 alias4
WHERE alias3.b = alias4.b
);
c c
2 2
3 3
set optimizer_prune_level= @opl_901399;
set optimizer_switch= @os_091399;
DROP TABLE t1,t2;
#
# BUG#912510: Crash in do_copy_not_null with semijoin=ON, firstmatch=ON, aggregate ...
#
CREATE TABLE t1 ( a VARCHAR(1) NOT NULL );
INSERT INTO t1 VALUES ('k'),('l');
CREATE TABLE t2 ( b VARCHAR(1) NOT NULL, KEY(b) );
INSERT INTO t2 VALUES ('k'),('l');
CREATE TABLE t3 ( c VARCHAR(1) NOT NULL, KEY(c) );
INSERT INTO t3 VALUES ('m'),('n');
SELECT a, COUNT(*) FROM t1
WHERE a IN (
SELECT b FROM t2 force index(b), t3 force index(c)
WHERE c = b AND b = a
);
a COUNT(*)
NULL 0
DROP TABLE t1, t2, t3;
set optimizer_switch=@subselect_sj_tmp;

43
mysql-test/r/subselect_sj2.result
View File

@ -1,7 +1,10 @@
set @subselect_sj2_tmp= @@optimizer_switch;
set optimizer_switch='semijoin=on,firstmatch=on,loosescan=on';
set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
drop table if exists t0, t1, t2, t3;
SET optimizer_switch=ifnull(@optimizer_switch_for_subselect_sj2_test,'outer_join_with_cache=off');
SET optimizer_switch=ifnull(@optimizer_switch_for_subselect_sj2_test,'semijoin_with_cache=off');
set join_cache_level=1;
drop table if exists t0, t1, t2, t3, t4, t5;
drop view if exists v1;
create table t0 (a int);
insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
@ -48,7 +51,7 @@ explain select * from t2 where b in (select a from t1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 3
1 PRIMARY t2 ref b b 5 test.t1.a 2
2 SUBQUERY t1 ALL NULL NULL NULL NULL 3 Using where
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 3 Using where
select * from t2 where b in (select a from t1);
a b
1 1
@ -66,9 +69,9 @@ insert into t3 select a,a, a,a,a from t0;
insert into t3 select a,a, a+100,a+100,a+100 from t0;
explain select * from t3 where b in (select a from t1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t3 ALL b NULL NULL NULL 20
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
2 SUBQUERY t1 ALL NULL NULL NULL NULL 3
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 3
1 PRIMARY t3 ref b b 5 test.t1.a 1
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 3 Using where
select * from t3 where b in (select a from t1);
a b pk1 pk2 pk3
1 1 1 1 1
@ -94,7 +97,7 @@ explain select * from t3 where b in (select a from t0);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 10
1 PRIMARY t3 ref b b 5 test.t0.a 1
2 SUBQUERY t0 ALL NULL NULL NULL NULL 10 Using where
2 MATERIALIZED t0 ALL NULL NULL NULL NULL 10 Using where
select * from t3 where b in (select A.a+B.a from t0 A, t0 B where B.a<5);
a b pk1 pk2
0 0 0 0
@ -145,7 +148,7 @@ from t1 ot where a in (select a from t2 it);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 22
1 PRIMARY ot ALL NULL NULL NULL NULL 32 Using where; Using join buffer (flat, BNL join)
2 SUBQUERY it ALL NULL NULL NULL NULL 22
2 MATERIALIZED it ALL NULL NULL NULL NULL 22
select
a, mid(filler1, 1,10), length(filler1)=length(filler2) as Z
from t1 ot where a in (select a from t2 it);
@ -178,7 +181,7 @@ from t2 ot where a in (select a from t1 it);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY ot ALL NULL NULL NULL NULL 22
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
2 SUBQUERY it ALL NULL NULL NULL NULL 32
2 MATERIALIZED it ALL NULL NULL NULL NULL 32
select
a, mid(filler1, 1,10), length(filler1)=length(filler2)
from t2 ot where a in (select a from t1 it);
@ -213,7 +216,7 @@ from t1 ot where a in (select a from t2 it);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 22
1 PRIMARY ot ALL NULL NULL NULL NULL 52 Using where; Using join buffer (flat, BNL join)
2 SUBQUERY it ALL NULL NULL NULL NULL 22
2 MATERIALIZED it ALL NULL NULL NULL NULL 22
select
a, mid(filler1, 1,10), length(filler1)=length(filler2) as Z
from t1 ot where a in (select a from t2 it);
@ -246,7 +249,7 @@ from t2 ot where a in (select a from t1 it);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY ot ALL NULL NULL NULL NULL 22
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
2 SUBQUERY it ALL NULL NULL NULL NULL 52
2 MATERIALIZED it ALL NULL NULL NULL NULL 52
select
a, mid(filler1, 1,10), length(filler1)=length(filler2)
from t2 ot where a in (select a from t1 it);
@ -287,9 +290,9 @@ from t0 where a in
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t0 ALL NULL NULL NULL NULL 10
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 9 func 1 Using where
2 SUBQUERY t1 index a a 5 NULL 10 Using where; Using index
2 SUBQUERY t2 ref a a 5 test.t1.a 1 Using index
2 SUBQUERY t3 ref a a 5 test.t1.a 1 Using index
2 MATERIALIZED t1 index a a 5 NULL 10 Using where; Using index
2 MATERIALIZED t2 ref a a 5 test.t1.a 1 Using index
2 MATERIALIZED t3 ref a a 5 test.t1.a 1 Using index
drop table t0, t1,t2,t3;
CREATE TABLE t1 (
ID int(11) NOT NULL auto_increment,
@ -328,8 +331,8 @@ WHERE Language='English' AND Percentage > 10 AND
t2.Population > 100000);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 range Population,Country Population 4 NULL 1 Using index condition; Rowid-ordered scan; Start temporary
1 PRIMARY t2 eq_ref PRIMARY,Population PRIMARY 3 test.t1.Country 1 Using where
1 PRIMARY t3 eq_ref PRIMARY,Percentage PRIMARY 33 test.t1.Country,const 1 Using index condition; Using where; End temporary
1 PRIMARY t2 eq_ref PRIMARY,Population PRIMARY 3 test.t1.Country 1 Using where; End temporary
1 PRIMARY t3 eq_ref PRIMARY,Percentage PRIMARY 33 test.t1.Country,const 1 Using index condition; Using where
set optimizer_switch=@bug35674_save_optimizer_switch;
DROP TABLE t1,t2,t3;
CREATE TABLE t1 (
@ -367,7 +370,7 @@ SELECT t2.CountryCode FROM t2 WHERE Population > 5000000);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL PRIMARY NULL NULL NULL 31
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 3 func 1
2 SUBQUERY t2 ALL CountryCode NULL NULL NULL 545 Using where
2 MATERIALIZED t2 ALL CountryCode NULL NULL NULL 545 Using where
SELECT Name FROM t1
WHERE t1.Code IN (
SELECT t2.CountryCode FROM t2 WHERE Population > 5000000);
@ -602,7 +605,7 @@ select * from t1 left join t2 on (t2.a= t1.a and t2.a in (select pk from t3));
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3
1 PRIMARY t2 ALL NULL NULL NULL NULL 3 Using where
2 SUBQUERY t3 index PRIMARY PRIMARY 4 NULL 10 Using index
2 MATERIALIZED t3 index PRIMARY PRIMARY 4 NULL 10 Using index
drop table t0, t1, t2, t3;
create table t1 (a int);
insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
@ -716,7 +719,7 @@ explain select count(a) from t2 where a in ( SELECT a FROM t3);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 index a a 5 NULL 1000 Using index
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
2 SUBQUERY t3 index a a 5 NULL 30000 Using index
2 MATERIALIZED t3 index a a 5 NULL 30000 Using index
select count(a) from t2 where a in ( SELECT a FROM t3);
count(a)
1000
@ -872,10 +875,10 @@ SELECT * FROM t3 LEFT JOIN (v1,t2) ON t3.a = t2.a
WHERE t3.b IN (SELECT b FROM t4);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
1 PRIMARY t2 ALL NULL NULL NULL NULL 1 Using where
1 PRIMARY <derived3> ALL NULL NULL NULL NULL 2
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
2 SUBQUERY t4 ALL NULL NULL NULL NULL 2
2 MATERIALIZED t4 ALL NULL NULL NULL NULL 2
3 DERIVED t1 ALL NULL NULL NULL NULL 1
SELECT * FROM t3 LEFT JOIN (v1,t2) ON t3.a = t2.a
WHERE t3.b IN (SELECT b FROM t4);

143
mysql-test/r/subselect_sj2_jcl6.result
View File

@ -7,10 +7,15 @@ set join_cache_level=6;
show variables like 'join_cache_level';
Variable_name Value
join_cache_level 6
set @optimizer_switch_for_subselect_sj2_test=@@optimizer_switch;
set @join_cache_level_for_subselect_sj2_test=@@join_cache_level;
set @subselect_sj2_tmp= @@optimizer_switch;
set optimizer_switch='semijoin=on,firstmatch=on,loosescan=on';
set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
drop table if exists t0, t1, t2, t3;
SET optimizer_switch=ifnull(@optimizer_switch_for_subselect_sj2_test,'outer_join_with_cache=off');
SET optimizer_switch=ifnull(@optimizer_switch_for_subselect_sj2_test,'semijoin_with_cache=off');
set join_cache_level=@join_cache_level_for_subselect_sj2_test;
drop table if exists t0, t1, t2, t3, t4, t5;
drop view if exists v1;
create table t0 (a int);
insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
@ -57,7 +62,7 @@ explain select * from t2 where b in (select a from t1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 3
1 PRIMARY t2 ref b b 5 test.t1.a 2 Using join buffer (flat, BKA join); Key-ordered Rowid-ordered scan
2 SUBQUERY t1 ALL NULL NULL NULL NULL 3 Using where
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 3 Using where
select * from t2 where b in (select a from t1);
a b
1 1
@ -75,9 +80,9 @@ insert into t3 select a,a, a,a,a from t0;
insert into t3 select a,a, a+100,a+100,a+100 from t0;
explain select * from t3 where b in (select a from t1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t3 ALL b NULL NULL NULL 20
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
2 SUBQUERY t1 ALL NULL NULL NULL NULL 3
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 3
1 PRIMARY t3 ref b b 5 test.t1.a 1 Using join buffer (flat, BKA join); Key-ordered Rowid-ordered scan
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 3 Using where
select * from t3 where b in (select a from t1);
a b pk1 pk2 pk3
1 1 1 1 1
@ -102,8 +107,8 @@ from t0 A, t0 B where B.a <5;
explain select * from t3 where b in (select a from t0);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 10
1 PRIMARY t3 ref b b 5 test.t0.a 1 (flat, BKA join); Key-ordered Rowid-ordered scan
2 SUBQUERY t0 ALL NULL NULL NULL NULL 10 Using where
1 PRIMARY t3 ref b b 5 test.t0.a 1 Using join buffer (flat, BKA join); Key-ordered Rowid-ordered scan
2 MATERIALIZED t0 ALL NULL NULL NULL NULL 10 Using where
select * from t3 where b in (select A.a+B.a from t0 A, t0 B where B.a<5);
a b pk1 pk2
0 0 0 0
@ -124,8 +129,9 @@ set join_buffer_size= @save_join_buffer_size;
set max_heap_table_size= @save_max_heap_table_size;
explain select * from t1 where a in (select b from t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 Using where
1 PRIMARY t2 ref b b 5 test.t1.a 2 Using index; FirstMatch(t1)
1 PRIMARY t1 ALL NULL NULL NULL NULL 3
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
2 MATERIALIZED t2 index b b 5 NULL 20 Using index
select * from t1;
a b
1 1
@ -154,7 +160,7 @@ from t1 ot where a in (select a from t2 it);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 22
1 PRIMARY ot hash_ALL NULL #hash#$hj 5 test.it.a 32 Using where; Using join buffer (flat, BNLH join)
2 SUBQUERY it ALL NULL NULL NULL NULL 22 Using where
2 MATERIALIZED it ALL NULL NULL NULL NULL 22 Using where
select
a, mid(filler1, 1,10), length(filler1)=length(filler2) as Z
from t1 ot where a in (select a from t2 it);
@ -187,7 +193,7 @@ from t2 ot where a in (select a from t1 it);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY ot ALL NULL NULL NULL NULL 22
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
2 SUBQUERY it ALL NULL NULL NULL NULL 32
2 MATERIALIZED it ALL NULL NULL NULL NULL 32
select
a, mid(filler1, 1,10), length(filler1)=length(filler2)
from t2 ot where a in (select a from t1 it);
@ -222,7 +228,7 @@ from t1 ot where a in (select a from t2 it);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 22
1 PRIMARY ot hash_ALL NULL #hash#$hj 5 test.it.a 52 Using where; Using join buffer (flat, BNLH join)
2 SUBQUERY it ALL NULL NULL NULL NULL 22 Using where
2 MATERIALIZED it ALL NULL NULL NULL NULL 22 Using where
select
a, mid(filler1, 1,10), length(filler1)=length(filler2) as Z
from t1 ot where a in (select a from t2 it);
@ -255,7 +261,7 @@ from t2 ot where a in (select a from t1 it);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY ot ALL NULL NULL NULL NULL 22
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
2 SUBQUERY it ALL NULL NULL NULL NULL 52
2 MATERIALIZED it ALL NULL NULL NULL NULL 52
select
a, mid(filler1, 1,10), length(filler1)=length(filler2)
from t2 ot where a in (select a from t1 it);
@ -296,9 +302,9 @@ from t0 where a in
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t0 ALL NULL NULL NULL NULL 10
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 9 func 1 Using where
2 SUBQUERY t1 index a a 5 NULL 10 Using where; Using index
2 SUBQUERY t2 ref a a 5 test.t1.a 1 Using index
2 SUBQUERY t3 ref a a 5 test.t1.a 1 Using index
2 MATERIALIZED t1 index a a 5 NULL 10 Using where; Using index
2 MATERIALIZED t2 ref a a 5 test.t1.a 1 Using index
2 MATERIALIZED t3 ref a a 5 test.t1.a 1 Using index
drop table t0, t1,t2,t3;
CREATE TABLE t1 (
ID int(11) NOT NULL auto_increment,
@ -337,8 +343,8 @@ WHERE Language='English' AND Percentage > 10 AND
t2.Population > 100000);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 range Population,Country Population 4 NULL 1 Using index condition; Rowid-ordered scan; Start temporary
1 PRIMARY t2 eq_ref PRIMARY,Population PRIMARY 3 test.t1.Country 1 Using where; Using join buffer (flat, BKA join); Key-ordered Rowid-ordered scan
1 PRIMARY t3 eq_ref PRIMARY,Percentage PRIMARY 33 test.t1.Country,const 1 Using index condition; Using where; End temporary; Using join buffer (incremental, BKA join); Key-ordered Rowid-ordered scan
1 PRIMARY t2 eq_ref PRIMARY,Population PRIMARY 3 test.t1.Country 1 Using where; End temporary; Using join buffer (flat, BKA join); Key-ordered Rowid-ordered scan
1 PRIMARY t3 eq_ref PRIMARY,Percentage PRIMARY 33 test.t1.Country,const 1 Using index condition; Using where; Using join buffer (incremental, BKA join); Key-ordered Rowid-ordered scan
set optimizer_switch=@bug35674_save_optimizer_switch;
DROP TABLE t1,t2,t3;
CREATE TABLE t1 (
@ -376,7 +382,7 @@ SELECT t2.CountryCode FROM t2 WHERE Population > 5000000);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL PRIMARY NULL NULL NULL 31
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 3 func 1
2 SUBQUERY t2 ALL CountryCode NULL NULL NULL 545 Using where
2 MATERIALIZED t2 ALL CountryCode NULL NULL NULL 545 Using where
SELECT Name FROM t1
WHERE t1.Code IN (
SELECT t2.CountryCode FROM t2 WHERE Population > 5000000);
@ -613,7 +619,7 @@ select * from t1 left join t2 on (t2.a= t1.a and t2.a in (select pk from t3));
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3
1 PRIMARY t2 hash_ALL NULL #hash#$hj 5 test.t1.a 3 Using where; Using join buffer (flat, BNLH join)
2 SUBQUERY t3 index PRIMARY PRIMARY 4 NULL 10 Using index
2 MATERIALIZED t3 index PRIMARY PRIMARY 4 NULL 10 Using index
drop table t0, t1, t2, t3;
create table t1 (a int);
insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
@ -727,7 +733,7 @@ explain select count(a) from t2 where a in ( SELECT a FROM t3);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 index a a 5 NULL 1000 Using index
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
2 SUBQUERY t3 index a a 5 NULL 30000 Using index
2 MATERIALIZED t3 index a a 5 NULL 30000 Using index
select count(a) from t2 where a in ( SELECT a FROM t3);
count(a)
1000
@ -883,10 +889,10 @@ SELECT * FROM t3 LEFT JOIN (v1,t2) ON t3.a = t2.a
WHERE t3.b IN (SELECT b FROM t4);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
1 PRIMARY t2 hash_ALL NULL #hash#$hj 5 test.t3.a 1 Using where; Using join buffer (flat, BNLH join)
1 PRIMARY <derived3> ALL NULL NULL NULL NULL 2 Using join buffer (incremental, BNL join)
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
2 SUBQUERY t4 ALL NULL NULL NULL NULL 2
2 MATERIALIZED t4 ALL NULL NULL NULL NULL 2
3 DERIVED t1 ALL NULL NULL NULL NULL 1
SELECT * FROM t3 LEFT JOIN (v1,t2) ON t3.a = t2.a
WHERE t3.b IN (SELECT b FROM t4);
@ -896,8 +902,97 @@ DROP VIEW v1;
DROP TABLE t1,t2,t3,t4;
# This must be the last in the file:
set optimizer_switch=@subselect_sj2_tmp;
#
# Bug #898073: potential incremental join cache for semijoin
#
CREATE TABLE t1 (a int, b varchar(1), KEY (b,a));
INSERT INTO t1 VALUES (0,'x'), (5,'r');
CREATE TABLE t2 (a int) ENGINE=InnoDB;
INSERT INTO t2 VALUES (8);
CREATE TABLE t3 (b varchar(1), c varchar(1)) ENGINE=InnoDB;
INSERT INTO t3 VALUES ('x','x');
CREATE TABLE t4 (a int NOT NULL, b varchar(1)) ENGINE=InnoDB;
INSERT INTO t4 VALUES (20,'r'), (10,'x');
set @tmp_optimizer_switch=@@optimizer_switch;
SET SESSION optimizer_switch='semijoin_with_cache=on';
SET SESSION join_cache_level=2;
EXPLAIN
SELECT t3.* FROM t1 JOIN t3 ON t3.b = t1.b
WHERE c IN (SELECT t4.b FROM t4 JOIN t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 1 Using where
1 PRIMARY t2 ALL NULL NULL NULL NULL 1
1 PRIMARY t1 ref b b 4 test.t3.b 1 Using index
1 PRIMARY t4 ALL NULL NULL NULL NULL 2 Using where; FirstMatch(t2)
SELECT t3.* FROM t1 JOIN t3 ON t3.b = t1.b
WHERE c IN (SELECT t4.b FROM t4 JOIN t2);
b c
x x
set optimizer_switch=@tmp_optimizer_switch;
set join_cache_level=default;
DROP TABLE t1,t2,t3,t4;
#
# Bug #899696: potential incremental join cache for semijoin
#
CREATE TABLE t1 (pk int PRIMARY KEY, a int);
INSERT INTO t1 VALUES (1, 6), (2, 8);
CREATE TABLE t2 (b int) ENGINE=InnoDB;
INSERT INTO t2 VALUES (8);
CREATE TABLE t3 (pk int PRIMARY KEY, a int);
INSERT INTO t3 VALUES (1, 6), (2, 8);
CREATE TABLE t4 (b int) ENGINE=InnoDB;
INSERT INTO t4 VALUES (2);
set @tmp_optimizer_switch=@@optimizer_switch;
SET optimizer_switch = 'semijoin_with_cache=on';
SET join_cache_level = 2;
EXPLAIN
SELECT * FROM t1, t2 WHERE b IN (SELECT a FROM t3, t4 WHERE b = pk);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 ALL NULL NULL NULL NULL 1
1 PRIMARY t4 ALL NULL NULL NULL NULL 1 Using where
1 PRIMARY t1 ALL NULL NULL NULL NULL 2
1 PRIMARY t3 eq_ref PRIMARY PRIMARY 4 test.t4.b 1 Using where; FirstMatch(t4)
SELECT * FROM t1, t2 WHERE b IN (SELECT a FROM t3, t4 WHERE b = pk);
pk a b
1 6 8
set optimizer_switch=@tmp_optimizer_switch;
set join_cache_level=default;
DROP TABLE t1,t2,t3,t4;
#
# Bug #899962: materialized subquery with join_cache_level=3
#
CREATE TABLE t1 (a varchar(1), b varchar(1)) ENGINE=InnoDB;
INSERT INTO t1 VALUES ('v','v');
CREATE TABLE t2 (a varchar(1), b varchar(1)) ENGINE=InnoDB;
INSERT INTO t2 VALUES ('v','v');
set @tmp_optimizer_switch=@@optimizer_switch;
SET optimizer_switch = 'semijoin_with_cache=on';
SET join_cache_level = 3;
EXPLAIN
SELECT * FROM t1 WHERE b IN (SELECT a FROM t2 GROUP BY a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 1
SELECT * FROM t1 WHERE b IN (SELECT a FROM t2 GROUP BY a);
a b
v v
EXPLAIN
SELECT * FROM t1 WHERE b IN (SELECT max(a) FROM t2 GROUP BY a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 1 Using where
1 PRIMARY <subquery2> hash_ALL distinct_key #hash#distinct_key 5 test.t1.b 1 Using join buffer (flat, BNLH join)
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 1 Using temporary
SELECT * FROM t1 WHERE b IN (SELECT max(a) FROM t2 GROUP BY a);
a b
v v
set optimizer_switch=@tmp_optimizer_switch;
set join_cache_level=default;
DROP TABLE t1,t2;
set join_cache_level=default;
show variables like 'join_cache_level';
Variable_name Value
join_cache_level 1
join_cache_level 2
set @@optimizer_switch=@save_optimizer_switch_jcl6;
set @optimizer_switch_for_subselect_sj2_test=NULL;
set @join_cache_level_subselect_sj2_test=NULL;

65
mysql-test/r/subselect_sj2_mat.result
View File

@ -3,7 +3,10 @@ set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
set @subselect_sj2_tmp= @@optimizer_switch;
set optimizer_switch='semijoin=on,firstmatch=on,loosescan=on';
set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
drop table if exists t0, t1, t2, t3;
SET optimizer_switch=ifnull(@optimizer_switch_for_subselect_sj2_test,'outer_join_with_cache=off');
SET optimizer_switch=ifnull(@optimizer_switch_for_subselect_sj2_test,'semijoin_with_cache=off');
set join_cache_level=1;
drop table if exists t0, t1, t2, t3, t4, t5;
drop view if exists v1;
create table t0 (a int);
insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
@ -50,7 +53,7 @@ explain select * from t2 where b in (select a from t1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 3
1 PRIMARY t2 ref b b 5 test.t1.a 2
2 SUBQUERY t1 ALL NULL NULL NULL NULL 3 Using where
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 3 Using where
select * from t2 where b in (select a from t1);
a b
1 1
@ -68,9 +71,9 @@ insert into t3 select a,a, a,a,a from t0;
insert into t3 select a,a, a+100,a+100,a+100 from t0;
explain select * from t3 where b in (select a from t1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t3 ALL b NULL NULL NULL 20
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
2 SUBQUERY t1 ALL NULL NULL NULL NULL 3
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 3
1 PRIMARY t3 ref b b 5 test.t1.a 1
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 3 Using where
select * from t3 where b in (select a from t1);
a b pk1 pk2 pk3
1 1 1 1 1
@ -96,7 +99,7 @@ explain select * from t3 where b in (select a from t0);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 10
1 PRIMARY t3 ref b b 5 test.t0.a 1
2 SUBQUERY t0 ALL NULL NULL NULL NULL 10 Using where
2 MATERIALIZED t0 ALL NULL NULL NULL NULL 10 Using where
select * from t3 where b in (select A.a+B.a from t0 A, t0 B where B.a<5);
a b pk1 pk2
0 0 0 0
@ -147,7 +150,7 @@ from t1 ot where a in (select a from t2 it);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 22
1 PRIMARY ot ALL NULL NULL NULL NULL 32 Using where; Using join buffer (flat, BNL join)
2 SUBQUERY it ALL NULL NULL NULL NULL 22
2 MATERIALIZED it ALL NULL NULL NULL NULL 22
select
a, mid(filler1, 1,10), length(filler1)=length(filler2) as Z
from t1 ot where a in (select a from t2 it);
@ -180,7 +183,7 @@ from t2 ot where a in (select a from t1 it);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY ot ALL NULL NULL NULL NULL 22
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
2 SUBQUERY it ALL NULL NULL NULL NULL 32
2 MATERIALIZED it ALL NULL NULL NULL NULL 32
select
a, mid(filler1, 1,10), length(filler1)=length(filler2)
from t2 ot where a in (select a from t1 it);
@ -215,7 +218,7 @@ from t1 ot where a in (select a from t2 it);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 22
1 PRIMARY ot ALL NULL NULL NULL NULL 52 Using where; Using join buffer (flat, BNL join)
2 SUBQUERY it ALL NULL NULL NULL NULL 22
2 MATERIALIZED it ALL NULL NULL NULL NULL 22
select
a, mid(filler1, 1,10), length(filler1)=length(filler2) as Z
from t1 ot where a in (select a from t2 it);
@ -248,7 +251,7 @@ from t2 ot where a in (select a from t1 it);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY ot ALL NULL NULL NULL NULL 22
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
2 SUBQUERY it ALL NULL NULL NULL NULL 52
2 MATERIALIZED it ALL NULL NULL NULL NULL 52
select
a, mid(filler1, 1,10), length(filler1)=length(filler2)
from t2 ot where a in (select a from t1 it);
@ -289,9 +292,9 @@ from t0 where a in
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t0 ALL NULL NULL NULL NULL 10
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 9 func 1 Using where
2 SUBQUERY t1 index a a 5 NULL 10 Using where; Using index
2 SUBQUERY t2 ref a a 5 test.t1.a 1 Using index
2 SUBQUERY t3 ref a a 5 test.t1.a 1 Using index
2 MATERIALIZED t1 index a a 5 NULL 10 Using where; Using index
2 MATERIALIZED t2 ref a a 5 test.t1.a 1 Using index
2 MATERIALIZED t3 ref a a 5 test.t1.a 1 Using index
drop table t0, t1,t2,t3;
CREATE TABLE t1 (
ID int(11) NOT NULL auto_increment,
@ -330,8 +333,8 @@ WHERE Language='English' AND Percentage > 10 AND
t2.Population > 100000);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 range Population,Country Population 4 NULL 1 Using index condition; Rowid-ordered scan; Start temporary
1 PRIMARY t2 eq_ref PRIMARY,Population PRIMARY 3 test.t1.Country 1 Using where
1 PRIMARY t3 eq_ref PRIMARY,Percentage PRIMARY 33 test.t1.Country,const 1 Using index condition; Using where; End temporary
1 PRIMARY t2 eq_ref PRIMARY,Population PRIMARY 3 test.t1.Country 1 Using where; End temporary
1 PRIMARY t3 eq_ref PRIMARY,Percentage PRIMARY 33 test.t1.Country,const 1 Using index condition; Using where
set optimizer_switch=@bug35674_save_optimizer_switch;
DROP TABLE t1,t2,t3;
CREATE TABLE t1 (
@ -369,7 +372,7 @@ SELECT t2.CountryCode FROM t2 WHERE Population > 5000000);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL PRIMARY NULL NULL NULL 31
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 3 func 1
2 SUBQUERY t2 ALL CountryCode NULL NULL NULL 545 Using where
2 MATERIALIZED t2 ALL CountryCode NULL NULL NULL 545 Using where
SELECT Name FROM t1
WHERE t1.Code IN (
SELECT t2.CountryCode FROM t2 WHERE Population > 5000000);
@ -604,7 +607,7 @@ select * from t1 left join t2 on (t2.a= t1.a and t2.a in (select pk from t3));
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3
1 PRIMARY t2 ALL NULL NULL NULL NULL 3 Using where
2 SUBQUERY t3 index PRIMARY PRIMARY 4 NULL 10 Using index
2 MATERIALIZED t3 index PRIMARY PRIMARY 4 NULL 10 Using index
drop table t0, t1, t2, t3;
create table t1 (a int);
insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
@ -718,7 +721,7 @@ explain select count(a) from t2 where a in ( SELECT a FROM t3);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 index a a 5 NULL 1000 Using index
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
2 SUBQUERY t3 index a a 5 NULL 30000 Using index
2 MATERIALIZED t3 index a a 5 NULL 30000 Using index
select count(a) from t2 where a in ( SELECT a FROM t3);
count(a)
1000
@ -874,10 +877,10 @@ SELECT * FROM t3 LEFT JOIN (v1,t2) ON t3.a = t2.a
WHERE t3.b IN (SELECT b FROM t4);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
1 PRIMARY t2 ALL NULL NULL NULL NULL 1 Using where
1 PRIMARY <derived3> ALL NULL NULL NULL NULL 2
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
2 SUBQUERY t4 ALL NULL NULL NULL NULL 2
2 MATERIALIZED t4 ALL NULL NULL NULL NULL 2
3 DERIVED t1 ALL NULL NULL NULL NULL 1
SELECT * FROM t3 LEFT JOIN (v1,t2) ON t3.a = t2.a
WHERE t3.b IN (SELECT b FROM t4);
@ -891,3 +894,25 @@ set optimizer_switch=default;
select @@optimizer_switch like '%materialization=on%';
@@optimizer_switch like '%materialization=on%'
1
#
# BUG#906385: EXPLAIN EXTENDED crashes in TABLE_LIST::print with limited max_join_size
#
CREATE TABLE t1 ( a INT );
CREATE TABLE t2 ( b INT );
INSERT INTO t1 VALUES (1),(2);
INSERT INTO t2 VALUES
(1),(2),(3),(4),(5),
(6),(7),(8),(9),(10),
(11),(12),(13),(14),(15),
(16),(17),(18),(19),(20);
set @tmp_906385=@@max_join_size;
SET max_join_size = 80;
EXPLAIN EXTENDED
SELECT COUNT(*) FROM t1
WHERE a IN
( SELECT b FROM t2 GROUP BY b )
AND ( 6 ) IN
( SELECT MIN( t2.b ) FROM t2 alias1, t2 );
ERROR 42000: The SELECT would examine more than MAX_JOIN_SIZE rows; check your WHERE and use SET SQL_BIG_SELECTS=1 or SET MAX_JOIN_SIZE=# if the SELECT is okay
DROP TABLE t1, t2;
set max_join_size= @tmp_906385;

59
mysql-test/r/subselect_sj_aria.result Normal file
View File

@ -0,0 +1,59 @@
drop table if exists t1,t2,t3,t4;
#
# BUG#887468: Second assertion `keypart_map' failed in maria_rkey with semijoin
#
CREATE TABLE t1 (
pk int(11) NOT NULL AUTO_INCREMENT,
col_int_key int(11) DEFAULT NULL,
col_varchar_key varchar(1) DEFAULT NULL,
dummy char(30),
PRIMARY KEY (pk),
KEY col_varchar_key (col_varchar_key,col_int_key)
) ENGINE=Aria AUTO_INCREMENT=30 DEFAULT CHARSET=latin1 PAGE_CHECKSUM=1;
INSERT INTO t1 (pk, col_varchar_key, col_int_key) VALUES
(10,NULL,0), (11,'d',4), (12,'g',8), (13,'x',NULL), (14,'f',NULL),
(15,'p',0), (16,'j',NULL), (17,'c',8), (18,'z',8), (19,'j',6), (20,NULL,2),
(21,'p',3), (22,'w',1), (23,'c',NULL), (24,'j',1), (25,'f',10), (26,'v',2),
(27,'f',103), (28,'q',3), (29,'y',6);
CREATE TABLE t2 (
pk int(11) NOT NULL AUTO_INCREMENT,
col_int_key int(11) DEFAULT NULL,
dummy char(36),
PRIMARY KEY (pk),
KEY col_int_key (col_int_key)
) ENGINE=Aria AUTO_INCREMENT=101 DEFAULT CHARSET=latin1 PAGE_CHECKSUM=1;
INSERT INTO t2 ( pk, col_int_key) VALUES
(1,8), (2,2), (3,9), (4,6), (5,NULL), (6,NULL), (7,48), (8,228), (9,3), (10,5),
(11,39), (12,6), (13,8), (14,3), (15,NULL), (16,2), (17,6), (18,3), (19,1), (20,4),
(21,3), (22,1), (23,NULL), (24,97), (25,0), (26,0), (27,9), (28,5), (29,9), (30,0),
(31,2), (32,172), (33,NULL), (34,5), (35,119), (36,1), (37,4), (38,8), (39,NULL), (40,6),
(41,5), (42,5), (43,1), (44,7), (45,2), (46,8), (47,9), (48,NULL), (49,NULL), (50,3),
(51,172), (52,NULL), (53,6), (54,6), (55,5), (56,4), (57,3), (58,2), (59,7), (60,4),
(61,6), (62,0), (63,8), (64,5), (65,8), (66,2), (67,9), (68,7), (69,5), (70,7),
(71,0), (72,4), (73,3), (74,1), (75,0), (76,6), (77,2), (78,NULL), (79,8), (80,NULL),
(81,NULL), (82,NULL), (83,3), (84,7), (85,3), (86,5), (87,5), (88,1), (89,2), (90,1),
(91,7), (92,1), (93,9), (94,9), (95,8), (96,3), (97,7), (98,4), (99,9), (100,0);
CREATE TABLE t3 (
pk int(11) NOT NULL AUTO_INCREMENT,
dummy char(34),
col_varchar_key varchar(1) DEFAULT NULL,
col_int_key int(11) DEFAULT NULL,
PRIMARY KEY (pk),
KEY col_varchar_key (col_varchar_key,col_int_key)
) ENGINE=Aria AUTO_INCREMENT=4 DEFAULT CHARSET=latin1 PAGE_CHECKSUM=1;
INSERT INTO t3 (pk, col_varchar_key) VALUES (1,'v'), (2,'c'), (3,NULL);
CREATE TABLE t4 (
pk int(11) NOT NULL AUTO_INCREMENT,
dummy char (38),
PRIMARY KEY (pk)
) ENGINE=Aria AUTO_INCREMENT=4 DEFAULT CHARSET=latin1 PAGE_CHECKSUM=1;
INSERT INTO t4 (pk) VALUES (1), (2), (3);
SELECT *
FROM t1
JOIN t2
ON ( t2.col_int_key = t1.pk )
WHERE t1.col_varchar_key IN (
SELECT t3.col_varchar_key FROM t3, t4
);
pk col_int_key col_varchar_key dummy pk col_int_key dummy
drop table t1, t2, t3, t4;

243
mysql-test/r/subselect_sj_jcl6.result
View File

@ -9,12 +9,17 @@ set join_cache_level=6;
show variables like 'join_cache_level';
Variable_name Value
join_cache_level 6
set @optimizer_switch_for_subselect_sj_test=@@optimizer_switch;
set @join_cache_level_for_subselect_sj_test=@@join_cache_level;
drop table if exists t0, t1, t2, t3, t4, t5, t10, t11, t12;
drop view if exists v1, v2, v3, v4;
drop procedure if exists p1;
set @subselect_sj_tmp= @@optimizer_switch;
set optimizer_switch='semijoin=on,firstmatch=on,loosescan=on';
set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
SET optimizer_switch=ifnull(@optimizer_switch_for_subselect_sj_test,'outer_join_with_cache=off');
SET optimizer_switch=ifnull(@optimizer_switch_for_subselect_sj_test,'semijoin_with_cache=off');
set join_cache_level=@join_cache_level_for_subselect_sj_test;
set @save_optimizer_switch=@@optimizer_switch;
create table t0 (a int);
insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
@ -90,7 +95,7 @@ id select_type tABle type possiBle_keys key key_len ref rows filtered ExtrA
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00
1 PRIMARY A ALL NULL NULL NULL NULL 3 100.00 Using where; Using join Buffer (flAt, BNL join)
1 PRIMARY B ALL NULL NULL NULL NULL 3 100.00 Using where; Using join Buffer (incrementAl, BNL join)
2 SUBQUERY t10 index PRIMARY PRIMARY 4 NULL 10 100.00 Using index
2 MATERIALIZED t10 index PRIMARY PRIMARY 4 NULL 10 100.00 Using index
Warnings:
Note 1003 select `test`.`t1`.`A` AS `A`,`test`.`t1`.`B` AS `B`,`test`.`A`.`A` AS `A`,`test`.`A`.`B` AS `B`,`test`.`B`.`A` AS `A`,`test`.`B`.`B` AS `B` from `test`.`t1` left join (`test`.`t2` `A` join `test`.`t2` `B`) on((<in_optimizer>(`test`.`B`.`A`,`test`.`B`.`A` in ( <mAteriAlize> (select `test`.`t10`.`pk` from `test`.`t10` ), <primAry_index_lookup>(`test`.`B`.`A` in <temporAry tABle> on distinct_key where ((`test`.`B`.`A` = `<suBquery2>`.`pk`))))) And (`test`.`A`.`A` = `test`.`t1`.`A`))) where 1
t2 should be wrapped into OJ-nest, so we have "t1 LJ (t2 J t10)"
@ -99,7 +104,7 @@ select * from t1 left join t2 on (t2.A= t1.A And t2.A in (select pk from t10));
id select_type tABle type possiBle_keys key key_len ref rows filtered ExtrA
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00
1 PRIMARY t2 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join Buffer (flAt, BNL join)
2 SUBQUERY t10 index PRIMARY PRIMARY 4 NULL 10 100.00 Using index
2 MATERIALIZED t10 index PRIMARY PRIMARY 4 NULL 10 100.00 Using index
Warnings:
Note 1003 select `test`.`t1`.`A` AS `A`,`test`.`t1`.`B` AS `B`,`test`.`t2`.`A` AS `A`,`test`.`t2`.`B` AS `B` from `test`.`t1` left join `test`.`t2` on((<in_optimizer>(`test`.`t2`.`A`,`test`.`t2`.`A` in ( <mAteriAlize> (select `test`.`t10`.`pk` from `test`.`t10` ), <primAry_index_lookup>(`test`.`t2`.`A` in <temporAry tABle> on distinct_key where ((`test`.`t2`.`A` = `<suBquery2>`.`pk`))))) And (`test`.`t2`.`A` = `test`.`t1`.`A`))) where 1
we shouldn't flatten if we're going to get a join of > MAX_TABLES.
@ -737,8 +742,8 @@ FROM it1 LEFT JOIN it2 ON it2.datetime_key);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 11
1 PRIMARY ot1 ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
2 SUBQUERY it1 index NULL int_key 4 NULL 2 Using index
2 SUBQUERY it2 ALL int_key,datetime_key NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
2 MATERIALIZED it1 index NULL int_key 4 NULL 2 Using index
2 MATERIALIZED it2 ALL int_key,datetime_key NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
DROP TABLE ot1, it1, it2;
# End of BUG#38075
#
@ -811,7 +816,7 @@ EXPLAIN EXTENDED SELECT pk FROM t1 WHERE (a, b) IN (SELECT a, b FROM t2 WHERE pk
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 13 func,func 1 100.00
2 SUBQUERY t2 range PRIMARY PRIMARY 4 NULL 2 100.00 Using index condition; Rowid-ordered scan
2 MATERIALIZED t2 range PRIMARY PRIMARY 4 NULL 2 100.00 Using index condition; Rowid-ordered scan
Warnings:
Note 1003 select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`pk` > 0))
SELECT pk FROM t1 WHERE (a, b) IN (SELECT a, b FROM t2 WHERE pk > 0);
@ -978,11 +983,11 @@ SELECT `varchar_key` , `varchar_nokey`
FROM t1
WHERE `varchar_nokey` < 'n' XOR `pk` ) ;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t2 ALL NULL NULL NULL NULL 18 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 8 func,func 1 100.00
2 SUBQUERY t1 ALL varchar_key NULL NULL NULL 15 100.00 Using where
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 15 100.00
1 PRIMARY t2 ALL NULL NULL NULL NULL 18 100.00 Using where; Using join buffer (flat, BNL join)
2 MATERIALIZED t1 ALL varchar_key NULL NULL NULL 15 100.00 Using where
Warnings:
Note 1003 select `test`.`t2`.`varchar_nokey` AS `varchar_nokey` from `test`.`t2` semi join (`test`.`t1`) where ((`test`.`t1`.`varchar_nokey` = `test`.`t1`.`varchar_key`) and ((`test`.`t1`.`varchar_key` < 'n') xor `test`.`t1`.`pk`))
Note 1003 select `test`.`t2`.`varchar_nokey` AS `varchar_nokey` from `test`.`t2` semi join (`test`.`t1`) where ((`test`.`t1`.`varchar_nokey` = `test`.`t1`.`varchar_key`) and (`test`.`t2`.`varchar_nokey` = `test`.`t1`.`varchar_key`) and ((`test`.`t1`.`varchar_key` < 'n') xor `test`.`t1`.`pk`))
SELECT varchar_nokey
FROM t2
WHERE ( `varchar_nokey` , `varchar_nokey` ) IN (
@ -1063,8 +1068,8 @@ id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 5
1 PRIMARY <subquery3> eq_ref distinct_key distinct_key 14 func 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 14 func 1
3 SUBQUERY t3 ALL NULL NULL NULL NULL 5 Using where
2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 Using where
3 MATERIALIZED t3 ALL NULL NULL NULL NULL 5 Using where
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where
SELECT *
FROM t1
WHERE t1.val IN (SELECT t2.val FROM t2
@ -1253,8 +1258,8 @@ A.t1field IN (SELECT A.t1field FROM t2 B) AND
A.t1field IN (SELECT C.t2field FROM t2 C
WHERE C.t2field IN (SELECT D.t2field FROM t2 D));
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY A index PRIMARY PRIMARY 4 NULL 3 Using index; Start temporary
1 PRIMARY B index NULL PRIMARY 4 NULL 3 Using index; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY A index PRIMARY PRIMARY 4 NULL 3 Using index
1 PRIMARY B index NULL PRIMARY 4 NULL 3 Using index; FirstMatch(A); Using join buffer (flat, BNL join)
1 PRIMARY C eq_ref PRIMARY PRIMARY 4 test.A.t1field 1 Using index
1 PRIMARY D eq_ref PRIMARY PRIMARY 4 test.A.t1field 1 Using index
SELECT * FROM t1 A
@ -1286,8 +1291,8 @@ id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
1 PRIMARY B ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join)
1 PRIMARY <subquery3> eq_ref distinct_key distinct_key 5 func 1
2 SUBQUERY C ALL NULL NULL NULL NULL 3
3 SUBQUERY D ALL NULL NULL NULL NULL 3
2 MATERIALIZED C ALL NULL NULL NULL NULL 3
3 MATERIALIZED D ALL NULL NULL NULL NULL 3
drop table t1, t2;
#
# BUG#784441: Abort on semijoin with a view as the inner table
@ -1302,7 +1307,7 @@ SELECT * FROM t1 INNER JOIN t2 ON t2.a != 0 AND t2.a IN (SELECT * FROM v1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join)
2 SUBQUERY <derived3> system NULL NULL NULL NULL 1
2 MATERIALIZED <derived3> system NULL NULL NULL NULL 1
3 DERIVED NULL NULL NULL NULL NULL NULL NULL No tables used
SELECT * FROM t1 INNER JOIN t2 ON t2.a != 0 AND t2.a IN (SELECT * FROM v1);
a a
@ -1407,8 +1412,8 @@ explain select * from t3 where t3.b in (select t2.b from t1 left join t2 on t1.a
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 2
1 PRIMARY t3 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
2 SUBQUERY t1 ALL NULL NULL NULL NULL 2
2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join)
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 2
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join)
select * from t3 where t3.b in (select t2.b from t1 left join t2 on t1.a=t2.a);
b
drop table t1, t2, t3;
@ -1460,8 +1465,8 @@ set optimizer_switch='firstmatch=off,loosescan=off,materialization=off';
explain
select * from t0 where a in (select t1.a from t1 left join t2 on t1.a=t2.a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t0 ALL NULL NULL NULL NULL 2 Start temporary
1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Using where; Using join buffer (flat, BNL join)
1 PRIMARY t0 ALL NULL NULL NULL NULL 2
1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Using where; Start temporary; Using join buffer (flat, BNL join)
1 PRIMARY t2 ALL NULL NULL NULL NULL 1 Using where; End temporary; Using join buffer (incremental, BNL join)
select * from t0 where a in (select t1.a from t1 left join t2 on t1.a=t2.a);
a
@ -1519,8 +1524,8 @@ explain
select * from t0
where a in (select t1.a from t1 left join (t3 join t2 on t3.b=t2.b) on t1.a=t3.a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t0 ALL NULL NULL NULL NULL 2 Start temporary
1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Using where; Using join buffer (flat, BNL join)
1 PRIMARY t0 ALL NULL NULL NULL NULL 2
1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Using where; Start temporary; Using join buffer (flat, BNL join)
1 PRIMARY t3 ALL NULL NULL NULL NULL 1 Using where; Using join buffer (incremental, BNL join)
1 PRIMARY t2 ALL NULL NULL NULL NULL 1 Using where; End temporary; Using join buffer (incremental, BNL join)
select * from t0
@ -1537,8 +1542,8 @@ explain
select * from t0
where a in (select t1.a from t1 left join (t3 join t2 on t3.b=t2.b) on t1.a=t3.a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t0 ALL NULL NULL NULL NULL 2 Start temporary
1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Using where; Using join buffer (flat, BNL join)
1 PRIMARY t0 ALL NULL NULL NULL NULL 2
1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Using where; Start temporary; Using join buffer (flat, BNL join)
1 PRIMARY t2 ALL NULL NULL NULL NULL 1 Using join buffer (incremental, BNL join)
1 PRIMARY t3 ALL NULL NULL NULL NULL 2 Using where; End temporary; Using join buffer (incremental, BNL join)
select * from t0
@ -1639,12 +1644,13 @@ CREATE VIEW v4 AS SELECT DISTINCT f2 FROM t4 ;
explain extended
SELECT * FROM t1 NATURAL LEFT JOIN (t2, t3) WHERE t2.f3 IN (SELECT * FROM t4);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 100.00 Using where
1 PRIMARY t4 ref f2 f2 5 test.t2.f3 2 100.00 Using index; FirstMatch(t2)
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1 100.00
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, BNL join)
1 PRIMARY t3 ALL NULL NULL NULL NULL 5 100.00 Using where; Using join buffer (incremental, BNL join)
2 MATERIALIZED t4 index f2 f2 5 NULL 2 100.00 Using index
Warnings:
Note 1003 select `test`.`t1`.`f1` AS `f1`,`test`.`t1`.`f2` AS `f2`,`test`.`t2`.`f3` AS `f3`,`test`.`t3`.`f3` AS `f3` from `test`.`t1` semi join (`test`.`t4`) join `test`.`t2` join `test`.`t3` where ((`test`.`t1`.`f2` = `test`.`t2`.`f2`) and (`test`.`t3`.`f1` = `test`.`t1`.`f1`) and (`test`.`t4`.`f2` = `test`.`t2`.`f3`))
Note 1003 select `test`.`t1`.`f1` AS `f1`,`test`.`t1`.`f2` AS `f2`,`test`.`t2`.`f3` AS `f3`,`test`.`t3`.`f3` AS `f3` from `test`.`t1` semi join (`test`.`t4`) join `test`.`t2` join `test`.`t3` where ((`test`.`t1`.`f2` = `test`.`t2`.`f2`) and (`test`.`t3`.`f1` = `test`.`t1`.`f1`))
SELECT * FROM t1 NATURAL LEFT JOIN (t2, t3) WHERE t2.f3 IN (SELECT * FROM t4);
f1 f2 f3 f3
2 0 0 0
@ -1732,10 +1738,10 @@ INSERT INTO t4 VALUES (0),(NULL);
explain
SELECT * FROM t1 NATURAL LEFT JOIN (t2, t3) WHERE IFNULL(t2.f3,'foo') IN (SELECT * FROM t4);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 Start temporary
1 PRIMARY t1 ALL NULL NULL NULL NULL 3
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join)
1 PRIMARY t3 ALL NULL NULL NULL NULL 5 Using where; Using join buffer (incremental, BNL join)
1 PRIMARY t4 ALL NULL NULL NULL NULL 2 Using where; End temporary; Using join buffer (incremental, BNL join)
1 PRIMARY t4 ALL NULL NULL NULL NULL 2 Using where; Start temporary; End temporary; Using join buffer (incremental, BNL join)
SELECT * FROM t1 NATURAL LEFT JOIN (t2, t3 ) WHERE IFNULL(t2.f3,'foo') IN (SELECT * FROM t4);
f1 f2 f3 f3
2 0 0 0
@ -1793,9 +1799,9 @@ INSERT INTO t3 VALUES (6,5),(6,2),(8,0),(9,1),(6,5);
explain
SELECT * FROM t1, t2 WHERE (t2.a , t1.b) IN (SELECT a, b FROM t3);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Start temporary
1 PRIMARY t1 ALL NULL NULL NULL NULL 2
1 PRIMARY t2 index PRIMARY PRIMARY 4 NULL 2 Using index; Using join buffer (flat, BNL join)
1 PRIMARY t3 ALL b NULL NULL NULL 5 Using where; End temporary; Using join buffer (incremental, BNL join)
1 PRIMARY t3 ALL b NULL NULL NULL 5 Using where; Start temporary; End temporary; Using join buffer (incremental, BNL join)
SELECT * FROM t1, t2 WHERE (t2.a , t1.b) IN (SELECT a, b FROM t3);
b a
5 6
@ -1883,6 +1889,8 @@ INSERT INTO t2 VALUES (1,2,4,'22:34:09','v','v'),
(16,8,1,'02:57:29',NULL,NULL),(17,3,1,'16:46:13','r','r'),
(18,3,9,'19:39:02','v','v'),(19,9,1,NULL,NULL,NULL),
(20,6,5,'20:58:33','r','r');
set @tmp_optimizer_switch=@@optimizer_switch;
set optimizer_switch='derived_merge=off,derived_with_keys=off';
explain
SELECT
alias1.a, alias1.b, alias1.c, alias1.d, alias1.e, alias1.f,
@ -1898,10 +1906,10 @@ alias1.c IN (SELECT SQ3_alias1.b
FROM t2 AS SQ3_alias1 STRAIGHT_JOIN t2 AS SQ3_alias2)
LIMIT 100;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20 Start temporary
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20
1 PRIMARY alias2 ALL NULL NULL NULL NULL 20 Using join buffer (flat, BNL join)
1 PRIMARY t2 ALL NULL NULL NULL NULL 20 Using join buffer (incremental, BNL join)
1 PRIMARY SQ3_alias1 ALL NULL NULL NULL NULL 20 Using where; Using join buffer (incremental, BNL join)
1 PRIMARY SQ3_alias1 ALL NULL NULL NULL NULL 20 Using where; Start temporary; Using join buffer (incremental, BNL join)
1 PRIMARY SQ3_alias2 index NULL PRIMARY 4 NULL 20 Using index; End temporary; Using join buffer (incremental, BNL join)
2 DERIVED t2 ALL NULL NULL NULL NULL 20
create table t3 as
@ -1918,6 +1926,7 @@ WHERE
alias1.c IN (SELECT SQ3_alias1.b
FROM t2 AS SQ3_alias1 STRAIGHT_JOIN t2 AS SQ3_alias2)
LIMIT 100;
set optimizer_switch=@tmp_optimizer_switch;
drop table t1,t2, t3;
set optimizer_switch=@tmp_830993;
set join_buffer_size= @tmp_830993_jbs;
@ -1953,45 +1962,18 @@ DROP TABLE t1, t2, t4, t5;
#
# BUG#861147: Assertion `fixed == 1' failed in Item_func_eq::val_int() with semijoin + materialization + max_join_size
#
CREATE TABLE t1 ( f2 int) ;
CREATE TABLE t2 ( f1 int, f3 int, f4 varchar(3), f5 varchar(35)) ;
INSERT INTO t2 VALUES (4057,9,'USA','Visalia'),(3993,11,'USA','Waco'),
(3948,14,'USA','Warren'),(3813,57,'USA','Washington'),
(4010,11,'USA','Waterbury'),(4017,11,'USA','West Covina'),
(4004,11,'USA','West Valley City'),(4033,10,'USA','Westminster'),
(3842,34,'USA','Wichita'),(4018,10,'USA','Wichita Falls'),
(3899,19,'USA','Winston-Salem'),(3914,17,'USA','Worcester'),
(3888,20,'USA','Yonkers');
CREATE TABLE t3 ( f3 int, f4 varchar(3)) ;
INSERT INTO t3 VALUES (86,'USA');
CREATE TABLE t4 ( f3 int, f4 varchar(3), f5 varchar(52)) ;
INSERT INTO t4 VALUES (0,'RUS','Belorussian'),(0,'USA','Portuguese');
CREATE TABLE t5 ( f2 int) ;
CREATE TABLE t6 ( f4 varchar(3));
INSERT INTO t6 VALUES ('RUS'),('USA');
create table t1 (a int);
insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
set @tmp_mjs_861147= @@max_join_size;
SET max_join_size=10;
set @tmp_os_861147= @@optimizer_switch;
set @@optimizer_switch='semijoin=on,materialization=on';
SELECT *
FROM t1
WHERE ( 1 , 3 ) IN (
SELECT t2.f1 , MAX( t3.f3 )
FROM t2
JOIN t3
WHERE t3.f4 IN (
SELECT t4.f5
FROM t4
STRAIGHT_JOIN t5
WHERE t4.f4 < t2.f5
)
) AND ( 'p' , 'k' ) IN (
SELECT f4 , f4 FROM t6
);
explain
select * from t1 where a in (select max(A.a + B.a + C.a) from t1 A, t1 B, t1 C);
ERROR 42000: The SELECT would examine more than MAX_JOIN_SIZE rows; check your WHERE and use SET SQL_BIG_SELECTS=1 or SET MAX_JOIN_SIZE=# if the SELECT is okay
set max_join_size= @tmp_mjs_861147;
set optimizer_switch= @tmp_os_861147;
DROP TABLE t1,t2,t3,t4,t5,t6;
drop table t1;
#
# BUG#877288: Wrong result with semijoin + materialization + multipart key
#
@ -2008,8 +1990,8 @@ SELECT * FROM t1 WHERE (a) IN (SELECT a FROM t2 JOIN t3 ON b = a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 9
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
2 SUBQUERY t3 ALL NULL NULL NULL NULL 13 Using where
2 SUBQUERY t2 ref b b 4 test.t3.a 1 Using index
2 MATERIALIZED t3 ALL NULL NULL NULL NULL 13 Using where
2 MATERIALIZED t2 ref b b 4 test.t3.a 1 Using index
SELECT * FROM t1 WHERE (a) IN (SELECT a FROM t2 JOIN t3 ON b = a);
a
19
@ -2061,8 +2043,8 @@ set optimizer_switch='semijoin_with_cache=on';
explain
select * from t1 where t1.a in (select t2.a from t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Start temporary
1 PRIMARY t2 ALL NULL NULL NULL NULL 6 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t1 ALL NULL NULL NULL NULL 4
1 PRIMARY t2 ALL NULL NULL NULL NULL 6 Using where; Start temporary; End temporary; Using join buffer (flat, BNL join)
select * from t1 where t1.a in (select t2.a from t2);
a
1
@ -2071,8 +2053,8 @@ set optimizer_switch='semijoin_with_cache=off';
explain
select * from t1 where t1.a in (select t2.a from t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Start temporary
1 PRIMARY t2 ALL NULL NULL NULL NULL 6 Using where; End temporary
1 PRIMARY t1 ALL NULL NULL NULL NULL 4
1 PRIMARY t2 ALL NULL NULL NULL NULL 6 Using where; Start temporary; End temporary
select * from t1 where t1.a in (select t2.a from t2);
a
1
@ -2112,6 +2094,105 @@ a
5
set optimizer_switch= @tmp_otimizer_switch;
DROP TABLE t1,t2,t3;
#
# Bug #901312: materialized semijoin + right join
#
CREATE TABLE t1 (a int);
INSERT INTO t1 VALUES (4), (1);
CREATE TABLE t2 (b int);
INSERT INTO t2 VALUES (4), (1);
CREATE TABLE t3 (c int);
INSERT INTO t3 VALUES (4), (1);
set @tmp_otimizer_switch= @@optimizer_switch;
SET SESSION optimizer_switch='semijoin=on,materialization=on';
EXPLAIN
SELECT * FROM t1 RIGHT JOIN t2 ON b = a WHERE t2.b IN (SELECT c FROM t3);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 ALL NULL NULL NULL NULL 2
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join)
2 MATERIALIZED t3 ALL NULL NULL NULL NULL 2
SELECT * FROM t1 RIGHT JOIN t2 ON b = a WHERE t2.b IN (SELECT c FROM t3);
a b
4 4
1 1
set optimizer_switch= @tmp_otimizer_switch;
DROP TABLE t1,t2,t3;
#
# Bug #901709: assertion failure with record count == 0
#
CREATE TABLE t1 (a int, KEY (a));
INSERT INTO t1 VALUES (4), (6);
CREATE TABLE t2 (a int, KEY (a));
INSERT INTO t2 VALUES (4), (6);
CREATE TABLE t3 (b int);
INSERT INTO t3 VALUES (4);
CREATE TABLE t4 (c int);
SET @tmp_optimizer_switch=@@optimizer_switch;
SET @@optimizer_switch='semijoin=on';
SET @@optimizer_switch='materialization=on';
SET @@optimizer_switch='firstmatch=on';
SET optimizer_switch='semijoin_with_cache=on';
SET optimizer_prune_level=0;
EXPLAIN
SELECT * FROM t1, t2
WHERE t1.a = t2.a AND t2.a IN (SELECT b FROM t3 STRAIGHT_JOIN t4);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t3 system NULL NULL NULL NULL 1
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 1
1 PRIMARY t1 ref a a 5 const 1 Using index
1 PRIMARY t2 ref a a 5 test.t3.b 1 Using index
2 MATERIALIZED t4 ALL NULL NULL NULL NULL 0
SELECT * FROM t1, t2
WHERE t1.a = t2.a AND t2.a IN (SELECT b FROM t3 STRAIGHT_JOIN t4);
a a
SET optimizer_prune_level=DEFAULT;
SET optimizer_switch=@tmp_optimizer_switch;
DROP TABLE t1,t2,t3,t4;
#
# BUG#901399: Wrong result (extra row) with semijoin=ON, materialization=OFF, optimizer_prune_level=0
#
set @opl_901399= @@optimizer_prune_level;
set @os_091399= @@optimizer_switch;
SET optimizer_prune_level=0;
SET optimizer_switch = 'materialization=off';
CREATE TABLE t1 ( c INT ) ENGINE=MyISAM;
INSERT INTO t1 VALUES
(0),(1),(2),(3),(4),(5),
(6),(7),(8),(9),(10),(11),(12);
CREATE TABLE t2 ( a INT, b INT, KEY(a)) ENGINE=MyISAM;
INSERT INTO t2 VALUES (3,20),(2,21),(3,22);
SELECT *
FROM t1 AS alias1, t1 AS alias2
WHERE ( alias1.c, alias2.c )
IN (
SELECT alias3.a, alias3.a
FROM t2 AS alias3, t2 alias4
WHERE alias3.b = alias4.b
);
c c
2 2
3 3
set optimizer_prune_level= @opl_901399;
set optimizer_switch= @os_091399;
DROP TABLE t1,t2;
#
# BUG#912510: Crash in do_copy_not_null with semijoin=ON, firstmatch=ON, aggregate ...
#
CREATE TABLE t1 ( a VARCHAR(1) NOT NULL );
INSERT INTO t1 VALUES ('k'),('l');
CREATE TABLE t2 ( b VARCHAR(1) NOT NULL, KEY(b) );
INSERT INTO t2 VALUES ('k'),('l');
CREATE TABLE t3 ( c VARCHAR(1) NOT NULL, KEY(c) );
INSERT INTO t3 VALUES ('m'),('n');
SELECT a, COUNT(*) FROM t1
WHERE a IN (
SELECT b FROM t2 force index(b), t3 force index(c)
WHERE c = b AND b = a
);
a COUNT(*)
NULL 0
DROP TABLE t1, t2, t3;
set optimizer_switch=@subselect_sj_tmp;
#
# BUG#49129: Wrong result with IN-subquery with join_cache_level=6 and firstmatch=off
@ -2133,8 +2214,8 @@ explain
SELECT * FROM t0 WHERE t0.a IN
(SELECT t1.a FROM t1, t2 WHERE t2.a=t0.a AND t1.b=t2.b);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t0 ALL NULL NULL NULL NULL 5 Using where; Start temporary
1 PRIMARY t1 ref a a 5 test.t0.a 1 Using join buffer (flat, BKA join); Key-ordered Rowid-ordered scan
1 PRIMARY t0 ALL NULL NULL NULL NULL 5 Using where
1 PRIMARY t1 ref a a 5 test.t0.a 1 Start temporary; Using join buffer (flat, BKA join); Key-ordered Rowid-ordered scan
1 PRIMARY t2 eq_ref PRIMARY PRIMARY 4 test.t0.a 1 Using where; End temporary; Using join buffer (incremental, BKA join); Key-ordered Rowid-ordered scan
SELECT * FROM t0 WHERE t0.a IN
(SELECT t1.a FROM t1, t2 WHERE t2.a=t0.a AND t1.b=t2.b);
@ -2166,9 +2247,9 @@ EXPLAIN
SELECT * FROM t1, t2
WHERE t2.a IN (SELECT b FROM t3 WHERE t3.d <= t1.a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Start temporary
1 PRIMARY t3 ALL d NULL NULL NULL 5 Range checked for each record (index map: 0x2)
1 PRIMARY t2 hash_ALL PRIMARY #hash#PRIMARY 4 test.t3.b 4 End temporary; Using join buffer (flat, BNLH join)
1 PRIMARY t1 ALL NULL NULL NULL NULL 2
1 PRIMARY t2 ALL PRIMARY NULL NULL NULL 4 Using join buffer (flat, BNL join)
1 PRIMARY t3 ALL d NULL NULL NULL 5 Range checked for each record (index map: 0x2); FirstMatch(t2)
SELECT * FROM t1, t2
WHERE t2.a IN (SELECT b FROM t3 WHERE t3.d <= t1.a);
a a b
@ -2181,9 +2262,9 @@ EXPLAIN
SELECT * FROM t1, t2
WHERE t2.a IN (SELECT b FROM t3 WHERE t3.d <= t1.a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Start temporary
1 PRIMARY t3 ALL d NULL NULL NULL 5 Range checked for each record (index map: 0x2)
1 PRIMARY t2 eq_ref PRIMARY PRIMARY 4 test.t3.b 1 End temporary; Using join buffer (flat, BKA join); Key-ordered Rowid-ordered scan
1 PRIMARY t1 ALL NULL NULL NULL NULL 2
1 PRIMARY t2 ALL PRIMARY NULL NULL NULL 4 Using join buffer (flat, BNL join)
1 PRIMARY t3 ALL d NULL NULL NULL 5 Range checked for each record (index map: 0x2); FirstMatch(t2)
SELECT * FROM t1, t2
WHERE t2.a IN (SELECT b FROM t3 WHERE t3.d <= t1.a);
a a b
@ -2197,5 +2278,7 @@ DROP TABLE t1,t2,t3;
set join_cache_level=default;
show variables like 'join_cache_level';
Variable_name Value
join_cache_level 1
join_cache_level 2
set @@optimizer_switch=@save_optimizer_switch_jcl6;
set @optimizer_switch_for_subselect_sj_test=NULL;
set @join_cache_level_subselect_sj_test=NULL;

337
mysql-test/r/subselect_sj_mat.result
View File

@ -2,6 +2,8 @@ set @subselect_sj_mat_tmp= @@optimizer_switch;
set optimizer_switch=ifnull(@subselect_mat_test_optimizer_switch_value, 'semijoin=on,firstmatch=on,loosescan=on,semijoin_with_cache=on');
set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
set @optimizer_switch_local_default= @@optimizer_switch;
set @save_join_cache_level=@@join_cache_level;
set join_cache_level=1;
drop table if exists t1, t2, t3, t4, t5, t1i, t2i, t3i;
drop table if exists columns;
drop table if exists t1_16, t2_16, t3_16;
@ -46,7 +48,7 @@ select * from t1 where a1 in (select b1 from t2 where b1 > '0');
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 9 func 1 100.00
2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 Using where
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`b1` > '0'))
select * from t1 where a1 in (select b1 from t2 where b1 > '0');
@ -56,11 +58,11 @@ a1 a2
explain extended
select * from t1 where a1 in (select b1 from t2 where b1 > '0' group by b1);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 9 test.t1.a1 1 100.00
2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 Using where; Using temporary
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 9 func 1 100.00
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from <materialize> (select `test`.`t2`.`b1` from `test`.`t2` where (`test`.`t2`.`b1` > '0') group by `test`.`t2`.`b1`) join `test`.`t1` where (`<subquery2>`.`b1` = `test`.`t1`.`a1`)
Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`b1` > '0'))
select * from t1 where a1 in (select b1 from t2 where b1 > '0' group by b1);
a1 a2
1 - 01 2 - 01
@ -68,11 +70,11 @@ a1 a2
explain extended
select * from t1 where (a1, a2) in (select b1, b2 from t2 where b1 > '0' group by b1, b2);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 18 test.t1.a1,test.t1.a2 1 100.00
2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 Using where; Using temporary
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 18 func,func 1 100.00
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from <materialize> (select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` where (`test`.`t2`.`b1` > '0') group by `test`.`t2`.`b1`,`test`.`t2`.`b2`) join `test`.`t1` where ((`<subquery2>`.`b2` = `test`.`t1`.`a2`) and (`<subquery2>`.`b1` = `test`.`t1`.`a1`))
Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`b1` > '0'))
select * from t1 where (a1, a2) in (select b1, b2 from t2 where b1 > '0' group by b1, b2);
a1 a2
1 - 01 2 - 01
@ -82,7 +84,7 @@ select * from t1 where (a1, a2) in (select b1, min(b2) from t2 where b1 > '0' gr
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 18 test.t1.a1,test.t1.a2 1 100.00
2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 Using where; Using temporary
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 100.00 Using where; Using temporary
Warnings:
Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from <materialize> (select `test`.`t2`.`b1`,min(`test`.`t2`.`b2`) from `test`.`t2` where (`test`.`t2`.`b1` > '0') group by `test`.`t2`.`b1`) join `test`.`t1` where ((`<subquery2>`.`min(b2)` = `test`.`t1`.`a2`) and (`<subquery2>`.`b1` = `test`.`t1`.`a1`))
select * from t1 where (a1, a2) in (select b1, min(b2) from t2 where b1 > '0' group by b1);
@ -101,14 +103,14 @@ a1 a2
1 - 01 2 - 01
1 - 02 2 - 02
explain extended
select * from t1i where a1 in (select b1 from t2i where b1 > '0' group by b1);
select * from t1i where a1 in (select max(b1) from t2i where b1 > '0' group by b1);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY <subquery2> ALL distinct_key # NULL # 3 100.00 #
1 PRIMARY t1i ref it1i1,it1i3 # 9 # 1 100.00 #
2 SUBQUERY t2i range it2i1,it2i3 # 9 # 3 100.00 #
1 PRIMARY t1i index it1i1,it1i3 # 18 # 3 100.00 #
1 PRIMARY <subquery2> eq_ref distinct_key # 9 # 1 100.00 #
2 MATERIALIZED t2i index it2i1,it2i3 # 9 # 5 100.00 #
Warnings:
Note 1003 select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from <materialize> (select `test`.`t2i`.`b1` from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') group by `test`.`t2i`.`b1`) join `test`.`t1i` where (`test`.`t1i`.`a1` = `<subquery2>`.`b1`)
select * from t1i where a1 in (select b1 from t2i where b1 > '0' group by b1);
Note 1003 select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from <materialize> (select max(`test`.`t2i`.`b1`) from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') group by `test`.`t2i`.`b1`) join `test`.`t1i` where (`<subquery2>`.`max(b1)` = `test`.`t1i`.`a1`)
select * from t1i where a1 in (select max(b1) from t2i where b1 > '0' group by b1);
a1 a2
1 - 01 2 - 01
1 - 02 2 - 02
@ -124,14 +126,14 @@ a1 a2
1 - 01 2 - 01
1 - 02 2 - 02
explain extended
select * from t1i where (a1, a2) in (select b1, b2 from t2i where b1 > '0' group by b1, b2);
select * from t1i where (a1, a2) in (select b1, max(b2) from t2i where b1 > '0' group by b1);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1i index it1i1,it1i2,it1i3 # # # 3 100.00 #
1 PRIMARY <subquery2> eq_ref distinct_key # # # 1 100.00 #
2 SUBQUERY t2i range it2i1,it2i3 # # # 3 100.00 #
2 MATERIALIZED t2i range it2i1,it2i3 # # # 3 100.00 #
Warnings:
Note 1003 select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') group by `test`.`t2i`.`b1`,`test`.`t2i`.`b2`) join `test`.`t1i` where ((`<subquery2>`.`b2` = `test`.`t1i`.`a2`) and (`<subquery2>`.`b1` = `test`.`t1i`.`a1`))
select * from t1i where (a1, a2) in (select b1, b2 from t2i where b1 > '0' group by b1, b2);
Note 1003 select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from <materialize> (select `test`.`t2i`.`b1`,max(`test`.`t2i`.`b2`) from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') group by `test`.`t2i`.`b1`) join `test`.`t1i` where ((`<subquery2>`.`max(b2)` = `test`.`t1i`.`a2`) and (`<subquery2>`.`b1` = `test`.`t1i`.`a1`))
select * from t1i where (a1, a2) in (select b1, max(b2) from t2i where b1 > '0' group by b1);
a1 a2
1 - 01 2 - 01
1 - 02 2 - 02
@ -140,7 +142,7 @@ select * from t1i where (a1, a2) in (select b1, min(b2) from t2i where b1 > '0'
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1i index it1i1,it1i2,it1i3 # # # 3 100.00 #
1 PRIMARY <subquery2> eq_ref distinct_key # # # 1 100.00 #
2 SUBQUERY t2i range it2i1,it2i3 # # # 3 100.00 #
2 MATERIALIZED t2i range it2i1,it2i3 # # # 3 100.00 #
Warnings:
Note 1003 select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from <materialize> (select `test`.`t2i`.`b1`,min(`test`.`t2i`.`b2`) from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') group by `test`.`t2i`.`b1`) join `test`.`t1i` where ((`<subquery2>`.`min(b2)` = `test`.`t1i`.`a2`) and (`<subquery2>`.`b1` = `test`.`t1i`.`a1`))
select * from t1i where (a1, a2) in (select b1, min(b2) from t2i where b1 > '0' group by b1);
@ -152,7 +154,7 @@ select * from t1 where (a1, a2) in (select b1, max(b2) from t2i group by b1);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 18 test.t1.a1,test.t1.a2 1 100.00
2 SUBQUERY t2i range NULL it2i3 9 NULL 3 100.00 Using index for group-by
2 MATERIALIZED t2i range NULL it2i3 9 NULL 3 100.00 Using index for group-by
Warnings:
Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from <materialize> (select `test`.`t2i`.`b1`,max(`test`.`t2i`.`b2`) from `test`.`t2i` group by `test`.`t2i`.`b1`) join `test`.`t1` where ((`<subquery2>`.`max(b2)` = `test`.`t1`.`a2`) and (`<subquery2>`.`b1` = `test`.`t1`.`a1`))
select * from t1 where (a1, a2) in (select b1, max(b2) from t2i group by b1);
@ -164,12 +166,12 @@ execute st1;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 18 test.t1.a1,test.t1.a2 1
2 SUBQUERY t2i range NULL it2i3 9 NULL 3 Using index for group-by
2 MATERIALIZED t2i range NULL it2i3 9 NULL 3 Using index for group-by
execute st1;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 18 test.t1.a1,test.t1.a2 1
2 SUBQUERY t2i range NULL it2i3 9 NULL 3 Using index for group-by
2 MATERIALIZED t2i range NULL it2i3 9 NULL 3 Using index for group-by
prepare st2 from "select * from t1 where (a1, a2) in (select b1, max(b2) from t2i group by b1)";
execute st2;
a1 a2
@ -184,7 +186,7 @@ select * from t1 where (a1, a2) in (select b1, min(b2) from t2i where b1 > '0' g
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 18 test.t1.a1,test.t1.a2 1 100.00
2 SUBQUERY t2i range it2i1,it2i3 it2i3 18 NULL 3 100.00 Using where; Using index for group-by
2 MATERIALIZED t2i range it2i1,it2i3 it2i3 18 NULL 3 100.00 Using where; Using index for group-by
Warnings:
Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from <materialize> (select `test`.`t2i`.`b1`,min(`test`.`t2i`.`b2`) from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') group by `test`.`t2i`.`b1`) join `test`.`t1` where ((`<subquery2>`.`min(b2)` = `test`.`t1`.`a2`) and (`<subquery2>`.`b1` = `test`.`t1`.`a1`))
select * from t1 where (a1, a2) in (select b1, min(b2) from t2i where b1 > '0' group by b1);
@ -232,7 +234,7 @@ select * from t1 where (a1, a2) in (select b1, b2 from t2 order by b1, b2);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 18 test.t1.a1,test.t1.a2 1 100.00
2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 100.00
Warnings:
Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from <materialize> (select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` order by `test`.`t2`.`b1`,`test`.`t2`.`b2`) join `test`.`t1` where ((`<subquery2>`.`b2` = `test`.`t1`.`a2`) and (`<subquery2>`.`b1` = `test`.`t1`.`a1`))
select * from t1 where (a1, a2) in (select b1, b2 from t2 order by b1, b2);
@ -244,7 +246,7 @@ select * from t1i where (a1, a2) in (select b1, b2 from t2i order by b1, b2);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1i index it1i1,it1i2,it1i3 it1i3 18 NULL 3 100.00 Using where; Using index
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 18 test.t1i.a1,test.t1i.a2 1 100.00
2 SUBQUERY t2i index NULL it2i3 18 NULL 5 100.00 Using index
2 MATERIALIZED t2i index NULL it2i3 18 NULL 5 100.00 Using index
Warnings:
Note 1003 select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` order by `test`.`t2i`.`b1`,`test`.`t2i`.`b2`) join `test`.`t1i` where ((`<subquery2>`.`b2` = `test`.`t1i`.`a2`) and (`<subquery2>`.`b1` = `test`.`t1i`.`a1`))
select * from t1i where (a1, a2) in (select b1, b2 from t2i order by b1, b2);
@ -297,11 +299,11 @@ where (a1, a2) in (select b1, b2 from t2 where b1 > '0') and
where (c1, c2) in (select b1, b2 from t2i where b2 > '0'));
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 18 func,func 1 100.00
1 PRIMARY <subquery3> eq_ref distinct_key distinct_key 18 func,func 1 100.00
2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 Using where
3 SUBQUERY t3 ALL NULL NULL NULL NULL 4 100.00 Using where
3 SUBQUERY t2i index it2i1,it2i2,it2i3 it2i3 18 NULL 5 80.00 Using where; Using index; Using join buffer (flat, BNL join)
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 18 func,func 1 100.00
3 MATERIALIZED t3 ALL NULL NULL NULL NULL 4 100.00 Using where
3 MATERIALIZED t2i index it2i1,it2i2,it2i3 it2i3 18 NULL 5 80.00 Using where; Using index; Using join buffer (flat, BNL join)
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` semi join (`test`.`t2`) semi join (`test`.`t2i` join `test`.`t3`) where ((`test`.`t2i`.`b2` = `test`.`t3`.`c2`) and (`test`.`t2i`.`b1` = `test`.`t3`.`c1`) and (`test`.`t2`.`b1` > '0') and (`test`.`t3`.`c2` > '0'))
select * from t1
@ -317,14 +319,12 @@ where (a1, a2) in (select b1, b2 from t2i where b1 > '0') and
(a1, a2) in (select c1, c2 from t3i
where (c1, c2) in (select b1, b2 from t2i where b2 > '0'));
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1i index it1i1,it1i2,it1i3 # # # 3 100.00 #
1 PRIMARY <subquery2> eq_ref distinct_key # # # 1 100.00 #
1 PRIMARY <subquery3> eq_ref distinct_key # # # 1 100.00 #
2 SUBQUERY t2i index it2i1,it2i2,it2i3 # # # 5 100.00 #
3 SUBQUERY t2i index it2i1,it2i2,it2i3 # # # 5 100.00 #
3 SUBQUERY t3i index it3i1,it3i2,it3i3 # # # 4 75.00 #
1 PRIMARY t2i index it2i1,it2i2,it2i3 # # # 5 40.00 #
1 PRIMARY t1i ref it1i1,it1i2,it1i3 # # # 1 100.00 #
1 PRIMARY t3i ref it3i1,it3i2,it3i3 # # # 1 100.00 #
1 PRIMARY t2i ref it2i1,it2i2,it2i3 # # # 2 100.00 #
Warnings:
Note 1003 select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` semi join (`test`.`t2i`) semi join (`test`.`t2i` join `test`.`t3i`) where ((`test`.`t3i`.`c2` = `test`.`t2i`.`b2`) and (`test`.`t3i`.`c1` = `test`.`t2i`.`b1`) and (`test`.`t2i`.`b1` > '0') and (`test`.`t2i`.`b2` > '0'))
Note 1003 select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` semi join (`test`.`t2i`) semi join (`test`.`t2i` join `test`.`t3i`) where ((`test`.`t1i`.`a2` = `test`.`t2i`.`b2`) and (`test`.`t3i`.`c2` = `test`.`t2i`.`b2`) and (`test`.`t2i`.`b2` = `test`.`t2i`.`b2`) and (`test`.`t1i`.`a1` = `test`.`t2i`.`b1`) and (`test`.`t3i`.`c1` = `test`.`t2i`.`b1`) and (`test`.`t2i`.`b1` = `test`.`t2i`.`b1`) and (`test`.`t2i`.`b1` > '0') and (`test`.`t2i`.`b2` > '0'))
select * from t1i
where (a1, a2) in (select b1, b2 from t2i where b1 > '0') and
(a1, a2) in (select c1, c2 from t3i
@ -341,13 +341,13 @@ b2 in (select c2 from t3 where c2 LIKE '%03')) and
where (c1, c2) in (select b1, b2 from t2i where b2 > '0'));
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 18 func,func 1 100.00
1 PRIMARY <subquery5> eq_ref distinct_key distinct_key 18 func,func 1 100.00
2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 Using where
5 SUBQUERY t3 ALL NULL NULL NULL NULL 4 100.00 Using where
5 SUBQUERY t2i index it2i1,it2i2,it2i3 it2i3 18 NULL 5 80.00 Using where; Using index; Using join buffer (flat, BNL join)
4 SUBQUERY t3 ALL NULL NULL NULL NULL 4 100.00 Using where
3 SUBQUERY t3 ALL NULL NULL NULL NULL 4 100.00 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 18 func,func 1 100.00
5 MATERIALIZED t3 ALL NULL NULL NULL NULL 4 100.00 Using where
5 MATERIALIZED t2i index it2i1,it2i2,it2i3 it2i3 18 NULL 5 80.00 Using where; Using index; Using join buffer (flat, BNL join)
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 100.00 Using where
4 MATERIALIZED t3 ALL NULL NULL NULL NULL 4 100.00 Using where
3 MATERIALIZED t3 ALL NULL NULL NULL NULL 4 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` semi join (`test`.`t2`) semi join (`test`.`t2i` join `test`.`t3`) where ((`test`.`t2i`.`b2` = `test`.`t3`.`c2`) and (`test`.`t2i`.`b1` = `test`.`t3`.`c1`) and (<expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3`.`c2` from `test`.`t3` where (`test`.`t3`.`c2` like '%02') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery3>`.`c2`)))))) or <expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3`.`c2` from `test`.`t3` where (`test`.`t3`.`c2` like '%03') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery4>`.`c2`))))))) and (`test`.`t3`.`c2` > '0'))
select * from t1
@ -366,16 +366,16 @@ b2 in (select c2 from t3 t3b where c2 LIKE '%03')) and
(a1, a2) in (select c1, c2 from t3 t3c
where (c1, c2) in (select b1, b2 from t2i where b2 > '0'));
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Start temporary
1 PRIMARY t2 ALL NULL NULL NULL NULL 5 100.00 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00
1 PRIMARY <subquery5> eq_ref distinct_key distinct_key 18 func,func 1 100.00
5 SUBQUERY t3c ALL NULL NULL NULL NULL 4 100.00 Using where
5 SUBQUERY t2i index it2i1,it2i2,it2i3 it2i3 18 NULL 5 80.00 Using where; Using index; Using join buffer (flat, BNL join)
4 SUBQUERY t3b ALL NULL NULL NULL NULL 4 100.00 Using where
1 PRIMARY t2 ALL NULL NULL NULL NULL 5 100.00 Using where; Start temporary; End temporary; Using join buffer (flat, BNL join)
5 MATERIALIZED t3c ALL NULL NULL NULL NULL 4 100.00 Using where
5 MATERIALIZED t2i index it2i1,it2i2,it2i3 it2i3 18 NULL 5 80.00 Using where; Using index; Using join buffer (flat, BNL join)
4 MATERIALIZED t3b ALL NULL NULL NULL NULL 4 100.00 Using where
3 DEPENDENT SUBQUERY t3a ALL NULL NULL NULL NULL 4 100.00 Using where
Warnings:
Note 1276 Field or reference 'test.t1.a1' of SELECT #3 was resolved in SELECT #1
Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` semi join (`test`.`t2`) semi join (`test`.`t2i` join `test`.`t3` `t3c`) where ((`test`.`t2`.`b2` = `test`.`t1`.`a2`) and (`test`.`t2i`.`b2` = `test`.`t3c`.`c2`) and (`test`.`t2`.`b1` = `test`.`t1`.`a1`) and (`test`.`t2i`.`b1` = `test`.`t3c`.`c1`) and (<expr_cache><`test`.`t2`.`b2`,`test`.`t1`.`a1`>(<in_optimizer>(`test`.`t2`.`b2`,<exists>(select `test`.`t3a`.`c2` from `test`.`t3` `t3a` where ((`test`.`t3a`.`c1` = `test`.`t1`.`a1`) and (<cache>(`test`.`t2`.`b2`) = `test`.`t3a`.`c2`))))) or <expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3b`.`c2` from `test`.`t3` `t3b` where (`test`.`t3b`.`c2` like '%03') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery4>`.`c2`))))))) and (`test`.`t3c`.`c2` > '0'))
Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` semi join (`test`.`t2`) semi join (`test`.`t2i` join `test`.`t3` `t3c`) where ((`test`.`t2i`.`b2` = `test`.`t3c`.`c2`) and (`test`.`t2`.`b2` = `test`.`t1`.`a2`) and (`test`.`t2i`.`b1` = `test`.`t3c`.`c1`) and (`test`.`t2`.`b1` = `test`.`t1`.`a1`) and (<expr_cache><`test`.`t2`.`b2`,`test`.`t1`.`a1`>(<in_optimizer>(`test`.`t2`.`b2`,<exists>(select `test`.`t3a`.`c2` from `test`.`t3` `t3a` where ((`test`.`t3a`.`c1` = `test`.`t1`.`a1`) and (<cache>(`test`.`t2`.`b2`) = `test`.`t3a`.`c2`))))) or <expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3b`.`c2` from `test`.`t3` `t3b` where (`test`.`t3b`.`c2` like '%03') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery4>`.`c2`))))))) and (`test`.`t3c`.`c2` > '0'))
select * from t1
where (a1, a2) in (select b1, b2 from t2
where b2 in (select c2 from t3 t3a where c1 = a1) or
@ -399,22 +399,21 @@ where (a1, a2) in (select b1, b2 from t2i where b1 > '0') and
(a1, a2) in (select c1, c2 from t3i
where (c1, c2) in (select b1, b2 from t2i where b2 > '0')));
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY <subquery2> ALL distinct_key # # # 5 0.00 #
1 PRIMARY t3 ALL NULL # # # 4 100.00 #
1 PRIMARY t1 ALL NULL # # # 3 100.00 #
1 PRIMARY t2i ref it2i1,it2i2,it2i3 # # # 2 100.00 #
2 SUBQUERY t2 ALL NULL # # # 5 100.00 #
4 SUBQUERY t3 ALL NULL # # # 4 100.00 #
3 SUBQUERY t3 ALL NULL # # # 4 100.00 #
7 UNION t1i index it1i1,it1i2,it1i3 # # # 3 100.00 #
7 UNION <subquery8> eq_ref distinct_key # # # 1 100.00 #
7 UNION <subquery9> eq_ref distinct_key # # # 1 100.00 #
8 SUBQUERY t2i index it2i1,it2i2,it2i3 # # # 5 100.00 #
9 SUBQUERY t2i index it2i1,it2i2,it2i3 # # # 5 100.00 #
9 SUBQUERY t3i index it3i1,it3i2,it3i3 # # # 4 75.00 #
1 PRIMARY <subquery5> eq_ref distinct_key # # # 1 100.00 #
1 PRIMARY <subquery2> eq_ref distinct_key # # # 1 100.00 #
5 MATERIALIZED t3 ALL NULL # # # 4 100.00 #
5 MATERIALIZED t2i index it2i1,it2i2,it2i3 # # # 5 80.00 #
2 MATERIALIZED t2 ALL NULL # # # 5 100.00 #
4 MATERIALIZED t3 ALL NULL # # # 4 100.00 #
3 MATERIALIZED t3 ALL NULL # # # 4 100.00 #
7 UNION t2i index it2i1,it2i2,it2i3 # # # 5 40.00 #
7 UNION t1i ref it1i1,it1i2,it1i3 # # # 1 100.00 #
7 UNION t3i ref it3i1,it3i2,it3i3 # # # 1 100.00 #
7 UNION t2i ref it2i1,it2i2,it2i3 # # # 2 100.00 #
NULL UNION RESULT <union1,7> ALL NULL # # # NULL NULL #
Warnings:
Note 1003 (select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from <materialize> (select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` where (<expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3`.`c2` from `test`.`t3` where (`test`.`t3`.`c2` like '%02') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery3>`.`c2`)))))) or <expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3`.`c2` from `test`.`t3` where (`test`.`t3`.`c2` like '%03') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery4>`.`c2`))))))) group by `test`.`t2`.`b1`,`test`.`t2`.`b2`) semi join (`test`.`t2i` join `test`.`t3`) join `test`.`t1` where ((`test`.`t3`.`c2` = `<subquery2>`.`b2`) and (`test`.`t1`.`a2` = `<subquery2>`.`b2`) and (`test`.`t2i`.`b2` = `<subquery2>`.`b2`) and (`test`.`t3`.`c1` = `<subquery2>`.`b1`) and (`test`.`t1`.`a1` = `<subquery2>`.`b1`) and (`test`.`t2i`.`b1` = `<subquery2>`.`b1`) and (`<subquery2>`.`b2` > '0'))) union (select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` semi join (`test`.`t2i`) semi join (`test`.`t2i` join `test`.`t3i`) where ((`test`.`t3i`.`c2` = `test`.`t2i`.`b2`) and (`test`.`t3i`.`c1` = `test`.`t2i`.`b1`) and (`test`.`t2i`.`b1` > '0') and (`test`.`t2i`.`b2` > '0')))
Note 1003 (select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` semi join (`test`.`t2`) semi join (`test`.`t2i` join `test`.`t3`) where ((`test`.`t2i`.`b2` = `test`.`t3`.`c2`) and (`test`.`t2i`.`b1` = `test`.`t3`.`c1`) and (<expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3`.`c2` from `test`.`t3` where (`test`.`t3`.`c2` like '%02') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery3>`.`c2`)))))) or <expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3`.`c2` from `test`.`t3` where (`test`.`t3`.`c2` like '%03') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery4>`.`c2`))))))) and (`test`.`t3`.`c2` > '0'))) union (select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` semi join (`test`.`t2i`) semi join (`test`.`t2i` join `test`.`t3i`) where ((`test`.`t1i`.`a2` = `test`.`t2i`.`b2`) and (`test`.`t3i`.`c2` = `test`.`t2i`.`b2`) and (`test`.`t2i`.`b2` = `test`.`t2i`.`b2`) and (`test`.`t1i`.`a1` = `test`.`t2i`.`b1`) and (`test`.`t3i`.`c1` = `test`.`t2i`.`b1`) and (`test`.`t2i`.`b1` = `test`.`t2i`.`b1`) and (`test`.`t2i`.`b1` > '0') and (`test`.`t2i`.`b2` > '0')))
(select * from t1
where (a1, a2) in (select b1, b2 from t2
where b2 in (select c2 from t3 where c2 LIKE '%02') or
@ -438,8 +437,8 @@ where (c1, c2) in (select b1, b2 from t2i where b2 > '0'));
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY <subquery4> eq_ref distinct_key distinct_key 18 func,func 1 100.00
4 SUBQUERY t3 ALL NULL NULL NULL NULL 4 100.00 Using where
4 SUBQUERY t2i index it2i1,it2i2,it2i3 it2i3 18 NULL 5 80.00 Using where; Using index; Using join buffer (flat, BNL join)
4 MATERIALIZED t3 ALL NULL NULL NULL NULL 4 100.00 Using where
4 MATERIALIZED t2i index it2i1,it2i2,it2i3 it2i3 18 NULL 5 80.00 Using where; Using index; Using join buffer (flat, BNL join)
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
3 DEPENDENT UNION t2 ALL NULL NULL NULL NULL 5 100.00 Using where
NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL NULL
@ -462,8 +461,8 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY t3 ALL NULL NULL NULL NULL 4 100.00 Using where; Using join buffer (flat, BNL join)
1 PRIMARY <subquery4> eq_ref distinct_key distinct_key 18 func,func 1 100.00
4 SUBQUERY t3 ALL NULL NULL NULL NULL 4 100.00 Using where
4 SUBQUERY t2i index it2i1,it2i2,it2i3 it2i3 18 NULL 5 80.00 Using where; Using index; Using join buffer (flat, BNL join)
4 MATERIALIZED t3 ALL NULL NULL NULL NULL 4 100.00 Using where
4 MATERIALIZED t2i index it2i1,it2i2,it2i3 it2i3 18 NULL 5 80.00 Using where; Using index; Using join buffer (flat, BNL join)
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
3 DEPENDENT UNION t2 ALL NULL NULL NULL NULL 5 100.00 Using where
NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL NULL
@ -505,16 +504,16 @@ b2 in (select c2 from t3 t3b where c2 LIKE '%03')) and
(a1, a2) in (select c1, c2 from t3 t3c
where (c1, c2) in (select b1, b2 from t2i where b2 > '0' or b2 = a2));
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Start temporary
1 PRIMARY t2i ref it2i1,it2i2,it2i3 it2i3 18 test.t1.a1,test.t1.a2 2 100.00 Using index
1 PRIMARY t2 ALL NULL NULL NULL NULL 5 100.00 Using where; Using join buffer (flat, BNL join)
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY t2 ALL NULL NULL NULL NULL 5 100.00 Using where; Start temporary; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t2i ref it2i1,it2i2,it2i3 it2i3 18 test.t1.a1,test.t1.a2 2 100.00 Using index; Start temporary
1 PRIMARY t3c ALL NULL NULL NULL NULL 4 100.00 Using where; End temporary; Using join buffer (flat, BNL join)
4 SUBQUERY t3b ALL NULL NULL NULL NULL 4 100.00 Using where
4 MATERIALIZED t3b ALL NULL NULL NULL NULL 4 100.00 Using where
3 DEPENDENT SUBQUERY t3a ALL NULL NULL NULL NULL 4 100.00 Using where
Warnings:
Note 1276 Field or reference 'test.t1.a1' of SELECT #3 was resolved in SELECT #1
Note 1276 Field or reference 'test.t1.a2' of SELECT #6 was resolved in SELECT #1
Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` semi join (`test`.`t2`) semi join (`test`.`t2i` join `test`.`t3` `t3c`) where ((`test`.`t2i`.`b2` = `test`.`t1`.`a2`) and (`test`.`t2`.`b2` = `test`.`t1`.`a2`) and (`test`.`t3c`.`c2` = `test`.`t1`.`a2`) and (`test`.`t2i`.`b1` = `test`.`t1`.`a1`) and (`test`.`t2`.`b1` = `test`.`t1`.`a1`) and (`test`.`t3c`.`c1` = `test`.`t1`.`a1`) and (<expr_cache><`test`.`t2`.`b2`,`test`.`t1`.`a1`>(<in_optimizer>(`test`.`t2`.`b2`,<exists>(select `test`.`t3a`.`c2` from `test`.`t3` `t3a` where ((`test`.`t3a`.`c1` = `test`.`t1`.`a1`) and (<cache>(`test`.`t2`.`b2`) = `test`.`t3a`.`c2`))))) or <expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3b`.`c2` from `test`.`t3` `t3b` where (`test`.`t3b`.`c2` like '%03') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery4>`.`c2`))))))))
Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` semi join (`test`.`t2`) semi join (`test`.`t2i` join `test`.`t3` `t3c`) where ((`test`.`t2`.`b2` = `test`.`t1`.`a2`) and (`test`.`t2i`.`b2` = `test`.`t1`.`a2`) and (`test`.`t3c`.`c2` = `test`.`t1`.`a2`) and (`test`.`t2`.`b1` = `test`.`t1`.`a1`) and (`test`.`t2i`.`b1` = `test`.`t1`.`a1`) and (`test`.`t3c`.`c1` = `test`.`t1`.`a1`) and (<expr_cache><`test`.`t2`.`b2`,`test`.`t1`.`a1`>(<in_optimizer>(`test`.`t2`.`b2`,<exists>(select `test`.`t3a`.`c2` from `test`.`t3` `t3a` where ((`test`.`t3a`.`c1` = `test`.`t1`.`a1`) and (<cache>(`test`.`t2`.`b2`) = `test`.`t3a`.`c2`))))) or <expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3b`.`c2` from `test`.`t3` `t3b` where (`test`.`t3b`.`c2` like '%03') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery4>`.`c2`))))))))
explain extended
select * from t1 where (a1, a2) in (select '1 - 01', '2 - 01');
id select_type table type possible_keys key key_len ref rows filtered Extra
@ -617,8 +616,8 @@ explain extended select left(a1,7), left(a2,7)
from t1_16
where a1 in (select b1 from t2_16 where b1 > '0');
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1_16 ALL NULL NULL NULL NULL 3 100.00 Using where; Start temporary
1 PRIMARY t2_16 ALL NULL NULL NULL NULL 3 100.00 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t1_16 ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY t2_16 ALL NULL NULL NULL NULL 3 100.00 Using where; Start temporary; End temporary; Using join buffer (flat, BNL join)
Warnings:
Note 1003 select left(`test`.`t1_16`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_16`.`a2`,7) AS `left(a2,7)` from `test`.`t1_16` semi join (`test`.`t2_16`) where ((`test`.`t2_16`.`b1` = `test`.`t1_16`.`a1`) and (`test`.`t1_16`.`a1` > '0'))
select left(a1,7), left(a2,7)
@ -631,8 +630,8 @@ explain extended select left(a1,7), left(a2,7)
from t1_16
where (a1,a2) in (select b1, b2 from t2_16 where b1 > '0');
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1_16 ALL NULL NULL NULL NULL 3 100.00 Using where; Start temporary
1 PRIMARY t2_16 ALL NULL NULL NULL NULL 3 100.00 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t1_16 ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY t2_16 ALL NULL NULL NULL NULL 3 100.00 Using where; Start temporary; End temporary; Using join buffer (flat, BNL join)
Warnings:
Note 1003 select left(`test`.`t1_16`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_16`.`a2`,7) AS `left(a2,7)` from `test`.`t1_16` semi join (`test`.`t2_16`) where ((`test`.`t2_16`.`b2` = `test`.`t1_16`.`a2`) and (`test`.`t2_16`.`b1` = `test`.`t1_16`.`a1`) and (`test`.`t1_16`.`a1` > '0'))
select left(a1,7), left(a2,7)
@ -647,7 +646,7 @@ where a1 in (select substring(b1,1,16) from t2_16 where b1 > '0');
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1_16 ALL NULL NULL NULL NULL 3 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 20 func 1 100.00 Using where
2 SUBQUERY t2_16 ALL NULL NULL NULL NULL 3 100.00 Using where
2 MATERIALIZED t2_16 ALL NULL NULL NULL NULL 3 100.00 Using where
Warnings:
Note 1003 select left(`test`.`t1_16`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_16`.`a2`,7) AS `left(a2,7)` from `test`.`t1_16` semi join (`test`.`t2_16`) where ((`test`.`t2_16`.`b1` > '0') and (`test`.`t1_16`.`a1` = substr(`test`.`t2_16`.`b1`,1,16)))
select left(a1,7), left(a2,7)
@ -677,7 +676,7 @@ where a1 in (select group_concat(b1) from t2_16 group by b2);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1_16 ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 261 test.t1_16.a1 1 100.00 Using where
2 SUBQUERY t2_16 ALL NULL NULL NULL NULL 3 100.00 Using filesort
2 MATERIALIZED t2_16 ALL NULL NULL NULL NULL 3 100.00 Using filesort
Warnings:
Note 1003 select left(`test`.`t1_16`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_16`.`a2`,7) AS `left(a2,7)` from <materialize> (select group_concat(`test`.`t2_16`.`b1` separator ',') from `test`.`t2_16` group by `test`.`t2_16`.`b2`) join `test`.`t1_16` where (`test`.`t1_16`.`a1` = `<subquery2>`.`group_concat(b1)`)
select left(a1,7), left(a2,7)
@ -695,8 +694,8 @@ where (a1, a2) IN
where t2.b2 = substring(t2_16.b2,1,6) and
t2.b1 IN (select c1 from t3 where c2 > '0')));
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Start temporary
1 PRIMARY t1_16 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, BNL join)
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00
1 PRIMARY t1_16 ALL NULL NULL NULL NULL 3 100.00 Using where; Start temporary; Using join buffer (flat, BNL join)
1 PRIMARY t2_16 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, BNL join)
1 PRIMARY t3 ALL NULL NULL NULL NULL 4 100.00 Using where; Using join buffer (flat, BNL join)
1 PRIMARY t2 ALL NULL NULL NULL NULL 5 100.00 Using where; End temporary; Using join buffer (flat, BNL join)
@ -732,8 +731,8 @@ explain extended select left(a1,7), left(a2,7)
from t1_512
where a1 in (select b1 from t2_512 where b1 > '0');
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1_512 ALL NULL NULL NULL NULL 3 100.00 Using where; Start temporary
1 PRIMARY t2_512 ALL NULL NULL NULL NULL 3 100.00 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t1_512 ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY t2_512 ALL NULL NULL NULL NULL 3 100.00 Using where; Start temporary; End temporary; Using join buffer (flat, BNL join)
Warnings:
Note 1003 select left(`test`.`t1_512`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_512`.`a2`,7) AS `left(a2,7)` from `test`.`t1_512` semi join (`test`.`t2_512`) where ((`test`.`t2_512`.`b1` = `test`.`t1_512`.`a1`) and (`test`.`t1_512`.`a1` > '0'))
select left(a1,7), left(a2,7)
@ -746,8 +745,8 @@ explain extended select left(a1,7), left(a2,7)
from t1_512
where (a1,a2) in (select b1, b2 from t2_512 where b1 > '0');
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1_512 ALL NULL NULL NULL NULL 3 100.00 Using where; Start temporary
1 PRIMARY t2_512 ALL NULL NULL NULL NULL 3 100.00 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t1_512 ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY t2_512 ALL NULL NULL NULL NULL 3 100.00 Using where; Start temporary; End temporary; Using join buffer (flat, BNL join)
Warnings:
Note 1003 select left(`test`.`t1_512`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_512`.`a2`,7) AS `left(a2,7)` from `test`.`t1_512` semi join (`test`.`t2_512`) where ((`test`.`t2_512`.`b2` = `test`.`t1_512`.`a2`) and (`test`.`t2_512`.`b1` = `test`.`t1_512`.`a1`) and (`test`.`t1_512`.`a1` > '0'))
select left(a1,7), left(a2,7)
@ -762,7 +761,7 @@ where a1 in (select substring(b1,1,512) from t2_512 where b1 > '0');
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1_512 ALL NULL NULL NULL NULL 3 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 517 func 1 100.00 Using where
2 SUBQUERY t2_512 ALL NULL NULL NULL NULL 3 100.00 Using where
2 MATERIALIZED t2_512 ALL NULL NULL NULL NULL 3 100.00 Using where
Warnings:
Note 1003 select left(`test`.`t1_512`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_512`.`a2`,7) AS `left(a2,7)` from `test`.`t1_512` semi join (`test`.`t2_512`) where ((`test`.`t2_512`.`b1` > '0') and (`test`.`t1_512`.`a1` = substr(`test`.`t2_512`.`b1`,1,512)))
select left(a1,7), left(a2,7)
@ -777,7 +776,7 @@ where a1 in (select group_concat(b1) from t2_512 group by b2);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1_512 ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 261 test.t1_512.a1 1 100.00 Using where
2 SUBQUERY t2_512 ALL NULL NULL NULL NULL 3 100.00 Using filesort
2 MATERIALIZED t2_512 ALL NULL NULL NULL NULL 3 100.00 Using filesort
Warnings:
Note 1003 select left(`test`.`t1_512`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_512`.`a2`,7) AS `left(a2,7)` from <materialize> (select group_concat(`test`.`t2_512`.`b1` separator ',') from `test`.`t2_512` group by `test`.`t2_512`.`b2`) join `test`.`t1_512` where (`test`.`t1_512`.`a1` = `<subquery2>`.`group_concat(b1)`)
select left(a1,7), left(a2,7)
@ -791,7 +790,7 @@ where a1 in (select group_concat(b1) from t2_512 group by b2);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1_512 ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 261 test.t1_512.a1 1 100.00 Using where
2 SUBQUERY t2_512 ALL NULL NULL NULL NULL 3 100.00 Using filesort
2 MATERIALIZED t2_512 ALL NULL NULL NULL NULL 3 100.00 Using filesort
Warnings:
Note 1003 select left(`test`.`t1_512`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_512`.`a2`,7) AS `left(a2,7)` from <materialize> (select group_concat(`test`.`t2_512`.`b1` separator ',') from `test`.`t2_512` group by `test`.`t2_512`.`b2`) join `test`.`t1_512` where (`test`.`t1_512`.`a1` = `<subquery2>`.`group_concat(b1)`)
select left(a1,7), left(a2,7)
@ -828,8 +827,8 @@ explain extended select left(a1,7), left(a2,7)
from t1_1024
where a1 in (select b1 from t2_1024 where b1 > '0');
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1_1024 ALL NULL NULL NULL NULL 3 100.00 Using where; Start temporary
1 PRIMARY t2_1024 ALL NULL NULL NULL NULL 3 100.00 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t1_1024 ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY t2_1024 ALL NULL NULL NULL NULL 3 100.00 Using where; Start temporary; End temporary; Using join buffer (flat, BNL join)
Warnings:
Note 1003 select left(`test`.`t1_1024`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1024`.`a2`,7) AS `left(a2,7)` from `test`.`t1_1024` semi join (`test`.`t2_1024`) where ((`test`.`t2_1024`.`b1` = `test`.`t1_1024`.`a1`) and (`test`.`t1_1024`.`a1` > '0'))
select left(a1,7), left(a2,7)
@ -842,8 +841,8 @@ explain extended select left(a1,7), left(a2,7)
from t1_1024
where (a1,a2) in (select b1, b2 from t2_1024 where b1 > '0');
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1_1024 ALL NULL NULL NULL NULL 3 100.00 Using where; Start temporary
1 PRIMARY t2_1024 ALL NULL NULL NULL NULL 3 100.00 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t1_1024 ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY t2_1024 ALL NULL NULL NULL NULL 3 100.00 Using where; Start temporary; End temporary; Using join buffer (flat, BNL join)
Warnings:
Note 1003 select left(`test`.`t1_1024`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1024`.`a2`,7) AS `left(a2,7)` from `test`.`t1_1024` semi join (`test`.`t2_1024`) where ((`test`.`t2_1024`.`b2` = `test`.`t1_1024`.`a2`) and (`test`.`t2_1024`.`b1` = `test`.`t1_1024`.`a1`) and (`test`.`t1_1024`.`a1` > '0'))
select left(a1,7), left(a2,7)
@ -856,8 +855,8 @@ explain extended select left(a1,7), left(a2,7)
from t1_1024
where a1 in (select substring(b1,1,1024) from t2_1024 where b1 > '0');
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1_1024 ALL NULL NULL NULL NULL 3 100.00 Start temporary
1 PRIMARY t2_1024 ALL NULL NULL NULL NULL 3 100.00 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t1_1024 ALL NULL NULL NULL NULL 3 100.00
1 PRIMARY t2_1024 ALL NULL NULL NULL NULL 3 100.00 Using where; Start temporary; End temporary; Using join buffer (flat, BNL join)
Warnings:
Note 1003 select left(`test`.`t1_1024`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1024`.`a2`,7) AS `left(a2,7)` from `test`.`t1_1024` semi join (`test`.`t2_1024`) where ((`test`.`t2_1024`.`b1` > '0') and (`test`.`t1_1024`.`a1` = substr(`test`.`t2_1024`.`b1`,1,1024)))
select left(a1,7), left(a2,7)
@ -872,7 +871,7 @@ where a1 in (select group_concat(b1) from t2_1024 group by b2);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1_1024 ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 261 test.t1_1024.a1 1 100.00 Using where
2 SUBQUERY t2_1024 ALL NULL NULL NULL NULL 3 100.00 Using filesort
2 MATERIALIZED t2_1024 ALL NULL NULL NULL NULL 3 100.00 Using filesort
Warnings:
Note 1003 select left(`test`.`t1_1024`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1024`.`a2`,7) AS `left(a2,7)` from <materialize> (select group_concat(`test`.`t2_1024`.`b1` separator ',') from `test`.`t2_1024` group by `test`.`t2_1024`.`b2`) join `test`.`t1_1024` where (`test`.`t1_1024`.`a1` = `<subquery2>`.`group_concat(b1)`)
select left(a1,7), left(a2,7)
@ -886,7 +885,7 @@ where a1 in (select group_concat(b1) from t2_1024 group by b2);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1_1024 ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 261 test.t1_1024.a1 1 100.00 Using where
2 SUBQUERY t2_1024 ALL NULL NULL NULL NULL 3 100.00 Using filesort
2 MATERIALIZED t2_1024 ALL NULL NULL NULL NULL 3 100.00 Using filesort
Warnings:
Note 1003 select left(`test`.`t1_1024`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1024`.`a2`,7) AS `left(a2,7)` from <materialize> (select group_concat(`test`.`t2_1024`.`b1` separator ',') from `test`.`t2_1024` group by `test`.`t2_1024`.`b2`) join `test`.`t1_1024` where (`test`.`t1_1024`.`a1` = `<subquery2>`.`group_concat(b1)`)
select left(a1,7), left(a2,7)
@ -923,8 +922,8 @@ explain extended select left(a1,7), left(a2,7)
from t1_1025
where a1 in (select b1 from t2_1025 where b1 > '0');
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1_1025 ALL NULL NULL NULL NULL 3 100.00 Using where; Start temporary
1 PRIMARY t2_1025 ALL NULL NULL NULL NULL 3 100.00 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t1_1025 ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY t2_1025 ALL NULL NULL NULL NULL 3 100.00 Using where; Start temporary; End temporary; Using join buffer (flat, BNL join)
Warnings:
Note 1003 select left(`test`.`t1_1025`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1025`.`a2`,7) AS `left(a2,7)` from `test`.`t1_1025` semi join (`test`.`t2_1025`) where ((`test`.`t2_1025`.`b1` = `test`.`t1_1025`.`a1`) and (`test`.`t1_1025`.`a1` > '0'))
select left(a1,7), left(a2,7)
@ -937,8 +936,8 @@ explain extended select left(a1,7), left(a2,7)
from t1_1025
where (a1,a2) in (select b1, b2 from t2_1025 where b1 > '0');
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1_1025 ALL NULL NULL NULL NULL 3 100.00 Using where; Start temporary
1 PRIMARY t2_1025 ALL NULL NULL NULL NULL 3 100.00 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t1_1025 ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY t2_1025 ALL NULL NULL NULL NULL 3 100.00 Using where; Start temporary; End temporary; Using join buffer (flat, BNL join)
Warnings:
Note 1003 select left(`test`.`t1_1025`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1025`.`a2`,7) AS `left(a2,7)` from `test`.`t1_1025` semi join (`test`.`t2_1025`) where ((`test`.`t2_1025`.`b2` = `test`.`t1_1025`.`a2`) and (`test`.`t2_1025`.`b1` = `test`.`t1_1025`.`a1`) and (`test`.`t1_1025`.`a1` > '0'))
select left(a1,7), left(a2,7)
@ -951,8 +950,8 @@ explain extended select left(a1,7), left(a2,7)
from t1_1025
where a1 in (select substring(b1,1,1025) from t2_1025 where b1 > '0');
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1_1025 ALL NULL NULL NULL NULL 3 100.00 Start temporary
1 PRIMARY t2_1025 ALL NULL NULL NULL NULL 3 100.00 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t1_1025 ALL NULL NULL NULL NULL 3 100.00
1 PRIMARY t2_1025 ALL NULL NULL NULL NULL 3 100.00 Using where; Start temporary; End temporary; Using join buffer (flat, BNL join)
Warnings:
Note 1003 select left(`test`.`t1_1025`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1025`.`a2`,7) AS `left(a2,7)` from `test`.`t1_1025` semi join (`test`.`t2_1025`) where ((`test`.`t2_1025`.`b1` > '0') and (`test`.`t1_1025`.`a1` = substr(`test`.`t2_1025`.`b1`,1,1025)))
select left(a1,7), left(a2,7)
@ -967,7 +966,7 @@ where a1 in (select group_concat(b1) from t2_1025 group by b2);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1_1025 ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 261 test.t1_1025.a1 1 100.00 Using where
2 SUBQUERY t2_1025 ALL NULL NULL NULL NULL 3 100.00 Using filesort
2 MATERIALIZED t2_1025 ALL NULL NULL NULL NULL 3 100.00 Using filesort
Warnings:
Note 1003 select left(`test`.`t1_1025`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1025`.`a2`,7) AS `left(a2,7)` from <materialize> (select group_concat(`test`.`t2_1025`.`b1` separator ',') from `test`.`t2_1025` group by `test`.`t2_1025`.`b2`) join `test`.`t1_1025` where (`test`.`t1_1025`.`a1` = `<subquery2>`.`group_concat(b1)`)
select left(a1,7), left(a2,7)
@ -981,7 +980,7 @@ where a1 in (select group_concat(b1) from t2_1025 group by b2);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1_1025 ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 261 test.t1_1025.a1 1 100.00 Using where
2 SUBQUERY t2_1025 ALL NULL NULL NULL NULL 3 100.00 Using filesort
2 MATERIALIZED t2_1025 ALL NULL NULL NULL NULL 3 100.00 Using filesort
Warnings:
Note 1003 select left(`test`.`t1_1025`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1025`.`a2`,7) AS `left(a2,7)` from <materialize> (select group_concat(`test`.`t2_1025`.`b1` separator ',') from `test`.`t2_1025` group by `test`.`t2_1025`.`b2`) join `test`.`t1_1025` where (`test`.`t1_1025`.`a1` = `<subquery2>`.`group_concat(b1)`)
select left(a1,7), left(a2,7)
@ -1003,7 +1002,7 @@ where (a1, a2) in (select b1, b2 from t2bit);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1bit ALL NULL NULL NULL NULL 3 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 10 func,func 1 100.00
2 SUBQUERY t2bit ALL NULL NULL NULL NULL 3 100.00
2 MATERIALIZED t2bit ALL NULL NULL NULL NULL 3 100.00
Warnings:
Note 1003 select conv(`test`.`t1bit`.`a1`,10,2) AS `bin(a1)`,conv(`test`.`t1bit`.`a2`,10,2) AS `bin(a2)` from `test`.`t1bit` semi join (`test`.`t2bit`) where 1
select bin(a1), bin(a2)
@ -1025,8 +1024,8 @@ explain extended select bin(a1), a2
from t1bb
where (a1, a2) in (select b1, b2 from t2bb);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1bb ALL NULL NULL NULL NULL 3 100.00 Start temporary
1 PRIMARY t2bb ALL NULL NULL NULL NULL 3 100.00 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t1bb ALL NULL NULL NULL NULL 3 100.00
1 PRIMARY t2bb ALL NULL NULL NULL NULL 3 100.00 Using where; Start temporary; End temporary; Using join buffer (flat, BNL join)
Warnings:
Note 1003 select conv(`test`.`t1bb`.`a1`,10,2) AS `bin(a1)`,`test`.`t1bb`.`a2` AS `a2` from `test`.`t1bb` semi join (`test`.`t2bb`) where ((`test`.`t2bb`.`b2` = `test`.`t1bb`.`a2`) and (`test`.`t2bb`.`b1` = `test`.`t1bb`.`a1`))
select bin(a1), a2
@ -1075,7 +1074,7 @@ select a from t1 where a in (select c from t2 where d >= 20);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 6 100.00
1 PRIMARY t1 ALL NULL NULL NULL NULL 7 100.00 Using where; Using join buffer (flat, BNL join)
2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 100.00 Using where
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t1`.`a` = `test`.`t2`.`c`) and (`test`.`t2`.`d` >= 20))
select a from t1 where a in (select c from t2 where d >= 20);
@ -1090,7 +1089,7 @@ select a from t1 where a in (select c from t2 where d >= 20);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 6 100.00
1 PRIMARY t1 ref it1a it1a 4 test.t2.c 2 100.00 Using index
2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 100.00 Using where
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t1`.`a` = `test`.`t2`.`c`) and (`test`.`t2`.`d` >= 20))
select a from t1 where a in (select c from t2 where d >= 20);
@ -1105,7 +1104,7 @@ select a from t1 where a in (select c from t2 where d >= 20);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 index it1a it1a 4 NULL 7 100.00 Using index
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1 100.00
2 SUBQUERY t2 ALL NULL NULL NULL NULL 7 100.00 Using where
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 7 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`d` >= 20))
select a from t1 where a in (select c from t2 where d >= 20);
@ -1118,7 +1117,7 @@ explain extended
select a from t1 group by a having a in (select c from t2 where d >= 20);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 index NULL it1a 4 NULL 7 100.00 Using index
2 SUBQUERY t2 ALL NULL NULL NULL NULL 7 100.00 Using where
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 7 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` group by `test`.`t1`.`a` having <expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,`test`.`t1`.`a` in ( <materialize> (select `test`.`t2`.`c` from `test`.`t2` where (`test`.`t2`.`d` >= 20) ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where ((`test`.`t1`.`a` = `<subquery2>`.`c`))))))
select a from t1 group by a having a in (select c from t2 where d >= 20);
@ -1130,7 +1129,7 @@ explain extended
select a from t1 group by a having a in (select c from t2 where d >= 20);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 index NULL it1a 4 NULL 7 100.00 Using index
2 SUBQUERY t2 ALL NULL NULL NULL NULL 7 100.00 Using where
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 7 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` group by `test`.`t1`.`a` having <expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,`test`.`t1`.`a` in ( <materialize> (select `test`.`t2`.`c` from `test`.`t2` where (`test`.`t2`.`d` >= 20) ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where ((`test`.`t1`.`a` = `<subquery2>`.`c`))))))
select a from t1 group by a having a in (select c from t2 where d >= 20);
@ -1185,22 +1184,22 @@ drop table t2;
create table t1 (a1 int key);
create table t2 (b1 int);
insert into t1 values (5);
explain select min(a1) from t1 where 7 in (select b1 from t2 group by b1);
explain select min(a1) from t1 where 7 in (select max(b1) from t2 group by b1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1
1 PRIMARY <subquery2> const distinct_key distinct_key 5 const 1
2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL no matching row in const table
select min(a1) from t1 where 7 in (select b1 from t2 group by b1);
2 MATERIALIZED NULL NULL NULL NULL NULL NULL NULL no matching row in const table
select min(a1) from t1 where 7 in (select max(b1) from t2 group by b1);
min(a1)
NULL
set @save_optimizer_switch=@@optimizer_switch;
set @@optimizer_switch=@optimizer_switch_local_default;
set @@optimizer_switch='materialization=off,in_to_exists=on';
explain select min(a1) from t1 where 7 in (select b1 from t2 group by b1);
explain select min(a1) from t1 where 7 in (select max(b1) from t2 group by b1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1
2 DEPENDENT SUBQUERY t2 system NULL NULL NULL NULL 0 const row not found
select min(a1) from t1 where 7 in (select b1 from t2 group by b1);
select min(a1) from t1 where 7 in (select max(b1) from t2 group by b1);
min(a1)
NULL
set @@optimizer_switch=@optimizer_switch_local_default;
@ -1238,7 +1237,7 @@ explain select a,b from t1 where b in (select a from t1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 3 func 1 Using where
2 SUBQUERY t1 ALL NULL NULL NULL NULL 2
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 2
select a,b from t1 where b in (select a from t1);
a b
prepare st1 from "select a,b from t1 where b in (select a from t1)";
@ -1267,17 +1266,17 @@ WHERE (t1i) IN (
SELECT t2i
FROM t2
WHERE (t2i) IN (
SELECT t3i
SELECT max(t3i)
FROM t3
GROUP BY t3i
)
);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1
1 PRIMARY <subquery3> eq_ref distinct_key distinct_key 5 const 1 Start temporary
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY <subquery3> eq_ref distinct_key distinct_key 5 const 1
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where; Start temporary; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t4 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join)
3 SUBQUERY t3 ALL NULL NULL NULL NULL 2 Using temporary
3 MATERIALIZED t3 ALL NULL NULL NULL NULL 2 Using temporary
DROP TABLE t1,t2,t3,t4;
CREATE TABLE t1 (
pk INTEGER AUTO_INCREMENT,
@ -1376,17 +1375,20 @@ DROP TABLE t1,t2,t3;
CREATE TABLE t1 (a INTEGER);
CREATE TABLE t2 (b INTEGER);
INSERT INTO t2 VALUES (1);
set @tmp_optimizer_switch=@@optimizer_switch;
set optimizer_switch='derived_merge=off,derived_with_keys=off';
explain SELECT a FROM (
SELECT t1.* FROM t1 LEFT JOIN t2 ON t1.a > 3 OR t2.b IN (SELECT a FROM t1)
) table1;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2
2 DERIVED NULL NULL NULL NULL NULL NULL NULL no matching row in const table
3 SUBQUERY NULL NULL NULL NULL NULL NULL NULL no matching row in const table
3 MATERIALIZED NULL NULL NULL NULL NULL NULL NULL no matching row in const table
SELECT a FROM (
SELECT t1.* FROM t1 LEFT JOIN t2 ON t1.a > 3 OR t2.b IN (SELECT a FROM t1)
) table1;
a
set optimizer_switch=@tmp_optimizer_switch;
DROP TABLE t1, t2;
# End BUG#56367
#
@ -1411,7 +1413,7 @@ id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 const 1
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join)
2 SUBQUERY t1 system NULL NULL NULL NULL 1
2 MATERIALIZED t1 system NULL NULL NULL NULL 1
SELECT * FROM t1 JOIN t2 USING (f1)
WHERE t1.f1 IN (SELECT t1.pk FROM t1 ORDER BY t1.f1);
f1 pk pk
@ -1485,7 +1487,7 @@ EXPLAIN SELECT COUNT(*) FROM t1 WHERE (f1,f2) IN (SELECT f1,f2 FROM t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 2
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join)
2 SUBQUERY t2 ALL NULL NULL NULL NULL 2
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2
SELECT COUNT(*) FROM t1 WHERE (f1,f2) IN (SELECT f1,f2 FROM t2);
COUNT(*)
2
@ -1509,7 +1511,7 @@ EXPLAIN SELECT pk FROM t1 WHERE (a) IN (SELECT a FROM t2 WHERE pk > 0);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
2 SUBQUERY t2 range PRIMARY PRIMARY 4 NULL 2 Using index condition; Rowid-ordered scan
2 MATERIALIZED t2 range PRIMARY PRIMARY 4 NULL 2 Using index condition; Rowid-ordered scan
SELECT pk FROM t1 WHERE (a) IN (SELECT a FROM t2 WHERE pk > 0);
pk
2
@ -1550,7 +1552,7 @@ insert into t1 values (0),(1),(2);
explain select a, a in (select a from t1) from t0;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t0 ALL NULL NULL NULL NULL 3
2 SUBQUERY t1 ALL NULL NULL NULL NULL 3
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 3
select a, a in (select a from t1) from t0;
a a in (select a from t1)
0 1
@ -1765,5 +1767,88 @@ FROM t4 , t5
);
f1 f5
DROP TABLE t1, t2, t3, t4, t5;
#
# BUG#868908: Crash in check_simple_equality() with semijoin + materialization + prepared statement
#
CREATE TABLE t1 ( a int );
CREATE TABLE t3 ( b int, c int) ;
CREATE TABLE t2 ( a int ) ;
CREATE TABLE t4 ( a int , c int) ;
PREPARE st1 FROM "
SELECT STRAIGHT_JOIN *
FROM t1
WHERE ( 3 ) IN (
SELECT t3.b
FROM t3
LEFT JOIN (
t2 STRAIGHT_JOIN t4 ON ( t4.c = t2.a )
) ON ( t4.a = t3.c )
);
";
EXECUTE st1;
a
EXECUTE st1;
a
DROP TABLE t1,t2,t3,t4;
#
# BUG#901032: Wrong result for MIN/MAX on an indexed column with materialization and semijoin
#
CREATE TABLE t1 ( a INT, KEY(a) );
INSERT INTO t1 VALUES (1);
CREATE TABLE t2 ( b INT );
INSERT INTO t2 VALUES (2);
CREATE TABLE t3 ( c INT );
INSERT INTO t3 VALUES (2);
SELECT MIN(a) FROM t1, t2 WHERE b IN (SELECT c FROM t3 GROUP BY c);
MIN(a)
1
DROP TABLE t1,t2,t3;
#
#
# BUG#902632: Crash or invalid read at st_join_table::cleanup, st_table::disable_keyread
#
CREATE TABLE t1 ( a INT );
INSERT INTO t1 VALUES (1), (2);
CREATE TABLE t2 ( b INT );
INSERT INTO t2 VALUES (3), (4);
CREATE TABLE t3 ( c INT );
INSERT INTO t3 VALUES (5), (6);
SELECT * FROM t1 WHERE EXISTS (
SELECT DISTINCT b FROM t2
WHERE b <= a
AND b IN ( SELECT c FROM t3 GROUP BY c )
);
a
DROP TABLE t1,t2,t3;
#
# BUG#901506: Crash in TABLE_LIST::print on EXPLAIN EXTENDED
#
CREATE TABLE t1 ( a INT, KEY(a) );
INSERT INTO t1 VALUES (8);
EXPLAIN EXTENDED
SELECT * FROM t1
WHERE a IN ( SELECT MIN(a) FROM t1 );
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 system a NULL NULL NULL 1 100.00
1 PRIMARY <subquery2> system NULL NULL NULL NULL 1 100.00
2 MATERIALIZED NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away
Warnings:
Note 1003 select 8 AS `a` from dual where 1
DROP TABLE t1;
#
# BUG#904432: Wrong result with LEFT JOIN, constant table, semijoin=ON,materialization=ON
#
CREATE TABLE t1 ( a INT ) ENGINE=MyISAM;
INSERT INTO t1 VALUES (4);
CREATE TABLE t2 ( b INT NOT NULL, c INT );
INSERT INTO t2 VALUES (4,2),(4,2),(4,4),(1,1);
SELECT * FROM t1 LEFT JOIN t2 ON ( a = b )
WHERE a IN ( SELECT c FROM t2 );
a b c
4 4 2
4 4 2
4 4 4
DROP TABLE t1,t2;
# This must be at the end:
set optimizer_switch=@subselect_sj_mat_tmp;
set join_cache_level=@save_join_cache_level;

31
mysql-test/r/subselect_sj_nonmerged.result
View File

@ -10,7 +10,7 @@ explain select * from t0 where a in (select max(a) from t1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 1
1 PRIMARY t0 ALL NULL NULL NULL NULL 10 Using where; Using join buffer (flat, BNL join)
2 SUBQUERY t1 ALL NULL NULL NULL NULL 10
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 10
select * from t0 where a in (select max(a) from t1);
a
9
@ -42,23 +42,26 @@ explain select * from t3 where a in (select max(t2.a) from t1, t2 group by t2.b)
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 5 Using where
1 PRIMARY t3 eq_ref PRIMARY PRIMARY 8 <subquery2>.max(t2.a) 1 Using where; Using index
2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 Using temporary
2 SUBQUERY t1 ALL NULL NULL NULL NULL 10 Using join buffer (flat, BNL join)
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 Using temporary
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 10 Using join buffer (flat, BNL join)
# Compare to this which really will have 50 record combinations:
explain select * from t3 where a in (select max(t2.a) from t1, t2 group by t2.b, t1.b);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 50 Using where
1 PRIMARY t3 eq_ref PRIMARY PRIMARY 8 <subquery2>.max(t2.a) 1 Using where; Using index
2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 Using temporary
2 SUBQUERY t1 ALL NULL NULL NULL NULL 10 Using join buffer (flat, BNL join)
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 Using temporary
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 10 Using join buffer (flat, BNL join)
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='outer_join_with_cache=off';
# Outer joins also work:
explain select * from t3
where a in (select max(t2.a) from t1 left join t2 on t1.a=t2.a group by t2.b, t1.b);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 50 Using where
1 PRIMARY t3 eq_ref PRIMARY PRIMARY 8 <subquery2>.max(t2.a) 1 Using where; Using index
2 SUBQUERY t1 ALL NULL NULL NULL NULL 10 Using temporary
2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 Using where
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 10 Using temporary
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 Using where
SET optimizer_switch=@save_optimizer_switch;
create table t4 (a int, b int, filler char(20), unique key(a,b));
insert into t4 select A.a + 10*B.a, A.a + 10*B.a, 'filler' from t0 A, t0 B;
explain select * from t0, t4 where
@ -67,8 +70,8 @@ id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t0 ALL NULL NULL NULL NULL 10
1 PRIMARY t4 ALL a NULL NULL NULL 100 Using where; Using join buffer (flat, BNL join)
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 test.t4.a 1
2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 Using temporary
2 SUBQUERY t1 ALL NULL NULL NULL NULL 10 Using join buffer (flat, BNL join)
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 Using temporary
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 10 Using join buffer (flat, BNL join)
insert into t4 select 100 + (B.a *100 + A.a), 100 + (B.a*100 + A.a), 'filler' from t4 A, t0 B;
explain select * from t4 where
t4.a in (select max(t2.a) from t1, t2 group by t2.b) and
@ -77,10 +80,10 @@ id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 5 Using where
1 PRIMARY <subquery3> ALL distinct_key NULL NULL NULL 5 Using where; Using join buffer (flat, BNL join)
1 PRIMARY t4 ref a a 10 <subquery2>.max(t2.a),<subquery3>.max(t2.a) 12
3 SUBQUERY t2 ALL NULL NULL NULL NULL 5 Using temporary
3 SUBQUERY t1 ALL NULL NULL NULL NULL 10 Using join buffer (flat, BNL join)
2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 Using temporary
2 SUBQUERY t1 ALL NULL NULL NULL NULL 10 Using join buffer (flat, BNL join)
3 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 Using temporary
3 MATERIALIZED t1 ALL NULL NULL NULL NULL 10 Using join buffer (flat, BNL join)
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 Using temporary
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 10 Using join buffer (flat, BNL join)
drop table t1,t2,t3,t4;
drop table t0;
#
@ -114,6 +117,6 @@ id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 1 Using where
1 PRIMARY X ref a a 5 <subquery2>.max(a) 1 Using index
1 PRIMARY Y ALL NULL NULL NULL NULL 10 Using where; Using join buffer (flat, BNL join)
2 SUBQUERY t0 ALL NULL NULL NULL NULL 10
2 MATERIALIZED t0 ALL NULL NULL NULL NULL 10
drop table t0, t1;
set optimizer_switch=@save_optimizer_switch;

3
mysql-test/r/table_elim.result
View File

@ -1,5 +1,7 @@
drop table if exists t0, t1, t2, t3, t4, t5, t6;
drop view if exists v1, v2;
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='outer_join_with_cache=off';
create table t1 (a int);
insert into t1 values (0),(1),(2),(3);
create table t0 as select * from t1;
@ -586,3 +588,4 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 eq_ref PRIMARY PRIMARY 4 test.t1.a 1 Using where; Using index
drop view v1;
DROP TABLE t1,t2,t3;
SET optimizer_switch=@save_optimizer_switch;

44
mysql-test/r/trigger.result
View File

@ -2218,3 +2218,47 @@ aaa
DROP TABLE t1;
End of 5.5 tests.
#
# BUG #910083: materialized subquery in a trigger
#
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='materialization=on';
CREATE TABLE t1 (a int);
CREATE TABLE t2 (b int);
CREATE TRIGGER tr AFTER UPDATE ON t1 FOR EACH ROW
UPDATE t2 SET b = (SELECT COUNT(a) FROM t1);
INSERT INTO t1
VALUES (1),(2),(3),(4),(5),(6),(7),(8),(9);
INSERT INTO t2
VALUES (0),(0),(0),(0),(0),(0),(0),(0),(0);
UPDATE t1 SET a = 3;
SELECT COUNT(*) FROM t1;
COUNT(*)
9
SELECT * FROM t2;
b
9
9
9
9
9
9
9
9
9
UPDATE t1 SET a = 2;
SELECT * FROM t2;
b
9
9
9
9
9
9
9
9
9
SET optimizer_switch=@save_optimizer_switch;
DROP TRIGGER tr;
DROP TABLE t1, t2;
End of 5.3 tests.

11
mysql-test/r/type_datetime.result
View File

@ -510,6 +510,8 @@ create table t1 (id int(10) not null, cur_date datetime not null);
create table t2 (id int(10) not null, cur_date date not null);
insert into t1 (id, cur_date) values (1, '2007-04-25 18:30:22');
insert into t2 (id, cur_date) values (1, '2007-04-25');
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='semijoin_with_cache=off';
explain extended
select * from t1
where id in (select id from t1 as x1 where (t1.cur_date is null));
@ -538,8 +540,8 @@ explain extended
select * from t1
where id in (select id from t1 as x1 where (t1.cur_date is null));
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00 Using where; Start temporary
1 PRIMARY x1 ALL NULL NULL NULL NULL 2 100.00 Using where; End temporary
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00 Using where
1 PRIMARY x1 ALL NULL NULL NULL NULL 2 100.00 Using where; Start temporary; End temporary
Warnings:
Note 1276 Field or reference 'test.t1.cur_date' of SELECT #2 was resolved in SELECT #1
Note 1003 select `test`.`t1`.`id` AS `id`,`test`.`t1`.`cur_date` AS `cur_date` from `test`.`t1` semi join (`test`.`t1` `x1`) where ((`test`.`x1`.`id` = `test`.`t1`.`id`) and (`test`.`t1`.`cur_date` = 0))
@ -550,14 +552,15 @@ explain extended
select * from t2
where id in (select id from t2 as x1 where (t2.cur_date is null));
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 100.00 Using where; Start temporary
1 PRIMARY x1 ALL NULL NULL NULL NULL 2 100.00 Using where; End temporary
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 100.00 Using where
1 PRIMARY x1 ALL NULL NULL NULL NULL 2 100.00 Using where; Start temporary; End temporary
Warnings:
Note 1276 Field or reference 'test.t2.cur_date' of SELECT #2 was resolved in SELECT #1
Note 1003 select `test`.`t2`.`id` AS `id`,`test`.`t2`.`cur_date` AS `cur_date` from `test`.`t2` semi join (`test`.`t2` `x1`) where ((`test`.`x1`.`id` = `test`.`t2`.`id`) and (`test`.`t2`.`cur_date` = 0))
select * from t2
where id in (select id from t2 as x1 where (t2.cur_date is null));
id cur_date
SET optimizer_switch=@save_optimizer_switch;
drop table t1,t2;
SELECT
CAST('NULL' AS DATE) <=> CAST('2008-01-01' AS DATE) n1,

43
mysql-test/r/type_newdecimal.result
View File

@ -1544,6 +1544,49 @@ select * from t1;
5.05 / 0.014
360.714286
DROP TABLE t1;
#
# Bug#12563865
# ROUNDED,TMP_BUF,DECIMAL_VALUE STACK CORRUPTION IN ALL VERSIONS >=5.0
#
SELECT substring(('M') FROM (999999999999999999999999999999999999999999999999999999999999999999999999999999999)) AS foo;
foo
Warnings:
Warning 1916 Got overflow when converting '999999999999999999999999999999999999999999999999999999999999999999999999999999999' to INT. Value truncated.
Warning 1916 Got overflow when converting '999999999999999999999999999999999999999999999999999999999999999999999999999999999' to INT. Value truncated.
SELECT min(999999999999999999999999999999999999999999999999999999999999999999999999999999999) AS foo;
foo
999999999999999999999999999999999999999999999999999999999999999999999999999999999
SELECT multipolygonfromtext(('4294967294.1'),(999999999999999999999999999999999999999999999999999999999999999999999999999999999)) AS foo;
foo
NULL
Warnings:
Warning 1916 Got overflow when converting '999999999999999999999999999999999999999999999999999999999999999999999999999999999' to INT. Value truncated.
SELECT convert((999999999999999999999999999999999999999999999999999999999999999999999999999999999), decimal(30,30)) AS foo;
foo
0.999999999999999999999999999999
Warnings:
Warning 1264 Out of range value for column 'foo' at row 1
SELECT bit_xor(999999999999999999999999999999999999999999999999999999999999999999999999999999999) AS foo;
foo
9223372036854775807
Warnings:
Warning 1916 Got overflow when converting '999999999999999999999999999999999999999999999999999999999999999999999999999999999' to INT. Value truncated.
SELECT -(999999999999999999999999999999999999999999999999999999999999999999999999999999999) AS foo;
foo
-999999999999999999999999999999999999999999999999999999999999999999999999999999999
SELECT date_sub((999999999999999999999999999999999999999999999999999999999999999999999999999999999),
interval ((SELECT date_add((0x77500000),
interval ('Oml') second)))
day_minute)
AS foo;
foo
NULL
Warnings:
Warning 1292 Incorrect datetime value: '999999999999999999999999999999999999999999999999999999999999999999999999999999999'
SELECT truncate(999999999999999999999999999999999999999999999999999999999999999999999999999999999, 28) AS foo;
foo
999999999999999999999999999999999999999999999999999999999999999999999999999999999
End of 5.0 tests
select cast(143.481 as decimal(4,1));
cast(143.481 as decimal(4,1))

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