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Backport of subquery optimizations to 5.3.

Browse Source 
There are still test failures because of:
- Wrong query results in outer join + semi join
- EXPLAIN output differences
This commit is contained in:
Sergey Petrunya
2010-01-17 17:51:10 +03:00
parent 1a490f2da4
commit b83cb52e9e
57 changed files with 30727 additions and 504 deletions
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721
mysql-test/t/subselect.test
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@@ -1,3 +1,11 @@
#
# NOTE. Please do not switch connection inside this test.
# subselect.test is included from several other test cases which set
# explicit session properties that must be preserved throughout the test.
# If you need to use a dedicated connection for a test case,
# close the new connection and switch back to "default" as soon
# as possible.
#
# Initialise
--disable_warnings
drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t11,t12;
@@ -811,17 +819,12 @@ create table t1 (a int, b int, index a (a,b));
create table t2 (a int, index a (a));
create table t3 (a int, b int, index a (a));
insert into t1 values (1,10), (2,20), (3,30), (4,40);
--disable_query_log
begin;
# making table large enough
let $1 = 10000;
while ($1)
{
eval insert into t1 values (rand()*100000+200,rand()*100000);
dec $1;
}
commit;
--enable_query_log
create table t0(a int);
insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
insert into t1
select rand()*100000+200,rand()*100000 from t0 A, t0 B, t0 C, t0 D;
insert into t2 values (2), (3), (4), (5);
insert into t3 values (10,3), (20,4), (30,5);
select * from t2 where t2.a in (select a from t1);
@@ -834,7 +837,7 @@ insert into t1 values (3,31);
select * from t2 where t2.a in (select a from t1 where t1.b <> 30);
select * from t2 where t2.a in (select a from t1 where t1.b <> 30 and t1.b <> 31);
explain extended select * from t2 where t2.a in (select a from t1 where t1.b <> 30);
drop table t1, t2, t3;
drop table t0, t1, t2, t3;
#
# alloc_group_fields() working
@@ -1494,12 +1497,13 @@ drop table t1;
#
# Subselect in non-select command just after connection
# Disconnect new connection and switch back when test is finished
#
connect (root,localhost,root,,test,$MASTER_MYPORT,$MASTER_MYSOCK);
connection root;
set @got_val= (SELECT 1 FROM (SELECT 'A' as my_col) as T1 ) ;
connection default;
disconnect root;
connection default;
#
# primary query with temporary table and subquery with grouping
@@ -2512,33 +2516,30 @@ DROP TABLE t1, t2;
#
# Bug#14654 Cannot select from the same table twice within a UNION statement
#
CREATE TABLE t1 (i INT);
(SELECT i FROM t1) UNION (SELECT i FROM t1);
# disabled by psergey-merge:
#CREATE TABLE t1 (i INT);
#
#(SELECT i FROM t1) UNION (SELECT i FROM t1);
#SELECT sql_no_cache * FROM t1 WHERE NOT EXISTS
# (
# (SELECT i FROM t1) UNION
# (SELECT i FROM t1)
# );
#
#TODO:not supported
--error ER_PARSE_ERROR
SELECT sql_no_cache * FROM t1 WHERE NOT EXISTS
(
(SELECT i FROM t1) UNION
(SELECT i FROM t1)
);
#TODO:not supported
--error ER_PARSE_ERROR
SELECT * FROM t1
WHERE NOT EXISTS (((SELECT i FROM t1) UNION (SELECT i FROM t1)));
#TODO:not supported
--error ER_PARSE_ERROR
explain select ((select t11.i from t1 t11) union (select t12.i from t1 t12))
from t1;
#TODO:not supported
--error ER_PARSE_ERROR
explain select * from t1 where not exists
((select t11.i from t1 t11) union (select t12.i from t1 t12));
DROP TABLE t1;
#--error ER_PARSE_ERROR
#SELECT * FROM t1
#WHERE NOT EXISTS (((SELECT i FROM t1) UNION (SELECT i FROM t1)));
#
##TODO:not supported
#--error ER_PARSE_ERROR
#explain select ((select t11.i from t1 t11) union (select t12.i from t1 t12))
# from t1;
#
#explain select * from t1 where not exists
# ((select t11.i from t1 t11) union (select t12.i from t1 t12));
#
#DROP TABLE t1;
#
@@ -2605,27 +2606,16 @@ DROP TABLE t1,t2;
# slow with big sort_buffer_size
#
CREATE TABLE t1 (a int, b int auto_increment, PRIMARY KEY (b));
CREATE TABLE t1 (a int, b int, PRIMARY KEY (b));
CREATE TABLE t2 (x int auto_increment, y int, z int,
PRIMARY KEY (x), FOREIGN KEY (y) REFERENCES t1 (b));
create table t3 (a int);
insert into t3 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
--disable_query_log
begin;
let $1=3000;
while ($1)
{
eval INSERT INTO t1(a) VALUES(RAND()*1000);
eval SELECT MAX(b) FROM t1 INTO @id;
let $2=10;
while ($2)
{
eval INSERT INTO t2(y,z) VALUES(@id,RAND()*1000);
dec $2;
}
dec $1;
}
commit;
--enable_query_log
insert into t1 select RAND()*1000, A.a + 10*(B.a+10*(C.a+10*D.a))
from t3 A, t3 B, t3 C, t3 D where D.a<3;
insert into t2(y,z) select t1.b, RAND()*1000 from t1, t3;
enable_query_log;
SET SESSION sort_buffer_size = 32 * 1024;
SELECT SQL_NO_CACHE COUNT(*)
@@ -2637,8 +2627,7 @@ SELECT SQL_NO_CACHE COUNT(*)
FROM (SELECT a, b, (SELECT x FROM t2 WHERE y=b ORDER BY z DESC LIMIT 1) c
FROM t1) t;
DROP TABLE t1,t2;
DROP TABLE t1,t2,t3;
#
# Bug#25219 EXIST subquery with UNION over a mix of
@@ -3093,6 +3082,53 @@ INSERT INTO t2 VALUES (103, 203);
SELECT ((a1,a2) IN (SELECT * FROM t2 WHERE b2 > 0)) IS NULL FROM t1;
DROP TABLE t1, t2;
#
# Bug31048 Many nested subqueries may cause server crash.
#
#create table t1(a int,b int,key(a),key(b));
#insert into t1(a,b) values (1,2),(2,1),(2,3),(3,4),(5,4),(5,5),
# (6,7),(7,4),(5,3);
# TODO: enable the test after fixing 33266 in 6.0
#let $nesting= 26;
#let $should_work_nesting= 5;
#let $start= select sum(a),a from t1 where a> ( select sum(a) from t1 ;
#let $end= )group by a ;
#let $start_app= where a> ( select sum(a) from t1 ;
#let $end_pre= )group by b limit 1 ;
#--disable_result_log
#--disable_query_log
# At least 4 level nesting should work without errors
#while ($should_work_nesting)
#{
#--echo $should_work_nesting
# eval $start $end;
# eval explain $start $end;
# let $start= $start
# $start_app;
# let $end= $end_pre
# $end;
# dec $should_work_nesting;
#}
# Other may fail with the 'stack overrun error'
#while ($nesting)
#{
#--echo $nesting
#--error 0,1436
# eval $start $end;
#--error 0,1436
# eval explain $start $end;
# let $start= $start
# $start_app;
# let $end= $end_pre
# $end;
# dec $nesting;
#}
#--enable_result_log
#--enable_query_log
#drop table t1;
#
# Bug#28076 inconsistent binary/varbinary comparison
#
@@ -3195,52 +3231,45 @@ DROP TABLE t1;
#
# Bug#32036 EXISTS within a WHERE clause with a UNION crashes MySQL 5.122
#
CREATE TABLE t1 (a INT);
CREATE TABLE t2 (a INT);
INSERT INTO t1 VALUES (1),(2);
INSERT INTO t2 VALUES (1),(2);
SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a));
EXPLAIN EXTENDED
SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a));
#TODO:not supported
--error ER_PARSE_ERROR
EXPLAIN EXTENDED
SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a) UNION
(SELECT 1 FROM t2 WHERE t1.a = t2.a));
DROP TABLE t1,t2;
# disabled by psergey-merge:
#
#CREATE TABLE t1 (a INT);
#CREATE TABLE t2 (a INT);
#
#INSERT INTO t1 VALUES (1),(2);
#INSERT INTO t2 VALUES (1),(2);
#
#SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a));
#EXPLAIN EXTENDED
#SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a));
#
#
#EXPLAIN EXTENDED
#SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a) UNION
# (SELECT 1 FROM t2 WHERE t1.a = t2.a));
#
#DROP TABLE t1,t2;
#
# Bug#33675 Usage of an uninitialized memory by filesort in a subquery
# caused server crash.
#
create table t0(a int);
insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
create table t1(f11 int, f12 int);
create table t2(f21 int unsigned not null, f22 int, f23 varchar(10));
insert into t1 values(1,1),(2,2), (3, 3);
let $i=10000;
--disable_query_log
--disable_warnings
begin;
while ($i)
{
eval insert into t2 values (-1 , $i/5000 + 1, '$i');
dec $i;
}
commit;
insert into t2
select -1 , (@a:=(A.a + 10 * (B.a + 10 * (C.a+10*D.a))))/5000 + 1, @a
from t0 A, t0 B, t0 C, t0 D;
--enable_warnings
--enable_query_log
set session sort_buffer_size= 33*1024;
select count(*) from t1 where f12 =
(select f22 from t2 where f22 = f12 order by f21 desc, f22, f23 limit 1);
drop table t1,t2;
drop table t0,t1,t2;
#
# Bug#33794 "MySQL crashes executing specific query on specific dump"
@@ -3374,8 +3403,211 @@ WHERE a = 230;
DROP TABLE t1, st1, st2;
--echo #
--echo # Bug #48709: Assertion failed in sql_select.cc:11782:
--echo # int join_read_key(JOIN_TAB*)
--echo #
CREATE TABLE t1 (pk int PRIMARY KEY, int_key int);
INSERT INTO t1 VALUES (10,1), (14,1);
CREATE TABLE t2 (pk int PRIMARY KEY, int_key int);
INSERT INTO t2 VALUES (3,3), (5,NULL), (7,3);
--echo # should have eq_ref for t1
--replace_column 1 x 2 x 5 x 6 x 7 x 8 x 9 x 10 x
EXPLAIN
SELECT * FROM t2 outr
WHERE outr.int_key NOT IN (SELECT t1.pk FROM t1, t2)
ORDER BY outr.pk;
--echo # should not crash on debug binaries
SELECT * FROM t2 outr
WHERE outr.int_key NOT IN (SELECT t1.pk FROM t1, t2)
ORDER BY outr.pk;
DROP TABLE t1,t2;
--echo End of 5.0 tests.
#
# Test [NOT] IN truth table (both as top-level and general predicate).
#
create table t_out (subcase char(3),
a1 char(2), b1 char(2), c1 char(2));
create table t_in (a2 char(2), b2 char(2), c2 char(2));
insert into t_out values ('A.1','2a', NULL, '2a');
#------------------------- A.2 - impossible
insert into t_out values ('A.3', '2a', NULL, '2a');
insert into t_out values ('A.4', '2a', NULL, 'xx');
insert into t_out values ('B.1', '2a', '2a', '2a');
insert into t_out values ('B.2', '2a', '2a', '2a');
insert into t_out values ('B.3', '3a', 'xx', '3a');
insert into t_out values ('B.4', 'xx', '3a', '3a');
insert into t_in values ('1a', '1a', '1a');
insert into t_in values ('2a', '2a', '2a');
insert into t_in values (NULL, '2a', '2a');
insert into t_in values ('3a', NULL, '3a');
-- echo
-- echo Test general IN semantics (not top-level)
-- echo
-- echo case A.1
select subcase,
(a1, b1, c1) IN (select * from t_in where a2 = 'no_match') pred_in,
(a1, b1, c1) NOT IN (select * from t_in where a2 = 'no_match') pred_not_in
from t_out where subcase = 'A.1';
-- echo case A.2 - impossible
-- echo case A.3
select subcase,
(a1, b1, c1) IN (select * from t_in) pred_in,
(a1, b1, c1) NOT IN (select * from t_in) pred_not_in
from t_out where subcase = 'A.3';
-- echo case A.4
select subcase,
(a1, b1, c1) IN (select * from t_in) pred_in,
(a1, b1, c1) NOT IN (select * from t_in) pred_not_in
from t_out where subcase = 'A.4';
-- echo case B.1
select subcase,
(a1, b1, c1) IN (select * from t_in where a2 = 'no_match') pred_in,
(a1, b1, c1) NOT IN (select * from t_in where a2 = 'no_match') pred_not_in
from t_out where subcase = 'B.1';
-- echo case B.2
select subcase,
(a1, b1, c1) IN (select * from t_in) pred_in,
(a1, b1, c1) NOT IN (select * from t_in) pred_not_in
from t_out where subcase = 'B.2';
-- echo case B.3
select subcase,
(a1, b1, c1) IN (select * from t_in) pred_in,
(a1, b1, c1) NOT IN (select * from t_in) pred_not_in
from t_out where subcase = 'B.3';
-- echo case B.4
select subcase,
(a1, b1, c1) IN (select * from t_in) pred_in,
(a1, b1, c1) NOT IN (select * from t_in) pred_not_in
from t_out where subcase = 'B.4';
-- echo
-- echo Test IN as top-level predicate, and
-- echo as non-top level for cases A.3, B.3 (the only cases with NULL result).
-- echo
-- echo case A.1
select case when count(*) > 0 then 'T' else 'F' end as pred_in from t_out
where subcase = 'A.1' and
(a1, b1, c1) IN (select * from t_in where a1 = 'no_match');
select case when count(*) > 0 then 'T' else 'F' end as pred_not_in from t_out
where subcase = 'A.1' and
(a1, b1, c1) NOT IN (select * from t_in where a1 = 'no_match');
select case when count(*) > 0 then 'T' else 'F' end as not_pred_in from t_out
where subcase = 'A.1' and
NOT((a1, b1, c1) IN (select * from t_in where a1 = 'no_match'));
-- echo case A.3
select case when count(*) > 0 then 'T' else 'F' end as pred_in from t_out
where subcase = 'A.3' and
(a1, b1, c1) IN (select * from t_in);
select case when count(*) > 0 then 'T' else 'F' end as pred_not_in from t_out
where subcase = 'A.3' and
(a1, b1, c1) NOT IN (select * from t_in);
select case when count(*) > 0 then 'T' else 'F' end as not_pred_in from t_out
where subcase = 'A.3' and
NOT((a1, b1, c1) IN (select * from t_in));
# test non-top level result indirectly
select case when count(*) > 0 then 'N' else 'wrong result' end as pred_in from t_out
where subcase = 'A.3' and
((a1, b1, c1) IN (select * from t_in)) is NULL and
((a1, b1, c1) NOT IN (select * from t_in)) is NULL;
-- echo case A.4
select case when count(*) > 0 then 'T' else 'F' end as pred_in from t_out
where subcase = 'A.4' and
(a1, b1, c1) IN (select * from t_in);
select case when count(*) > 0 then 'T' else 'F' end as pred_not_in from t_out
where subcase = 'A.4' and
(a1, b1, c1) NOT IN (select * from t_in);
select case when count(*) > 0 then 'T' else 'F' end as not_pred_in from t_out
where subcase = 'A.4' and
NOT((a1, b1, c1) IN (select * from t_in));
-- echo case B.1
select case when count(*) > 0 then 'T' else 'F' end as pred_in from t_out
where subcase = 'B.1' and
(a1, b1, c1) IN (select * from t_in where a1 = 'no_match');
select case when count(*) > 0 then 'T' else 'F' end as pred_not_in from t_out
where subcase = 'B.1' and
(a1, b1, c1) NOT IN (select * from t_in where a1 = 'no_match');
select case when count(*) > 0 then 'T' else 'F' end as not_pred_in from t_out
where subcase = 'B.1' and
NOT((a1, b1, c1) IN (select * from t_in where a1 = 'no_match'));
-- echo case B.2
select case when count(*) > 0 then 'T' else 'F' end as pred_in from t_out
where subcase = 'B.2' and
(a1, b1, c1) IN (select * from t_in);
select case when count(*) > 0 then 'T' else 'F' end as pred_not_in from t_out
where subcase = 'B.2' and
(a1, b1, c1) NOT IN (select * from t_in);
select case when count(*) > 0 then 'T' else 'F' end as not_pred_in from t_out
where subcase = 'B.2' and
NOT((a1, b1, c1) IN (select * from t_in));
-- echo case B.3
select case when count(*) > 0 then 'T' else 'F' end as pred_in from t_out
where subcase = 'B.3' and
(a1, b1, c1) IN (select * from t_in);
select case when count(*) > 0 then 'T' else 'F' end as pred_not_in from t_out
where subcase = 'B.3' and
(a1, b1, c1) NOT IN (select * from t_in);
select case when count(*) > 0 then 'T' else 'F' end as not_pred_in from t_out
where subcase = 'B.3' and
NOT((a1, b1, c1) IN (select * from t_in));
# test non-top level result indirectly
select case when count(*) > 0 then 'N' else 'wrong result' end as pred_in from t_out
where subcase = 'B.3' and
((a1, b1, c1) IN (select * from t_in)) is NULL and
((a1, b1, c1) NOT IN (select * from t_in)) is NULL;
-- echo case B.4
select case when count(*) > 0 then 'T' else 'F' end as pred_in from t_out
where subcase = 'B.4' and
(a1, b1, c1) IN (select * from t_in);
select case when count(*) > 0 then 'T' else 'F' end as pred_not_in from t_out
where subcase = 'B.4' and
(a1, b1, c1) NOT IN (select * from t_in);
select case when count(*) > 0 then 'T' else 'F' end as not_pred_in from t_out
where subcase = 'B.4' and
NOT((a1, b1, c1) IN (select * from t_in));
drop table t_out;
drop table t_in;
#
# Bug#27348 SET FUNCTION used in a subquery from WHERE condition
#
@@ -3423,6 +3655,8 @@ SELECT * FROM t2 WHERE b NOT IN (SELECT max(t.c) FROM t1, t1 t WHERE t.c>10);
DROP TABLE t1,t2;
--echo End of 5.0 tests.
#
# Bug#38191 Server crash with subquery containing DISTINCT and ORDER BY
#
@@ -3480,44 +3714,266 @@ SELECT t1.a, (SELECT 1 FROM t2 WHERE t2.b=t3.c AND t2.c=t1.a ORDER BY t2.d LIMIT
DROP TABLE t1,t2,t3;
#
# Bug#37460 Assertion failed:
# !table->file || table->file->inited == handler::NONE
#
CREATE TABLE t1 (id int);
CREATE TABLE t2 (id int, c int);
# -- echo #
# -- echo # Bug#33204: INTO is allowed in subselect, causing inconsistent results
# -- echo #
# CREATE TABLE t1( a INT );
# INSERT INTO t1 VALUES (1),(2);
#
# CREATE TABLE t2( a INT, b INT );
#
# --error ER_PARSE_ERROR
# SELECT *
# FROM (SELECT a INTO @var FROM t1 WHERE a = 2) t1a;
# --error ER_PARSE_ERROR
# SELECT *
# FROM (SELECT a INTO OUTFILE 'file' FROM t1 WHERE a = 2) t1a;
# --error ER_PARSE_ERROR
# SELECT *
# FROM (SELECT a INTO DUMPFILE 'file' FROM t1 WHERE a = 2) t1a;
#
# --error ER_PARSE_ERROR
# SELECT * FROM (
# SELECT 1 a
# UNION
# SELECT a INTO @var FROM t1 WHERE a = 2
# ) t1a;
#
# --error ER_PARSE_ERROR
# SELECT * FROM (
# SELECT 1 a
# UNION
# SELECT a INTO OUTFILE 'file' FROM t1 WHERE a = 2
# ) t1a;
#
# --error ER_PARSE_ERROR
# SELECT * FROM (
# SELECT 1 a
# UNION
# SELECT a INTO DUMPFILE 'file' FROM t1 WHERE a = 2
# ) t1a;
#
# SELECT * FROM (SELECT a FROM t1 WHERE a = 2) t1a;
#
# SELECT * FROM (
# SELECT a FROM t1 WHERE a = 2
# UNION
# SELECT a FROM t1 WHERE a = 2
# ) t1a;
#
# SELECT * FROM (
# SELECT 1 a
# UNION
# SELECT a FROM t1 WHERE a = 2
# UNION
# SELECT a FROM t1 WHERE a = 2
# ) t1a;
#
# # This was not allowed previously. Possibly, it should be allowed on the future.
# # For now, the intent is to keep the fix as non-intrusive as possible.
# --error ER_PARSE_ERROR
# SELECT * FROM ((SELECT 1 a) UNION SELECT 1 a);
# SELECT * FROM (SELECT 1 a UNION (SELECT 1 a)) alias;
# SELECT * FROM (SELECT 1 UNION SELECT 1) t1a;
# --error ER_PARSE_ERROR
# SELECT * FROM ((SELECT 1 a INTO @a)) t1a;
# --error ER_PARSE_ERROR
# SELECT * FROM ((SELECT 1 a INTO OUTFILE 'file' )) t1a;
# --error ER_PARSE_ERROR
# SELECT * FROM ((SELECT 1 a INTO DUMPFILE 'file' )) t1a;
#
# --error ER_PARSE_ERROR
# SELECT * FROM (SELECT 1 a UNION (SELECT 1 a INTO @a)) t1a;
# --error ER_PARSE_ERROR
# SELECT * FROM (SELECT 1 a UNION (SELECT 1 a INTO DUMPFILE 'file' )) t1a;
# --error ER_PARSE_ERROR
# SELECT * FROM (SELECT 1 a UNION (SELECT 1 a INTO OUTFILE 'file' )) t1a;
#
# --error ER_PARSE_ERROR
# SELECT * FROM (SELECT 1 a UNION ((SELECT 1 a INTO @a))) t1a;
# --error ER_PARSE_ERROR
# SELECT * FROM (SELECT 1 a UNION ((SELECT 1 a INTO DUMPFILE 'file' ))) t1a;
# --error ER_PARSE_ERROR
# SELECT * FROM (SELECT 1 a UNION ((SELECT 1 a INTO OUTFILE 'file' ))) t1a;
#
# SELECT * FROM (SELECT 1 a ORDER BY a) t1a;
# SELECT * FROM (SELECT 1 a UNION SELECT 1 a ORDER BY a) t1a;
# SELECT * FROM (SELECT 1 a UNION SELECT 1 a LIMIT 1) t1a;
# SELECT * FROM (SELECT 1 a UNION SELECT 1 a ORDER BY a LIMIT 1) t1a;
#
# # Test of rule
# # table_factor: '(' get_select_lex query_expression_body ')' opt_table_alias
# # UNION should not be allowed inside the parentheses, nor should
# # aliases after.
# #
# SELECT * FROM t1 JOIN (SELECT 1 UNION SELECT 1) alias ON 1;
# --error ER_PARSE_ERROR
# SELECT * FROM t1 JOIN ((SELECT 1 UNION SELECT 1)) ON 1;
# --error ER_PARSE_ERROR
# SELECT * FROM t1 JOIN (t1 t1a UNION SELECT 1) ON 1;
# --error ER_PARSE_ERROR
# SELECT * FROM t1 JOIN ((t1 t1a UNION SELECT 1)) ON 1;
# --error ER_PARSE_ERROR
# SELECT * FROM t1 JOIN (t1 t1a) t1a ON 1;
# --error ER_PARSE_ERROR
# SELECT * FROM t1 JOIN ((t1 t1a)) t1a ON 1;
#
# SELECT * FROM t1 JOIN (t1 t1a) ON 1;
# SELECT * FROM t1 JOIN ((t1 t1a)) ON 1;
#
# SELECT * FROM (t1 t1a);
# SELECT * FROM ((t1 t1a));
#
# SELECT * FROM t1 JOIN (SELECT 1 t1a) alias ON 1;
# SELECT * FROM t1 JOIN ((SELECT 1 t1a)) alias ON 1;
#
# SELECT * FROM t1 JOIN (SELECT 1 a) a ON 1;
# SELECT * FROM t1 JOIN ((SELECT 1 a)) a ON 1;
#
# # For the join, TABLE_LIST::select_lex == NULL
# # Check that we handle this.
# --error ER_PARSE_ERROR
# SELECT * FROM (t1 JOIN (SELECT 1) t1a1 ON 1) t1a2;
#
# SELECT * FROM t1 WHERE a = ALL ( SELECT 1 );
# SELECT * FROM t1 WHERE a = ALL ( SELECT 1 UNION SELECT 1 );
# SELECT * FROM t1 WHERE a = ANY ( SELECT 3 UNION SELECT 1 );
#
# --error ER_PARSE_ERROR
# SELECT * FROM t1 WHERE a = ANY ( SELECT 1 UNION SELECT 1 INTO @a);
# --error ER_PARSE_ERROR
# SELECT * FROM t1 WHERE a = ANY ( SELECT 1 UNION SELECT 1 INTO OUTFILE 'file' );
# --error ER_PARSE_ERROR
# SELECT * FROM t1 WHERE a = ANY ( SELECT 1 UNION SELECT 1 INTO DUMPFILE 'file' );
#
# SELECT * FROM t1 WHERE a = ( SELECT 1 );
# SELECT * FROM t1 WHERE a = ( SELECT 1 UNION SELECT 1 );
# --error ER_PARSE_ERROR
# SELECT * FROM t1 WHERE a = ( SELECT 1 INTO @a);
# --error ER_PARSE_ERROR
# SELECT * FROM t1 WHERE a = ( SELECT 1 INTO OUTFILE 'file' );
# --error ER_PARSE_ERROR
# SELECT * FROM t1 WHERE a = ( SELECT 1 INTO DUMPFILE 'file' );
#
# --error ER_PARSE_ERROR
# SELECT * FROM t1 WHERE a = ( SELECT 1 UNION SELECT 1 INTO @a);
# --error ER_PARSE_ERROR
# SELECT * FROM t1 WHERE a = ( SELECT 1 UNION SELECT 1 INTO OUTFILE 'file' );
# --error ER_PARSE_ERROR
# SELECT * FROM t1 WHERE a = ( SELECT 1 UNION SELECT 1 INTO DUMPFILE 'file' );
#
# --error ER_PARSE_ERROR
# SELECT ( SELECT 1 INTO @v );
# --error ER_PARSE_ERROR
# SELECT ( SELECT 1 INTO OUTFILE 'file' );
# --error ER_PARSE_ERROR
# SELECT ( SELECT 1 INTO DUMPFILE 'file' );
#
# --error ER_PARSE_ERROR
# SELECT ( SELECT 1 UNION SELECT 1 INTO @v );
# --error ER_PARSE_ERROR
# SELECT ( SELECT 1 UNION SELECT 1 INTO OUTFILE 'file' );
# --error ER_PARSE_ERROR
# SELECT ( SELECT 1 UNION SELECT 1 INTO DUMPFILE 'file' );
#
# # Make sure context is popped when we leave the nested select
# SELECT ( SELECT a FROM t1 WHERE a = 1 ), a FROM t1;
# SELECT ( SELECT a FROM t1 WHERE a = 1 UNION SELECT 1 ), a FROM t1;
#
# # Make sure we have feature F561 (see .yy file)
# SELECT * FROM t2 WHERE (a, b) IN (SELECT a, b FROM t2);
#
# # Make sure the parser does not allow nested UNIONs anywhere
#
# --error ER_PARSE_ERROR
# SELECT 1 UNION ( SELECT 1 UNION SELECT 1 );
# --error ER_PARSE_ERROR
# ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1;
#
# --error ER_PARSE_ERROR
# SELECT ( SELECT 1 UNION ( SELECT 1 UNION SELECT 1 ) );
# --error ER_PARSE_ERROR
# SELECT ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1;
# SELECT ( SELECT 1 UNION SELECT 1 UNION SELECT 1 );
# SELECT ((SELECT 1 UNION SELECT 1 UNION SELECT 1));
#
# --error ER_PARSE_ERROR
# SELECT * FROM ( SELECT 1 UNION ( SELECT 1 UNION SELECT 1 ) );
# --error ER_PARSE_ERROR
# SELECT * FROM ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1 );
# SELECT * FROM ( SELECT 1 UNION SELECT 1 UNION SELECT 1 ) a;
#
# --error ER_PARSE_ERROR
# SELECT * FROM t1 WHERE a = ( SELECT 1 UNION ( SELECT 1 UNION SELECT 1 ) );
# --error ER_PARSE_ERROR
# SELECT * FROM t1 WHERE a = ALL ( SELECT 1 UNION ( SELECT 1 UNION SELECT 1 ) );
# --error ER_PARSE_ERROR
# SELECT * FROM t1 WHERE a = ANY ( SELECT 1 UNION ( SELECT 1 UNION SELECT 1 ) );
# --error ER_PARSE_ERROR
# SELECT * FROM t1 WHERE a IN ( SELECT 1 UNION ( SELECT 1 UNION SELECT 1 ) );
#
# --error ER_PARSE_ERROR
# SELECT * FROM t1 WHERE a = ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1 );
# --error ER_PARSE_ERROR
# SELECT * FROM t1 WHERE a = ALL ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1 );
# --error ER_PARSE_ERROR
# SELECT * FROM t1 WHERE a = ANY ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1 );
# --error ER_PARSE_ERROR
# SELECT * FROM t1 WHERE a IN ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1 );
#
# SELECT * FROM t1 WHERE a = ( SELECT 1 UNION SELECT 1 UNION SELECT 1 );
# SELECT * FROM t1 WHERE a = ALL ( SELECT 1 UNION SELECT 1 UNION SELECT 1 );
# SELECT * FROM t1 WHERE a = ANY ( SELECT 1 UNION SELECT 1 UNION SELECT 1 );
# SELECT * FROM t1 WHERE a IN ( SELECT 1 UNION SELECT 1 UNION SELECT 1 );
#
# --error ER_PARSE_ERROR
# SELECT * FROM t1 WHERE EXISTS ( SELECT 1 UNION SELECT 1 INTO @v );
# SELECT EXISTS(SELECT 1+1);
# --error ER_PARSE_ERROR
# SELECT EXISTS(SELECT 1+1 INTO @test);
# --error ER_PARSE_ERROR
# SELECT * FROM t1 WHERE a IN ( SELECT 1 UNION SELECT 1 INTO @v );
#
# --error ER_PARSE_ERROR
# SELECT * FROM t1 WHERE EXISTS ( SELECT 1 INTO @v );
# --error ER_PARSE_ERROR
# SELECT * FROM t1 WHERE a IN ( SELECT 1 INTO @v );
# DROP TABLE t1, t2;
INSERT INTO t1 (id) VALUES (1);
INSERT INTO t2 (id) VALUES (1);
INSERT INTO t1 (id) VALUES (1);
INSERT INTO t2 (id) VALUES (1);
--echo #
--echo # BUG#37822 Correlated subquery with IN and IS UNKNOWN provides wrong result
--echo #
create table t1(id integer primary key, g integer, v integer, s char(1));
create table t2(id integer primary key, g integer, v integer, s char(1));
insert into t1 values
(10, 10, 10, 'l'),
(20, 20, 20, 'l'),
(40, 40, 40, 'l'),
(41, 40, null, 'l'),
(50, 50, 50, 'l'),
(51, 50, null, 'l'),
(60, 60, 60, 'l'),
(61, 60, null, 'l'),
(70, 70, 70, 'l'),
(90, 90, null, 'l');
insert into t2 values
(10, 10, 10, 'r'),
(30, 30, 30, 'r'),
(50, 50, 50, 'r'),
(60, 60, 60, 'r'),
(61, 60, null, 'r'),
(70, 70, 70, 'r'),
(71, 70, null, 'r'),
(80, 80, 80, 'r'),
(81, 80, null, 'r'),
(100,100,null, 'r');
CREATE VIEW v1 AS
SELECT t2.c AS c FROM t1, t2
WHERE t1.id=t2.id AND 1 IN (SELECT id FROM t1) WITH CHECK OPTION;
UPDATE v1 SET c=1;
CREATE VIEW v2 (a,b) AS
SELECT t2.id, t2.c AS c FROM t1, t2
WHERE t1.id=t2.id AND 1 IN (SELECT id FROM t1) WITH CHECK OPTION;
--error ER_VIEW_CHECK_FAILED
INSERT INTO v2(a,b) VALUES (2,2);
# disabled for now as this refers to old content of t2
--disable_parsing
INSERT INTO v2(a,b) VALUES (1,2);
--enable_parsing
SELECT * FROM v1;
CREATE VIEW v3 AS
SELECT t2.c AS c FROM t2
WHERE 1 IN (SELECT id FROM t1) WITH CHECK OPTION;
DELETE FROM v3;
DROP VIEW v1,v2,v3;
DROP TABLE t1,t2;
select *
from t1
where v in(select v
from t2
where t1.g=t2.g) is unknown;
drop table t1, t2;
--echo #
--echo # Bug#37822 Correlated subquery with IN and IS UNKNOWN provides wrong result
@@ -3554,4 +4010,19 @@ where v in(select v
where t1.g=t2.g) is unknown;
drop table t1, t2;
#
# Bug #31157: Crash when select+order by the avg of some field within the
# group by
#
CREATE TABLE t1 (a ENUM('rainbow'));
INSERT INTO t1 VALUES (),(),(),(),();
SELECT 1 FROM t1 GROUP BY (SELECT 1 FROM t1 ORDER BY AVG(LAST_INSERT_ID()));
DROP TABLE t1;
CREATE TABLE t1 (a LONGBLOB);
INSERT INTO t1 SET a = 'aaaa';
INSERT INTO t1 SET a = 'aaaa';
SELECT 1 FROM t1 GROUP BY
(SELECT LAST_INSERT_ID() FROM t1 ORDER BY MIN(a) ASC LIMIT 1);
DROP TABLE t1;
--echo End of 5.1 tests.

440
mysql-test/t/subselect3.test
View File

@@ -1,5 +1,5 @@
--disable_warnings
drop table if exists t0, t1, t2, t3, t4, t5;
drop table if exists t0, t1, t2, t3, t4, t5, t11, t12, t21, t22;
--enable_warnings
#
@@ -618,6 +618,20 @@ SELECT 1 FROM t1 WHERE t1.a NOT IN (SELECT 1 FROM t1, t2 WHERE 0);
DROP TABLE t1, t2;
#
# Bug 2198
#
create table t1 (a int, b decimal(13, 3));
insert into t1 values (1, 0.123);
select a, (select max(b) from t1) into outfile "subselect.out.file.1" from t1;
delete from t1;
load data infile "subselect.out.file.1" into table t1;
select * from t1;
drop table t1;
let $datadir=`select @@datadir`;
--remove_file $datadir/test/subselect.out.file.1
#
# Bug #37894: Assertion in init_read_record_seq in handler.h line 1444
#
@@ -692,6 +706,13 @@ DROP TABLE t1;
--echo End of 5.0 tests
--echo #
--echo # BUG#36896: Server crash on SELECT FROM DUAL
--echo #
create table t1 (a int);
select 1 as res from dual where (1) in (select * from t1);
drop table t1;
#
# BUG#36135 "void Diagnostics_area::set_eof_status(THD*): Assertion `!is_set()' failed."
#
@@ -730,3 +751,420 @@ where
from t4, t5 limit 2));
drop table t0, t1, t2, t3, t4, t5;
--echo #
--echo # BUG#48177 - SELECTs with NOT IN subqueries containing NULL
--echo # values return too many records
--echo #
CREATE TABLE t1 (
i1 int DEFAULT NULL,
i2 int DEFAULT NULL
) ;
INSERT INTO t1 VALUES (1, NULL);
INSERT INTO t1 VALUES (2, 3);
INSERT INTO t1 VALUES (4, NULL);
INSERT INTO t1 VALUES (4, 0);
INSERT INTO t1 VALUES (NULL, NULL);
CREATE TABLE t2 (
i1 int DEFAULT NULL,
i2 int DEFAULT NULL
) ;
INSERT INTO t2 VALUES (4, NULL);
INSERT INTO t2 VALUES (5, 0);
--echo
--echo Data in t1
SELECT i1, i2 FROM t1;
--echo
--echo Data in subquery (should be filtered out)
SELECT i1, i2 FROM t2 ORDER BY i1;
FLUSH STATUS;
--echo
SELECT i1, i2
FROM t1
WHERE (i1, i2)
NOT IN (SELECT i1, i2 FROM t2);
--echo
--echo # Check that the subquery only has to be evaluated once
--echo # for all-NULL values even though there are two (NULL,NULL) records
--echo # Baseline:
SHOW STATUS LIKE '%Handler_read_rnd_next';
--echo
INSERT INTO t1 VALUES (NULL, NULL);
FLUSH STATUS;
--echo
SELECT i1, i2
FROM t1
WHERE (i1, i2)
NOT IN (SELECT i1, i2 FROM t2);
--echo
--echo # Handler_read_rnd_next should be one more than baseline
--echo # (read record from t1, but do not read from t2)
SHOW STATUS LIKE '%Handler_read_rnd_next';
DROP TABLE t1,t2;
--echo End of 5.1 tests
#
# Test for the problem with using sj-materialization when subquery's select
# list element SCOL is covered by equality propagation and has preceding equal
# column PCOL which belongs to a table within the the semi-join nest: SJM-Scan
# process should unpack column value not to SCOL but rather to PCOL, as
# substitute_best_equal has made all conditions to refer to PCOL.
#
CREATE TABLE t1 (
a int(11) NOT NULL,
b int(11) NOT NULL,
c datetime default NULL,
PRIMARY KEY (a),
KEY idx_bc (b,c)
);
INSERT INTO t1 VALUES
(406989,67,'2006-02-23 17:08:46'), (150078,67,'2005-10-26 11:17:45'),
(406993,67,'2006-02-27 11:20:57'), (245655,67,'2005-12-08 15:59:08'),
(406994,67,'2006-02-27 11:26:46'), (256,67,NULL),
(398341,67,'2006-02-20 04:48:44'), (254,67,NULL),(1120,67,NULL),
(406988,67,'2006-02-23 17:07:22'), (255,67,NULL),
(398340,67,'2006-02-20 04:38:53'),(406631,67,'2006-02-23 10:49:42'),
(245653,67,'2005-12-08 15:59:07'),(406992,67,'2006-02-24 16:47:18'),
(245654,67,'2005-12-08 15:59:08'),(406995,67,'2006-02-28 11:55:00'),
(127261,67,'2005-10-13 12:17:58'),(406991,67,'2006-02-24 16:42:32'),
(245652,67,'2005-12-08 15:58:27'),(398545,67,'2006-02-20 04:53:13'),
(154504,67,'2005-10-28 11:53:01'),(9199,67,NULL),(1,67,'2006-02-23 15:01:35'),
(223456,67,NULL),(4101,67,NULL),(1133,67,NULL),
(406990,67,'2006-02-23 18:01:45'),(148815,67,'2005-10-25 15:34:17'),
(148812,67,'2005-10-25 15:30:01'),(245651,67,'2005-12-08 15:58:27'),
(154503,67,'2005-10-28 11:52:38');
create table t11 select * from t1 where b = 67 AND (c IS NULL OR c > NOW()) order by 3 asc;
create table t12 select * from t1 where b = 67 AND (c IS NULL OR c > NOW()) order by 3 desc;
create table t21 select * from t1 where b = 67 AND (c IS NULL OR c > '2005-12-08') order by 3 asc;
create table t22 select * from t1 where b = 67 AND (c IS NULL OR c > '2005-12-08') order by 3 desc;
update t22 set c = '2005-12-08 15:58:27' where a = 255;
explain select t21.* from t21,t22 where t21.a = t22.a and
t22.a in (select t12.a from t11, t12 where t11.a in(255,256) and t11.a = t12.a and t11.c is null) and t22.c is null order by t21.a;
select t21.* from t21,t22 where t21.a = t22.a and
t22.a in (select t12.a from t11, t12 where t11.a in(255,256) and t11.a = t12.a and t11.c is null) and t22.c is null order by t21.a;
drop table t1, t11, t12, t21, t22;
#
# Test sj-materialization re-execution. The test isn't meaningful (materialized
# table stays the same across all executions) because it's hard to create a
# dataset that would verify correct re-execution without hitting BUG#31480
#
create table t1(a int);
insert into t1 values (0),(1);
set @@optimizer_switch='firstmatch=off';
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;
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;
set @@optimizer_switch=default;
drop table t1;
#
# Test confluent duplicate weedout
#
create table t0 (a int);
insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
create table t1 as select * from t0;
insert into t1 select a+10 from t0;
set @@optimizer_switch='firstmatch=off,materialization=off';
insert into t0 values(2);
explain select * from t1 where 2 in (select a from t0);
select * from t1 where 2 in (select a from t0);
set @@optimizer_switch='default,materialization=off';
explain select * from t1 where 2 in (select a from t0);
select * from t1 where 2 in (select a from t0);
set @@optimizer_switch=default;
#
# FirstMatch referring to a derived table
#
explain select * from (select a from t0) X where a in (select a from t1);
drop table t0, t1;
#
# LooseScan: Check if we can pick it together with range access
#
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));
insert into t1 select A.a+10*(B.a+10*C.a), 0, 0, 'filler' from t0 A, t0 B, t0 C;
insert into t1 select * from t1 where kp1 < 20;
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);
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
and t4.pk=t1.c);
drop table t1, t3, t4;
#
# Test if we handle duplicate elimination temptable overflowing to disk
#
create table t1 (a int) as select * from t0 where a < 5;
set @save_max_heap_table_size=@@max_heap_table_size;
set @@optimizer_switch='firstmatch=off,materialization=off';
set @@max_heap_table_size= 16384;
explain select count(*) from t0 A, t0 B, t0 C, t0 D where D.a in (select a from t1 E);
flush status;
select count(*) from t0 A, t0 B, t0 C, t0 D where D.a in (select a from t1 E);
show status like 'Created_tmp_disk_tables';
set @save_max_heap_table_size=@@max_heap_table_size;
set @@optimizer_switch=default;
drop table t0, t1;
#
# Materialize + Scan + ref access to the subsequent table based on scanned
# value
#
create table t0 (a int);
insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
create table t2(a int);
insert into t2 values (1),(2);
create table t3 ( a int , filler char(100), key(a));
insert into t3 select A.a + 10*B.a, 'filler' from t0 A, t0 B;
explain select * from t3 where a in (select a from t2) and (a > 5 or a < 10);
select * from t3 where a in (select a from t2);
drop table t0, t2, t3;
#
# DATETIME type checks
#
set @@optimizer_switch='firstmatch=off,materialization=off';
create table t1 (a date);
insert into t1 values ('2008-01-01'),('2008-01-01'),('2008-02-01'),('2008-02-01');
create table t2 (a int);
insert into t2 values (1),(2);
create table t3 (a char(10));
insert into t3 select * from t1;
insert into t3 values (1),(2);
explain select * from t2 where a in (select a from t1);
explain select * from t2 where a in (select a from t2);
explain select * from t2 where a in (select a from t3);
explain select * from t1 where a in (select a from t3);
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);
drop table t1;
set @@optimizer_switch=default;
#
# SJ-Materialization-scan for non-first table
#
create table t1 (a int);
insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
create table t2 as select * from t1;
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;
#
# Verify that straight_join modifier in parent or child prevents flattening
#
explain select straight_join * from t1 A, t1 B where A.a in (select a from t2);
explain select * from t2 where a in (select straight_join A.a from t1 A, t1 B);
explain select * from t2 where a in (select straight_join A.a from t1 A, t1 B);
explain select straight_join * from t2 X, t2 Y
where X.a in (select straight_join A.a from t1 A, t1 B);
#
# SJ-Materialization scan + first table being system const table
#
create table t0 (a int, b int);
insert into t0 values(1,1);
explain select * from t0, t3 where t3.a in (select a from t2) and (t3.a < 10 or t3.a >30);
create table t4 as select a as x, a as y from t1;
explain select * from t0, t3 where (t3.a, t3.b) in (select x,y from t4) and (t3.a < 10 or t3.a >30);
drop table t0,t1,t2,t3,t4;
#
# LooseScan with ref access
#
create table t0 (a int);
insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
create table t1 (a int, b int, filler char(100), key(a,b));
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);
explain select * from t2 where (b,a) in (select a,b from t1 where a=3);
drop table t1,t2;
#
# Multi-column sj-materialization with lookups
#
create table t1 (a int, b int);
insert into t1 select a,a from t0;
create table t2 (a int, b int);
insert into t2 select A.a + 10*B.a, A.a + 10*B.a from t0 A, t0 B;
set @@optimizer_switch='firstmatch=off';
explain select * from t1 where (a,b) in (select a,b from t2);
# A smallish test if find_best() still works for semi-join optimization:
set @save_optimizer_search_depth=@@optimizer_search_depth;
set @@optimizer_search_depth=63;
explain select * from t1 where (a,b) in (select a,b from t2);
set @@optimizer_search_depth=@save_optimizer_search_depth;
set @@optimizer_switch=default;
drop table t0, t1, t2;
#
# Primitive SJ-Materialization tests for DECIMAL and DATE
#
create table t0 (a decimal(4,2));
insert into t0 values (10.24), (22.11);
create table t1 as select * from t0;
insert into t1 select * from t0;
explain select * from t0 where a in (select a from t1);
select * from t0 where a in (select a from t1);
drop table t0, t1;
create table t0(a date);
insert into t0 values ('2008-01-01'),('2008-02-02');
create table t1 as select * from t0;
insert into t1 select * from t0;
explain select * from t0 where a in (select a from t1);
select * from t0 where a in (select a from t1);
drop table t0, t1;
#
# Fix a trivial crash with SJ-Materialization lookup, multiple tables in the
# subquery, and a condition on some of inner tables but not others
#
create table t0(a int);
insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
create table t1 as select a as a, a as b, a as c from t0 where a < 3;
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);
drop table t0,t1,t2;
--echo
--echo BUG#37842: Assertion in DsMrr_impl::dsmrr_init, at handler.cc:4307
--echo
CREATE TABLE t1 (
`pk` int(11) NOT NULL AUTO_INCREMENT,
`int_key` int(11) DEFAULT NULL,
PRIMARY KEY (`pk`),
KEY `int_key` (`int_key`)
) ENGINE=MyISAM;
INSERT INTO t1 VALUES (1,9),(2,3),(3,8),(4,6),(5,9),(6,5),(7,5),(8,9),(9,1),(10,10);
SELECT `pk` FROM t1 AS OUTR WHERE `int_key` = ALL (
SELECT `int_key` FROM t1 AS INNR WHERE INNR . `pk` >= 9
);
DROP TABLE t1;
--echo
--echo BUG#40118 Crash when running Batched Key Access and requiring one match for each key
--echo
create table t0(a int);
insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
create table t1 (a int, key(a));
insert into t1 select * from t0;
alter table t1 add b int not null, add filler char(200);
insert into t1 select * from t1;
insert into t1 select * from t1;
set @save_join_cache_level=@@join_cache_level;
set join_cache_level=6;
select * from t0 where t0.a in (select t1.a from t1 where t1.b=0);
set join_cache_level=@save_join_cache_level;
drop table t0, t1;
--echo #
--echo # BUG#32665 Query with dependent subquery is too slow
--echo #
create table t1 (
idIndividual int primary key
);
insert into t1 values (1),(2);
create table t2 (
idContact int primary key,
contactType int,
idObj int
);
insert into t2 values (1,1,1),(2,2,2),(3,3,3);
create table t3 (
idAddress int primary key,
idContact int,
postalStripped varchar(100)
);
insert into t3 values (1,1, 'foo'), (2,2,'bar');
--echo The following must be converted to a semi-join:
explain extended SELECT a.idIndividual FROM t1 a
WHERE a.idIndividual IN
( SELECT c.idObj FROM t3 cona
INNER JOIN t2 c ON c.idContact=cona.idContact
WHERE cona.postalStripped='T2H3B2'
);
drop table t1,t2,t3;
--echo #
--echo # BUG#47367 Crash in Name_resolution_context::process_error
--echo #
SET SESSION optimizer_switch = 'default,semijoin=off';
CREATE TABLE t1 (f1 INTEGER);
CREATE TABLE t2 LIKE t1;
delimiter |;
CREATE PROCEDURE p1 () BEGIN SELECT f1 FROM t1 WHERE f1 IN (SELECT f1 FROM t2); END|
delimiter ;|
CALL p1;
ALTER TABLE t2 CHANGE COLUMN f1 my_column INT;
CALL p1;
DROP PROCEDURE p1;
--echo # Restore the original column list of table t2:
ALTER TABLE t2 CHANGE COLUMN my_column f1 INT;
SET SESSION optimizer_switch = 'semijoin=on';
delimiter |;
--echo # Recreate procedure so that we eliminate any caching effects
CREATE PROCEDURE p1 () BEGIN SELECT f1 FROM t1 WHERE f1 IN (SELECT f1 FROM t2); END|
delimiter ;|
CALL p1;
ALTER TABLE t2 CHANGE COLUMN f1 my_column INT;
--error ER_BAD_FIELD_ERROR
CALL p1;
DROP PROCEDURE p1;
DROP TABLE t1, t2;

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#
# Run subselect3.test with BKA enabled
#
set join_cache_level=6;
show variables like 'join_cache_level';
--source t/subselect3.test
set join_cache_level=default;
show variables like 'join_cache_level';

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# General purpose bug fix tests go here : subselect.test too large
--echo #
--echo # Bug #46791: Assertion failed:(table->key_read==0),function unknown
--echo # function,file sql_base.cc
--echo #
CREATE TABLE t1 (a INT, b INT, KEY(a));
INSERT INTO t1 VALUES (1,1),(2,2);
CREATE TABLE t2 LIKE t1;
INSERT INTO t2 VALUES (1,1),(2,2);
CREATE TABLE t3 LIKE t1;
--echo # should have 1 impossible where and 2 dependent subqueries
EXPLAIN
SELECT 1 FROM t1
WHERE NOT EXISTS (SELECT 1 FROM t2 WHERE 1 = (SELECT MIN(t2.b) FROM t3))
ORDER BY count(*);
--echo # should not crash the next statement
SELECT 1 FROM t1
WHERE NOT EXISTS (SELECT 1 FROM t2 WHERE 1 = (SELECT MIN(t2.b) FROM t3))
ORDER BY count(*);
--echo # should not crash: the crash is caused by the previous statement
SELECT 1;
DROP TABLE t1,t2,t3;
--echo #
--echo # Bug #47106: Crash / segfault on adding EXPLAIN to a non-crashing
--echo # query
--echo #
CREATE TABLE t1 (
a INT,
b INT,
PRIMARY KEY (a),
KEY b (b)
);
INSERT INTO t1 VALUES (1, 1), (2, 1);
CREATE TABLE t2 LIKE t1;
INSERT INTO t2 SELECT * FROM t1;
CREATE TABLE t3 LIKE t1;
INSERT INTO t3 SELECT * FROM t1;
--echo # Should not crash.
--echo # Should have 1 impossible where and 2 dependent subqs.
EXPLAIN
SELECT
(SELECT 1 FROM t1,t2 WHERE t2.b > t3.b)
FROM t3 WHERE 1 = 0 GROUP BY 1;
--echo # should return 0 rows
SELECT
(SELECT 1 FROM t1,t2 WHERE t2.b > t3.b)
FROM t3 WHERE 1 = 0 GROUP BY 1;
DROP TABLE t1,t2,t3;
--echo End of 5.0 tests.
--echo #
--echo # BUG#46743 "Azalea processing correlated, aggregate SELECT
--echo # subqueries incorrectly"
--echo #
CREATE TABLE t1 (c int);
INSERT INTO t1 VALUES (NULL);
CREATE TABLE t2 (d int , KEY (d)); # index is needed for bug
INSERT INTO t2 VALUES (NULL),(NULL); # two rows needed for bug
# we see that subquery returns 0 rows
--echo 0 rows in subquery
SELECT 1 AS RESULT FROM t2,t1 WHERE d = c;
# so here it ends up as NULL
--echo base query
SELECT (SELECT 1 FROM t2 WHERE d = c) AS RESULT FROM t1 ;
EXPLAIN EXTENDED SELECT (SELECT 1 FROM t2 WHERE d = c) AS RESULT FROM t1 ;
--echo first equivalent variant
SELECT (SELECT 1 FROM t2 WHERE d = IFNULL(c,NULL)) AS RESULT FROM t1 GROUP BY c ;
EXPLAIN EXTENDED SELECT (SELECT 1 FROM t2 WHERE d = IFNULL(c,NULL)) AS RESULT FROM t1 GROUP BY c;
--echo second equivalent variant
# used to fail with 1242: Subquery returns more than 1 row
SELECT (SELECT 1 FROM t2 WHERE d = c) AS RESULT FROM t1 GROUP BY c ;
EXPLAIN EXTENDED SELECT (SELECT 1 FROM t2 WHERE d = c) AS RESULT FROM t1 GROUP BY c ;
DROP TABLE t1,t2;
--echo #
--echo # BUG#45928 "Differing query results depending on MRR and
--echo # engine_condition_pushdown settings"
--echo #
CREATE TABLE `t1` (
`pk` int(11) NOT NULL AUTO_INCREMENT,
`time_nokey` time NOT NULL,
`varchar_key` varchar(1) NOT NULL,
`varchar_nokey` varchar(1) NOT NULL,
PRIMARY KEY (`pk`),
KEY `varchar_key` (`varchar_key`)
) AUTO_INCREMENT=12 DEFAULT CHARSET=latin1;
INSERT INTO `t1` VALUES (10,'00:00:00','i','i'),(11,'00:00:00','','');
set @old_optimizer_switch = @@session.optimizer_switch,
@old_optimizer_use_mrr = @@session.optimizer_use_mrr,
@old_engine_condition_pushdown = @@session.engine_condition_pushdown;
SET SESSION OPTIMIZER_SWITCH = 'materialization=off,semijoin=off,loosescan=off,firstmatch=off';
SET SESSION optimizer_use_mrr = 'force';
SET SESSION engine_condition_pushdown = 1;
SELECT `time_nokey` G1 FROM t1 WHERE ( `varchar_nokey` , `varchar_key` ) IN (
SELECT `varchar_nokey` , `varchar_nokey` ) AND `varchar_key` >= 'c' HAVING G1 ORDER
BY `pk` ;
set @@session.optimizer_switch = @old_optimizer_switch,
@@session.optimizer_use_mrr = @old_optimizer_use_mrr,
@@session.engine_condition_pushdown = @old_engine_condition_pushdown;
DROP TABLE t1;
--echo #
--echo # BUG#45863 "Assertion failed: (fixed == 0), function fix_fields(),
--echo # file item.cc, line 4448"
--echo #
--disable_warnings
DROP TABLE IF EXISTS C, BB;
--enable_warnings
CREATE TABLE C (
varchar_nokey varchar(1) NOT NULL
);
INSERT INTO C VALUES
('k'),('a'),(''),('u'),('e'),('v'),('i'),
('t'),('u'),('f'),('u'),('m'),('j'),('f'),
('v'),('j'),('g'),('e'),('h'),('z');
CREATE TABLE BB (
varchar_nokey varchar(1) NOT NULL
);
INSERT INTO BB VALUES ('i'),('t');
-- error ER_OPERAND_COLUMNS
SELECT varchar_nokey FROM C
WHERE (varchar_nokey, OUTR) IN (SELECT varchar_nokey
FROM BB);
-- error ER_BAD_FIELD_ERROR
SELECT varchar_nokey FROM C
WHERE (varchar_nokey, OUTR) IN (SELECT varchar_nokey, varchar_nokey
FROM BB);
DROP TABLE C,BB;
--echo #
--echo # During work with BUG#45863 I had problems with a query that was
--echo # optimized differently in regular and prepared mode.
--echo # Because there was a bug in one of the selected strategies, I became
--echo # aware of the problem. Adding an EXPLAIN query to catch this.
--disable_warnings
DROP TABLE IF EXISTS t1, t2, t3;
--enable_warnings
CREATE TABLE t1
(EMPNUM CHAR(3) NOT NULL,
EMPNAME CHAR(20),
GRADE DECIMAL(4),
CITY CHAR(15));
CREATE TABLE t2
(PNUM CHAR(3) NOT NULL,
PNAME CHAR(20),
PTYPE CHAR(6),
BUDGET DECIMAL(9),
CITY CHAR(15));
CREATE TABLE t3
(EMPNUM CHAR(3) NOT NULL,
PNUM CHAR(3) NOT NULL,
HOURS DECIMAL(5));
INSERT INTO t1 VALUES ('E1','Alice',12,'Deale');
INSERT INTO t1 VALUES ('E2','Betty',10,'Vienna');
INSERT INTO t1 VALUES ('E3','Carmen',13,'Vienna');
INSERT INTO t1 VALUES ('E4','Don',12,'Deale');
INSERT INTO t1 VALUES ('E5','Ed',13,'Akron');
INSERT INTO t2 VALUES ('P1','MXSS','Design',10000,'Deale');
INSERT INTO t2 VALUES ('P2','CALM','Code',30000,'Vienna');
INSERT INTO t2 VALUES ('P3','SDP','Test',30000,'Tampa');
INSERT INTO t2 VALUES ('P4','SDP','Design',20000,'Deale');
INSERT INTO t2 VALUES ('P5','IRM','Test',10000,'Vienna');
INSERT INTO t2 VALUES ('P6','PAYR','Design',50000,'Deale');
INSERT INTO t3 VALUES ('E1','P1',40);
INSERT INTO t3 VALUES ('E1','P2',20);
INSERT INTO t3 VALUES ('E1','P3',80);
INSERT INTO t3 VALUES ('E1','P4',20);
INSERT INTO t3 VALUES ('E1','P5',12);
INSERT INTO t3 VALUES ('E1','P6',12);
INSERT INTO t3 VALUES ('E2','P1',40);
INSERT INTO t3 VALUES ('E2','P2',80);
INSERT INTO t3 VALUES ('E3','P2',20);
INSERT INTO t3 VALUES ('E4','P2',20);
INSERT INTO t3 VALUES ('E4','P4',40);
INSERT INTO t3 VALUES ('E4','P5',80);
SET @old_optimizer_switch = @@session.optimizer_switch;
SET @old_join_cache_level = @@session.join_cache_level;
SET SESSION optimizer_switch = 'firstmatch=on,loosescan=on,materialization=on,semijoin=on';
SET SESSION join_cache_level = 1;
CREATE UNIQUE INDEX t1_IDX ON t1(EMPNUM);
EXPLAIN SELECT EMPNAME
FROM t1
WHERE EMPNUM IN
(SELECT EMPNUM
FROM t3
WHERE PNUM IN
(SELECT PNUM
FROM t2
WHERE PTYPE = 'Design'));
PREPARE stmt FROM "EXPLAIN SELECT EMPNAME
FROM t1
WHERE EMPNUM IN
(SELECT EMPNUM
FROM t3
WHERE PNUM IN
(SELECT PNUM
FROM t2
WHERE PTYPE = 'Design'))";
EXECUTE stmt;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
DROP INDEX t1_IDX ON t1;
CREATE INDEX t1_IDX ON t1(EMPNUM);
EXPLAIN SELECT EMPNAME
FROM t1
WHERE EMPNUM IN
(SELECT EMPNUM
FROM t3
WHERE PNUM IN
(SELECT PNUM
FROM t2
WHERE PTYPE = 'Design'));
PREPARE stmt FROM "EXPLAIN SELECT EMPNAME
FROM t1
WHERE EMPNUM IN
(SELECT EMPNUM
FROM t3
WHERE PNUM IN
(SELECT PNUM
FROM t2
WHERE PTYPE = 'Design'))";
EXECUTE stmt;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
DROP INDEX t1_IDX ON t1;
EXPLAIN SELECT EMPNAME
FROM t1
WHERE EMPNUM IN
(SELECT EMPNUM
FROM t3
WHERE PNUM IN
(SELECT PNUM
FROM t2
WHERE PTYPE = 'Design'));
PREPARE stmt FROM "EXPLAIN SELECT EMPNAME
FROM t1
WHERE EMPNUM IN
(SELECT EMPNUM
FROM t3
WHERE PNUM IN
(SELECT PNUM
FROM t2
WHERE PTYPE = 'Design'))";
EXECUTE stmt;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
SET SESSION optimizer_switch = @old_optimizer_switch;
SET SESSION join_cache_level = @old_join_cache_level;
DROP TABLE t1, t2, t3;
--echo #
--echo # BUG#45221 Query SELECT pk FROM C WHERE pk IN (SELECT int_key) failing
--echo #
CREATE TABLE t1 (
i1_key INT,
i2 INT,
i3 INT,
KEY i1_index (i1_key)
);
INSERT INTO t1 VALUES (9,1,2), (9,2,1);
CREATE TABLE t2 (
pk INT NOT NULL,
i1 INT,
PRIMARY KEY (pk)
);
INSERT INTO t2 VALUES (9,1);
--echo # Enable Index condition pushdown
--replace_column 1 #
SELECT @old_icp:=@@engine_condition_pushdown;
SET SESSION engine_condition_pushdown = 'ON';
--echo
SELECT pk
FROM t2
WHERE
pk IN (
SELECT i1_key
FROM t1
WHERE t1.i2 < t1.i3 XOR t2.i1 > 1
ORDER BY t1.i2 desc);
--echo # Restore old value for Index condition pushdown
SET SESSION engine_condition_pushdown=@old_icp;
DROP TABLE t1,t2;

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#
# Hash semi-join regression tests
# (WL#1110: Subquery optimization: materialization)
#
--disable_warnings
drop table if exists t1, t2, t3, t1i, t2i, t3i;
drop view if exists v1, v2, v1m, v2m;
--enable_warnings
create table t1 (a1 char(8), a2 char(8));
create table t2 (b1 char(8), b2 char(8));
create table t3 (c1 char(8), c2 char(8));
insert into t1 values ('1 - 00', '2 - 00');
insert into t1 values ('1 - 01', '2 - 01');
insert into t1 values ('1 - 02', '2 - 02');
insert into t2 values ('1 - 01', '2 - 01');
insert into t2 values ('1 - 01', '2 - 01');
insert into t2 values ('1 - 02', '2 - 02');
insert into t2 values ('1 - 02', '2 - 02');
insert into t2 values ('1 - 03', '2 - 03');
insert into t3 values ('1 - 01', '2 - 01');
insert into t3 values ('1 - 02', '2 - 02');
insert into t3 values ('1 - 03', '2 - 03');
insert into t3 values ('1 - 04', '2 - 04');
# Indexed columns
create table t1i (a1 char(8), a2 char(8));
create table t2i (b1 char(8), b2 char(8));
create table t3i (c1 char(8), c2 char(8));
create index it1i1 on t1i (a1);
create index it1i2 on t1i (a2);
create index it1i3 on t1i (a1, a2);
create index it2i1 on t2i (b1);
create index it2i2 on t2i (b2);
create index it2i3 on t2i (b1, b2);
create index it3i1 on t3i (c1);
create index it3i2 on t3i (c2);
create index it3i3 on t3i (c1, c2);
insert into t1i select * from t1;
insert into t2i select * from t2;
insert into t3i select * from t3;
# force the use of materialization
set @@optimizer_switch='semijoin=off';
/******************************************************************************
* Simple tests.
******************************************************************************/
# non-indexed nullable fields
explain extended
select * from t1 where a1 in (select b1 from t2 where b1 > '0');
select * from t1 where a1 in (select b1 from t2 where b1 > '0');
explain extended
select * from t1 where a1 in (select b1 from t2 where b1 > '0' group by b1);
select * from t1 where a1 in (select b1 from t2 where b1 > '0' group by b1);
explain extended
select * from t1 where (a1, a2) in (select b1, b2 from t2 where b1 > '0' group by b1, b2);
select * from t1 where (a1, a2) in (select b1, b2 from t2 where b1 > '0' group by b1, b2);
explain extended
select * from t1 where (a1, a2) in (select b1, min(b2) from t2 where b1 > '0' group by b1);
select * from t1 where (a1, a2) in (select b1, min(b2) from t2 where b1 > '0' group by b1);
# indexed columns
explain extended
select * from t1i where a1 in (select b1 from t2i where b1 > '0');
select * from t1i where a1 in (select b1 from t2i where b1 > '0');
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 b1 from t2i where b1 > '0' group by b1);
explain extended
select * from t1i where (a1, a2) in (select b1, b2 from t2i where b1 > '0');
select * from t1i where (a1, a2) in (select b1, b2 from t2i where b1 > '0');
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, b2 from t2i where b1 > '0' group by b1, b2);
explain extended
select * from t1i where (a1, a2) in (select b1, min(b2) from t2i where b1 > '0' group by b1);
select * from t1i where (a1, a2) in (select b1, min(b2) from t2i where b1 > '0' group by b1);
# BUG#31639: Wrong plan for uncorrelated subquery when loose scan is applicable.
explain extended
select * from t1 where (a1, a2) in (select b1, max(b2) from t2i group by b1);
select * from t1 where (a1, a2) in (select b1, max(b2) from t2i group by b1);
prepare st1 from "explain select * from t1 where (a1, a2) in (select b1, max(b2) from t2i group by b1)";
execute st1;
execute st1;
prepare st2 from "select * from t1 where (a1, a2) in (select b1, max(b2) from t2i group by b1)";
execute st2;
execute st2;
explain extended
select * from t1 where (a1, a2) in (select b1, min(b2) from t2i where b1 > '0' group by b1);
select * from t1 where (a1, a2) in (select b1, min(b2) from t2i where b1 > '0' group by b1);
-- error 1235
select * from t1 where (a1, a2) in (select b1, min(b2) from t2i limit 1,1);
# test re-optimization/re-execution with different execution methods
# prepare once, exec with different modes
set @@optimizer_switch='default,semijoin=off';
prepare st1 from
"select * from t1 where (a1, a2) in (select b1, min(b2) from t2 where b1 > '0' group by b1)";
set @@optimizer_switch='default,materialization=off';
execute st1;
set @@optimizer_switch='default,semijoin=off';
execute st1;
set @@optimizer_switch='default,materialization=off';
prepare st1 from
"select * from t1 where (a1, a2) in (select b1, min(b2) from t2 where b1 > '0' group by b1)";
set @@optimizer_switch='default,semijoin=off';
execute st1;
set @@optimizer_switch='default,materialization=off';
execute st1;
set @@optimizer_switch='default,semijoin=off';
# materialize the result of ORDER BY
# non-indexed fields
explain extended
select * from t1 where (a1, a2) in (select b1, b2 from t2 order by b1, b2);
select * from t1 where (a1, a2) in (select b1, b2 from t2 order by b1, b2);
# indexed fields
explain extended
select * from t1i where (a1, a2) in (select b1, b2 from t2i order by b1, b2);
select * from t1i where (a1, a2) in (select b1, b2 from t2i order by b1, b2);
/******************************************************************************
* Views, UNIONs, several levels of nesting.
******************************************************************************/
# materialize the result of subquery over temp-table view
create algorithm=merge view v1 as
select b1, c2 from t2, t3 where b2 > c2;
create algorithm=merge view v2 as
select b1, c2 from t2, t3 group by b2, c2;
create algorithm=temptable view v1m as
select b1, c2 from t2, t3 where b2 > c2;
create algorithm=temptable view v2m as
select b1, c2 from t2, t3 group by b2, c2;
select * from v1 where (c2, b1) in (select c2, b1 from v2 where b1 is not null);
select * from v1 where (c2, b1) in (select distinct c2, b1 from v2 where b1 is not null);
select * from v1m where (c2, b1) in (select c2, b1 from v2m where b1 is not null);
select * from v1m where (c2, b1) in (select distinct c2, b1 from v2m where b1 is not null);
drop view v1, v2, v1m, v2m;
# nested subqueries, views
explain extended
select * from t1
where (a1, a2) in (select b1, b2 from t2 where b1 > '0') and
(a1, a2) in (select c1, c2 from t3
where (c1, c2) in (select b1, b2 from t2i where b2 > '0'));
select * from t1
where (a1, a2) in (select b1, b2 from t2 where b1 > '0') and
(a1, a2) in (select c1, c2 from t3
where (c1, c2) in (select b1, b2 from t2i where b2 > '0'));
explain extended
select * from t1i
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'));
select * from t1i
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'));
explain extended
select * from t1
where (a1, a2) in (select b1, b2 from t2
where b2 in (select c2 from t3 where c2 LIKE '%02') or
b2 in (select c2 from t3 where c2 LIKE '%03')) and
(a1, a2) in (select c1, c2 from t3
where (c1, c2) in (select b1, b2 from t2i where 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
b2 in (select c2 from t3 where c2 LIKE '%03')) and
(a1, a2) in (select c1, c2 from t3
where (c1, c2) in (select b1, b2 from t2i where b2 > '0'));
# as above with correlated innermost subquery
explain extended
select * from t1
where (a1, a2) in (select b1, b2 from t2
where b2 in (select c2 from t3 t3a where c1 = a1) or
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'));
select * from t1
where (a1, a2) in (select b1, b2 from t2
where b2 in (select c2 from t3 t3a where c1 = a1) or
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'));
# multiple levels of nesting subqueries, unions
explain extended
(select * from t1
where (a1, a2) in (select b1, b2 from t2
where b2 in (select c2 from t3 where c2 LIKE '%02') or
b2 in (select c2 from t3 where c2 LIKE '%03')
group by b1, b2) and
(a1, a2) in (select c1, c2 from t3
where (c1, c2) in (select b1, b2 from t2i where b2 > '0')))
UNION
(select * from t1i
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')));
(select * from t1
where (a1, a2) in (select b1, b2 from t2
where b2 in (select c2 from t3 where c2 LIKE '%02') or
b2 in (select c2 from t3 where c2 LIKE '%03')
group by b1, b2) and
(a1, a2) in (select c1, c2 from t3
where (c1, c2) in (select b1, b2 from t2i where b2 > '0')))
UNION
(select * from t1i
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')));
# UNION of subqueries as a subquery (thus it is not computed via materialization)
explain extended
select * from t1
where (a1, a2) in (select * from t1 where a1 > '0' UNION select * from t2 where b1 < '9') and
(a1, a2) in (select c1, c2 from t3
where (c1, c2) in (select b1, b2 from t2i where b2 > '0'));
select * from t1
where (a1, a2) in (select * from t1 where a1 > '0' UNION select * from t2 where b1 < '9') and
(a1, a2) in (select c1, c2 from t3
where (c1, c2) in (select b1, b2 from t2i where b2 > '0'));
# as above, with a join conditon between the outer references
explain extended
select * from t1, t3
where (a1, a2) in (select * from t1 where a1 > '0' UNION select * from t2 where b1 < '9') and
(c1, c2) in (select c1, c2 from t3
where (c1, c2) in (select b1, b2 from t2i where b2 > '0')) and
a1 = c1;
select * from t1, t3
where (a1, a2) in (select * from t1 where a1 > '0' UNION select * from t2 where b1 < '9') and
(c1, c2) in (select c1, c2 from t3
where (c1, c2) in (select b1, b2 from t2i where b2 > '0')) and
a1 = c1;
/******************************************************************************
* Negative tests, where materialization should not be applied.
******************************************************************************/
# UNION in a subquery
explain extended
select * from t3
where c1 in (select a1 from t1 where a1 > '0' UNION select b1 from t2 where b1 < '9');
select * from t3
where c1 in (select a1 from t1 where a1 > '0' UNION select b1 from t2 where b1 < '9');
# correlation
explain extended
select * from t1
where (a1, a2) in (select b1, b2 from t2
where b2 in (select c2 from t3 t3a where c1 = a1) or
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));
# subquery has no tables
explain extended
select * from t1 where (a1, a2) in (select '1 - 01', '2 - 01');
select * from t1 where (a1, a2) in (select '1 - 01', '2 - 01');
explain extended
select * from t1 where (a1, a2) in (select '1 - 01', '2 - 01' from dual);
select * from t1 where (a1, a2) in (select '1 - 01', '2 - 01' from dual);
/******************************************************************************
* Subqueries in other uncovered clauses.
******************************************************************************/
/* SELECT clause */
select ((a1,a2) IN (select * from t2 where b2 > '0')) IS NULL from t1;
/* GROUP BY clause */
create table columns (col int key);
insert into columns values (1), (2);
explain extended
select * from t1 group by (select col from columns limit 1);
select * from t1 group by (select col from columns limit 1);
explain extended
select * from t1 group by (a1 in (select col from columns));
select * from t1 group by (a1 in (select col from columns));
/* ORDER BY clause */
explain extended
select * from t1 order by (select col from columns limit 1);
select * from t1 order by (select col from columns limit 1);
/******************************************************************************
* Column types/sizes that affect materialization.
******************************************************************************/
/*
Test that BLOBs are not materialized (except when arguments of some functions).
*/
# force materialization to be always considered
set @@optimizer_switch='semijoin=off';
set @prefix_len = 6;
# BLOB == 16 (small blobs that could be stored in HEAP tables)
set @blob_len = 16;
set @suffix_len = @blob_len - @prefix_len;
create table t1_16 (a1 blob(16), a2 blob(16));
create table t2_16 (b1 blob(16), b2 blob(16));
create table t3_16 (c1 blob(16), c2 blob(16));
insert into t1_16 values
(concat('1 - 00', repeat('x', @suffix_len)), concat('2 - 00', repeat('x', @suffix_len)));
insert into t1_16 values
(concat('1 - 01', repeat('x', @suffix_len)), concat('2 - 01', repeat('x', @suffix_len)));
insert into t1_16 values
(concat('1 - 02', repeat('x', @suffix_len)), concat('2 - 02', repeat('x', @suffix_len)));
insert into t2_16 values
(concat('1 - 01', repeat('x', @suffix_len)), concat('2 - 01', repeat('x', @suffix_len)));
insert into t2_16 values
(concat('1 - 02', repeat('x', @suffix_len)), concat('2 - 02', repeat('x', @suffix_len)));
insert into t2_16 values
(concat('1 - 03', repeat('x', @suffix_len)), concat('2 - 03', repeat('x', @suffix_len)));
insert into t3_16 values
(concat('1 - 01', repeat('x', @suffix_len)), concat('2 - 01', repeat('x', @suffix_len)));
insert into t3_16 values
(concat('1 - 02', repeat('x', @suffix_len)), concat('2 - 02', repeat('x', @suffix_len)));
insert into t3_16 values
(concat('1 - 03', repeat('x', @suffix_len)), concat('2 - 03', repeat('x', @suffix_len)));
insert into t3_16 values
(concat('1 - 04', repeat('x', @suffix_len)), concat('2 - 04', repeat('x', @suffix_len)));
# single value transformer
explain extended select left(a1,7), left(a2,7)
from t1_16
where a1 in (select b1 from t2_16 where b1 > '0');
select left(a1,7), left(a2,7)
from t1_16
where a1 in (select b1 from t2_16 where b1 > '0');
# row value transformer
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');
select left(a1,7), left(a2,7)
from t1_16
where (a1,a2) in (select b1, b2 from t2_16 where b1 > '0');
# string function with a blob argument, the return type may be != blob
explain extended select left(a1,7), left(a2,7)
from t1_16
where a1 in (select substring(b1,1,16) from t2_16 where b1 > '0');
select left(a1,7), left(a2,7)
from t1_16
where a1 in (select substring(b1,1,16) from t2_16 where b1 > '0');
# group_concat with a blob argument - depends on
# the variable group_concat_max_len, and
# convert_blob_length == max_len*collation->mbmaxlen > CONVERT_IF_BIGGER_TO_BLOB
explain extended select left(a1,7), left(a2,7)
from t1_16
where a1 in (select group_concat(b1) from t2_16 group by b2);
select left(a1,7), left(a2,7)
from t1_16
where a1 in (select group_concat(b1) from t2_16 group by b2);
set @@group_concat_max_len = 256; # anything < (CONVERT_IF_BIGGER_TO_BLOB = 512)
explain extended select left(a1,7), left(a2,7)
from t1_16
where a1 in (select group_concat(b1) from t2_16 group by b2);
select left(a1,7), left(a2,7)
from t1_16
where a1 in (select group_concat(b1) from t2_16 group by b2);
# BLOB column at the second (intermediate) level of nesting
explain extended
select * from t1
where concat(a1,'x') IN
(select left(a1,8) from t1_16
where (a1, a2) IN
(select t2_16.b1, t2_16.b2 from t2_16, t2
where t2.b2 = substring(t2_16.b2,1,6) and
t2.b1 IN (select c1 from t3 where c2 > '0')));
drop table t1_16, t2_16, t3_16;
# BLOB == 512 (CONVERT_IF_BIGGER_TO_BLOB == 512)
set @blob_len = 512;
set @suffix_len = @blob_len - @prefix_len;
create table t1_512 (a1 blob(512), a2 blob(512));
create table t2_512 (b1 blob(512), b2 blob(512));
create table t3_512 (c1 blob(512), c2 blob(512));
insert into t1_512 values
(concat('1 - 00', repeat('x', @suffix_len)), concat('2 - 00', repeat('x', @suffix_len)));
insert into t1_512 values
(concat('1 - 01', repeat('x', @suffix_len)), concat('2 - 01', repeat('x', @suffix_len)));
insert into t1_512 values
(concat('1 - 02', repeat('x', @suffix_len)), concat('2 - 02', repeat('x', @suffix_len)));
insert into t2_512 values
(concat('1 - 01', repeat('x', @suffix_len)), concat('2 - 01', repeat('x', @suffix_len)));
insert into t2_512 values
(concat('1 - 02', repeat('x', @suffix_len)), concat('2 - 02', repeat('x', @suffix_len)));
insert into t2_512 values
(concat('1 - 03', repeat('x', @suffix_len)), concat('2 - 03', repeat('x', @suffix_len)));
insert into t3_512 values
(concat('1 - 01', repeat('x', @suffix_len)), concat('2 - 01', repeat('x', @suffix_len)));
insert into t3_512 values
(concat('1 - 02', repeat('x', @suffix_len)), concat('2 - 02', repeat('x', @suffix_len)));
insert into t3_512 values
(concat('1 - 03', repeat('x', @suffix_len)), concat('2 - 03', repeat('x', @suffix_len)));
insert into t3_512 values
(concat('1 - 04', repeat('x', @suffix_len)), concat('2 - 04', repeat('x', @suffix_len)));
# single value transformer
explain extended select left(a1,7), left(a2,7)
from t1_512
where a1 in (select b1 from t2_512 where b1 > '0');
select left(a1,7), left(a2,7)
from t1_512
where a1 in (select b1 from t2_512 where b1 > '0');
# row value transformer
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');
select left(a1,7), left(a2,7)
from t1_512
where (a1,a2) in (select b1, b2 from t2_512 where b1 > '0');
# string function with a blob argument, the return type may be != blob
explain extended select left(a1,7), left(a2,7)
from t1_512
where a1 in (select substring(b1,1,512) from t2_512 where b1 > '0');
select left(a1,7), left(a2,7)
from t1_512
where a1 in (select substring(b1,1,512) from t2_512 where b1 > '0');
# group_concat with a blob argument - depends on
# the variable group_concat_max_len, and
# convert_blob_length == max_len*collation->mbmaxlen > CONVERT_IF_BIGGER_TO_BLOB
explain extended select left(a1,7), left(a2,7)
from t1_512
where a1 in (select group_concat(b1) from t2_512 group by b2);
select left(a1,7), left(a2,7)
from t1_512
where a1 in (select group_concat(b1) from t2_512 group by b2);
set @@group_concat_max_len = 256; # anything < (CONVERT_IF_BIGGER_TO_BLOB = 512)
explain extended select left(a1,7), left(a2,7)
from t1_512
where a1 in (select group_concat(b1) from t2_512 group by b2);
select left(a1,7), left(a2,7)
from t1_512
where a1 in (select group_concat(b1) from t2_512 group by b2);
drop table t1_512, t2_512, t3_512;
# BLOB == 1024 (group_concat_max_len == 1024)
set @blob_len = 1024;
set @suffix_len = @blob_len - @prefix_len;
create table t1_1024 (a1 blob(1024), a2 blob(1024));
create table t2_1024 (b1 blob(1024), b2 blob(1024));
create table t3_1024 (c1 blob(1024), c2 blob(1024));
insert into t1_1024 values
(concat('1 - 00', repeat('x', @suffix_len)), concat('2 - 00', repeat('x', @suffix_len)));
insert into t1_1024 values
(concat('1 - 01', repeat('x', @suffix_len)), concat('2 - 01', repeat('x', @suffix_len)));
insert into t1_1024 values
(concat('1 - 02', repeat('x', @suffix_len)), concat('2 - 02', repeat('x', @suffix_len)));
insert into t2_1024 values
(concat('1 - 01', repeat('x', @suffix_len)), concat('2 - 01', repeat('x', @suffix_len)));
insert into t2_1024 values
(concat('1 - 02', repeat('x', @suffix_len)), concat('2 - 02', repeat('x', @suffix_len)));
insert into t2_1024 values
(concat('1 - 03', repeat('x', @suffix_len)), concat('2 - 03', repeat('x', @suffix_len)));
insert into t3_1024 values
(concat('1 - 01', repeat('x', @suffix_len)), concat('2 - 01', repeat('x', @suffix_len)));
insert into t3_1024 values
(concat('1 - 02', repeat('x', @suffix_len)), concat('2 - 02', repeat('x', @suffix_len)));
insert into t3_1024 values
(concat('1 - 03', repeat('x', @suffix_len)), concat('2 - 03', repeat('x', @suffix_len)));
insert into t3_1024 values
(concat('1 - 04', repeat('x', @suffix_len)), concat('2 - 04', repeat('x', @suffix_len)));
# single value transformer
explain extended select left(a1,7), left(a2,7)
from t1_1024
where a1 in (select b1 from t2_1024 where b1 > '0');
select left(a1,7), left(a2,7)
from t1_1024
where a1 in (select b1 from t2_1024 where b1 > '0');
# row value transformer
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');
select left(a1,7), left(a2,7)
from t1_1024
where (a1,a2) in (select b1, b2 from t2_1024 where b1 > '0');
# string function with a blob argument, the return type may be != blob
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');
select left(a1,7), left(a2,7)
from t1_1024
where a1 in (select substring(b1,1,1024) from t2_1024 where b1 > '0');
# group_concat with a blob argument - depends on
# the variable group_concat_max_len, and
# convert_blob_length == max_len*collation->mbmaxlen > CONVERT_IF_BIGGER_TO_BLOB
explain extended select left(a1,7), left(a2,7)
from t1_1024
where a1 in (select group_concat(b1) from t2_1024 group by b2);
select left(a1,7), left(a2,7)
from t1_1024
where a1 in (select group_concat(b1) from t2_1024 group by b2);
set @@group_concat_max_len = 256; # anything < (CONVERT_IF_BIGGER_TO_BLOB = 1024)
explain extended select left(a1,7), left(a2,7)
from t1_1024
where a1 in (select group_concat(b1) from t2_1024 group by b2);
select left(a1,7), left(a2,7)
from t1_1024
where a1 in (select group_concat(b1) from t2_1024 group by b2);
drop table t1_1024, t2_1024, t3_1024;
# BLOB == 1025
set @blob_len = 1025;
set @suffix_len = @blob_len - @prefix_len;
create table t1_1025 (a1 blob(1025), a2 blob(1025));
create table t2_1025 (b1 blob(1025), b2 blob(1025));
create table t3_1025 (c1 blob(1025), c2 blob(1025));
insert into t1_1025 values
(concat('1 - 00', repeat('x', @suffix_len)), concat('2 - 00', repeat('x', @suffix_len)));
insert into t1_1025 values
(concat('1 - 01', repeat('x', @suffix_len)), concat('2 - 01', repeat('x', @suffix_len)));
insert into t1_1025 values
(concat('1 - 02', repeat('x', @suffix_len)), concat('2 - 02', repeat('x', @suffix_len)));
insert into t2_1025 values
(concat('1 - 01', repeat('x', @suffix_len)), concat('2 - 01', repeat('x', @suffix_len)));
insert into t2_1025 values
(concat('1 - 02', repeat('x', @suffix_len)), concat('2 - 02', repeat('x', @suffix_len)));
insert into t2_1025 values
(concat('1 - 03', repeat('x', @suffix_len)), concat('2 - 03', repeat('x', @suffix_len)));
insert into t3_1025 values
(concat('1 - 01', repeat('x', @suffix_len)), concat('2 - 01', repeat('x', @suffix_len)));
insert into t3_1025 values
(concat('1 - 02', repeat('x', @suffix_len)), concat('2 - 02', repeat('x', @suffix_len)));
insert into t3_1025 values
(concat('1 - 03', repeat('x', @suffix_len)), concat('2 - 03', repeat('x', @suffix_len)));
insert into t3_1025 values
(concat('1 - 04', repeat('x', @suffix_len)), concat('2 - 04', repeat('x', @suffix_len)));
# single value transformer
explain extended select left(a1,7), left(a2,7)
from t1_1025
where a1 in (select b1 from t2_1025 where b1 > '0');
select left(a1,7), left(a2,7)
from t1_1025
where a1 in (select b1 from t2_1025 where b1 > '0');
# row value transformer
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');
select left(a1,7), left(a2,7)
from t1_1025
where (a1,a2) in (select b1, b2 from t2_1025 where b1 > '0');
# string function with a blob argument, the return type may be != blob
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');
select left(a1,7), left(a2,7)
from t1_1025
where a1 in (select substring(b1,1,1025) from t2_1025 where b1 > '0');
# group_concat with a blob argument - depends on
# the variable group_concat_max_len, and
# convert_blob_length == max_len*collation->mbmaxlen > CONVERT_IF_BIGGER_TO_BLOB
explain extended select left(a1,7), left(a2,7)
from t1_1025
where a1 in (select group_concat(b1) from t2_1025 group by b2);
select left(a1,7), left(a2,7)
from t1_1025
where a1 in (select group_concat(b1) from t2_1025 group by b2);
set @@group_concat_max_len = 256; # anything < (CONVERT_IF_BIGGER_TO_BLOB = 1025)
explain extended select left(a1,7), left(a2,7)
from t1_1025
where a1 in (select group_concat(b1) from t2_1025 group by b2);
select left(a1,7), left(a2,7)
from t1_1025
where a1 in (select group_concat(b1) from t2_1025 group by b2);
drop table t1_1025, t2_1025, t3_1025;
# test for BIT fields
create table t1bit (a1 bit(3), a2 bit(3));
create table t2bit (b1 bit(3), b2 bit(3));
insert into t1bit values (b'000', b'100');
insert into t1bit values (b'001', b'101');
insert into t1bit values (b'010', b'110');
insert into t2bit values (b'001', b'101');
insert into t2bit values (b'010', b'110');
insert into t2bit values (b'110', b'111');
set @@optimizer_switch='semijoin=off';
explain extended select bin(a1), bin(a2)
from t1bit
where (a1, a2) in (select b1, b2 from t2bit);
select bin(a1), bin(a2)
from t1bit
where (a1, a2) in (select b1, b2 from t2bit);
drop table t1bit, t2bit;
# test mixture of BIT and BLOB
create table t1bb (a1 bit(3), a2 blob(3));
create table t2bb (b1 bit(3), b2 blob(3));
insert into t1bb values (b'000', '100');
insert into t1bb values (b'001', '101');
insert into t1bb values (b'010', '110');
insert into t2bb values (b'001', '101');
insert into t2bb values (b'010', '110');
insert into t2bb values (b'110', '111');
explain extended select bin(a1), a2
from t1bb
where (a1, a2) in (select b1, b2 from t2bb);
select bin(a1), a2
from t1bb
where (a1, a2) in (select b1, b2 from t2bb);
drop table t1bb, t2bb;
drop table t1, t2, t3, t1i, t2i, t3i, columns;
/******************************************************************************
* Test the cache of the left operand of IN.
******************************************************************************/
set @@optimizer_switch='semijoin=off';
# Test that default values of Cached_item are not used for comparison
create table t1 (s1 int);
create table t2 (s2 int);
insert into t1 values (5),(1),(0);
insert into t2 values (0), (1);
select s2 from t2 where s2 in (select s1 from t1);
drop table t1, t2;
create table t1 (a int not null, b int not null);
create table t2 (c int not null, d int not null);
create table t3 (e int not null);
# the first outer row has no matching inner row
insert into t1 values (1,10);
insert into t1 values (1,20);
insert into t1 values (2,10);
insert into t1 values (2,20);
insert into t1 values (2,30);
insert into t1 values (3,20);
insert into t1 values (4,40);
insert into t2 values (2,10);
insert into t2 values (2,20);
insert into t2 values (2,40);
insert into t2 values (3,20);
insert into t2 values (4,10);
insert into t2 values (5,10);
insert into t3 values (10);
insert into t3 values (10);
insert into t3 values (20);
insert into t3 values (30);
explain extended
select a from t1 where a in (select c from t2 where d >= 20);
select a from t1 where a in (select c from t2 where d >= 20);
create index it1a on t1(a);
explain extended
select a from t1 where a in (select c from t2 where d >= 20);
select a from t1 where a in (select c from t2 where d >= 20);
# the first outer row has a matching inner row
insert into t2 values (1,10);
explain extended
select a from t1 where a in (select c from t2 where d >= 20);
select a from t1 where a in (select c from t2 where d >= 20);
# cacheing for IN predicates inside a having clause - here the cached
# items are changed to point to temporary tables.
explain extended
select a from t1 group by a having a in (select c from t2 where d >= 20);
select a from t1 group by a having a in (select c from t2 where d >= 20);
# create an index that can be used for the outer query GROUP BY
create index iab on t1(a, b);
explain extended
select a from t1 group by a having a in (select c from t2 where d >= 20);
select a from t1 group by a having a in (select c from t2 where d >= 20);
explain extended
select a from t1 group by a
having a in (select c from t2 where d >= some(select e from t3 where max(b)=e));
select a from t1 group by a
having a in (select c from t2 where d >= some(select e from t3 where max(b)=e));
explain extended
select a from t1
where a in (select c from t2 where d >= some(select e from t3 where b=e));
select a from t1
where a in (select c from t2 where d >= some(select e from t3 where b=e));
drop table t1, t2, t3;
#
# BUG#36133 "Assertion `exec_method != MATERIALIZATION || (exec_method == MATERIALIZATION &&"
#
create table t2 (a int, b int, key(a), key(b));
insert into t2 values (3,3),(3,3),(3,3);
select 1 from t2 where
t2.a > 1
or
t2.a = 3 and not t2.a not in (select t2.b from t2);
drop table t2;
#
# BUG#37896 Assertion on entry of Item_in_subselect::exec on subquery with AND NOT
#
create table t1 (a1 int key);
create table t2 (b1 int);
insert into t1 values (5);
# Query with group by, executed via materialization
explain select min(a1) from t1 where 7 in (select b1 from t2 group by b1);
select min(a1) from t1 where 7 in (select b1 from t2 group by b1);
# Query with group by, executed via IN=>EXISTS
set @@optimizer_switch='default,materialization=off';
explain select min(a1) from t1 where 7 in (select b1 from t2 group by b1);
select min(a1) from t1 where 7 in (select b1 from t2 group by b1);
# Executed with materialization
set @@optimizer_switch='default,semijoin=off';
explain select min(a1) from t1 where 7 in (select b1 from t2);
select min(a1) from t1 where 7 in (select b1 from t2);
# Executed with semi-join. Notice, this time we get a different result (NULL).
# This is the only correct result of all four queries. This difference is
# filed as BUG#40037.
set @@optimizer_switch='default,materialization=off';
explain select min(a1) from t1 where 7 in (select b1 from t2);
select min(a1) from t1 where 7 in (select b1 from t2);
drop table t1,t2;
#
# BUG#36752 "subquery materialization produces wrong results when comparing different types"
#
create table t1 (a char(2), b varchar(10));
insert into t1 values ('a', 'aaa');
insert into t1 values ('aa', 'aaaa');
set @@optimizer_switch='default,semijoin=off';
explain select a,b from t1 where b in (select a from t1);
select a,b from t1 where b in (select a from t1);
prepare st1 from "select a,b from t1 where b in (select a from t1)";
execute st1;
execute st1;
drop table t1;
#
# Bug #44303 Assertion failures in Field_new_decimal::store_decimal
# when executing materialized InsideOut semijoin
#
CREATE TABLE t1 (f1 INT, f2 DECIMAL(5,3)) ENGINE=MyISAM;
INSERT INTO t1 (f1, f2) VALUES (1, 1.789);
INSERT INTO t1 (f1, f2) VALUES (13, 1.454);
INSERT INTO t1 (f1, f2) VALUES (10, 1.668);
CREATE TABLE t2 LIKE t1;
INSERT INTO t2 VALUES (1, 1.789);
INSERT INTO t2 VALUES (13, 1.454);
SET @@optimizer_switch='default,semijoin=on,materialization=on';
EXPLAIN SELECT COUNT(*) FROM t1 WHERE (f1,f2) IN (SELECT f1,f2 FROM t2);
SELECT COUNT(*) FROM t1 WHERE (f1,f2) IN (SELECT f1,f2 FROM t2);
DROP TABLE t1, t2;
#
# BUG#46548 IN-subqueries return 0 rows with materialization=on
#
CREATE TABLE t1 (
pk int,
a varchar(1),
b varchar(4),
c varchar(4),
d varchar(4),
PRIMARY KEY (pk)
);
INSERT INTO t1 VALUES (1,'o','ffff','ffff','ffoo'),(2,'f','ffff','ffff','ffff');
CREATE TABLE t2 LIKE t1;
INSERT INTO t2 VALUES (1,'i','iiii','iiii','iiii'),(2,'f','ffff','ffff','ffff');
SET @@optimizer_switch='default,semijoin=on,materialization=on';
EXPLAIN SELECT pk FROM t1 WHERE (a) IN (SELECT a FROM t2 WHERE pk > 0);
SELECT pk FROM t1 WHERE (a) IN (SELECT a FROM t2 WHERE pk > 0);
SELECT pk FROM t1 WHERE (b,c,d) IN (SELECT b,c,d FROM t2 WHERE pk > 0);
DROP TABLE t1, t2;

11
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#
# Run subselect.test without semi-join optimization (test materialize)
#
show variables like 'optimizer_switch';
set optimizer_switch='materialization=off';
--source t/subselect.test
set optimizer_switch=default;
show variables like 'optimizer_switch';

11
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#
# Run subselect.test without semi-join optimization (test materialize)
#
show variables like 'optimizer_switch';
set optimizer_switch='materialization=off,semijoin=off';
--source t/subselect.test
set optimizer_switch=default;
show variables like 'optimizer_switch';

11
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#
# Run subselect.test without semi-join optimization (test materialize)
#
show variables like 'optimizer_switch';
set optimizer_switch='semijoin=off';
--source t/subselect.test
set optimizer_switch=default;
show variables like 'optimizer_switch';

94
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# Initialize tables for the test
--disable_warnings
drop table if exists x1;
drop table if exists x2;
--enable_warnings
create table x1(k int primary key, d1 int, d2 int);
create table x2(k int primary key, d1 int, d2 int);
insert into x1 values
(10, 10, 10),
(20, 20, 20),
(21, 20, null),
(30, null, 30),
(40, 40, 40);
insert into x2 values
(10, 10, 10),
(20, 20, 20),
(21, 20, null),
(30, null, 30);
# Test various IN and EXISTS queries with NULL values and UNKNOWN
# Q1 T=(10, 20) U=(21,30) F=(40)
select *
from x1
where (d1, d2) in (select d1, d2
from x2);
select *
from x1
where (d1, d2) in (select d1, d2
from x2) is true;
select *
from x1
where (d1, d2) in (select d1, d2
from x2) is false;
select *
from x1
where (d1, d2) in (select d1, d2
from x2) is unknown;
# Q2 T=(10, 20) U=(30) F=(21, 40)
select *
from x1
where d1 in (select d1
from x2
where x1.d2=x2.d2);
select *
from x1
where d1 in (select d1
from x2
where x1.d2=x2.d2) is true;
select *
from x1
where d1 in (select d1
from x2
where x1.d2=x2.d2) is false;
select *
from x1
where d1 in (select d1
from x2
where x1.d2=x2.d2) is unknown;
# Q3 T=(10, 20) U=() F=(21, 30, 40)
select *
from x1
where 1 in (select 1
from x2
where x1.d1=x2.d1 and x1.d2=x2.d2);
select *
from x1
where 1 in (select 1
from x2
where x1.d1=x2.d1 and x1.d2=x2.d2) is true;
select *
from x1
where 1 in (select 1
from x2
where x1.d1=x2.d1 and x1.d2=x2.d2) is false;
select *
from x1
where 1 in (select 1
from x2
where x1.d1=x2.d1 and x1.d2=x2.d2) is unknown;
# Q4 T=(10, 20) F=(21, 30, 40)
select *
from x1
where exists (select *
from x2
where x1.d1=x2.d1 and x1.d2=x2.d2);
drop table x1;
drop table x2;

683
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#
# Nested Loops semi-join subquery evaluation tests
#
--disable_warnings
drop table if exists t0, t1, t2, t10, t11, t12;
--enable_warnings
#
# 1. Subqueries that are converted into semi-joins
#
create table t0 (a int);
insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
create table t1(a int, b int);
insert into t1 values (0,0),(1,1),(2,2);
create table t2 as select * from t1;
create table t11(a int, b int);
create table t10 (pk int, a int, primary key(pk));
insert into t10 select a,a from t0;
create table t12 like t10;
insert into t12 select * from t10;
--echo Flattened because of dependency, t10=func(t1)
explain select * from t1 where a in (select pk from t10);
select * from t1 where a in (select pk from t10);
--echo A confluent case of dependency
explain select * from t1 where a in (select a from t10 where pk=12);
select * from t1 where a in (select a from t10 where pk=12);
explain select * from t1 where a in (select a from t10 where pk=9);
select * from t1 where a in (select a from t10 where pk=9);
--echo An empty table inside
explain select * from t1 where a in (select a from t11);
select * from t1 where a in (select a from t11);
explain select * from t1 where a in (select pk from t10) and b in (select pk from t10);
select * from t1 where a in (select pk from t10) and b in (select pk from t10);
--echo flattening a nested subquery
explain select * from t1 where a in (select pk from t10 where t10.a in (select pk from t12));
select * from t1 where a in (select pk from t10 where t10.a in (select pk from t12));
--echo flattening subquery w/ several tables
explain extended select * from t1 where a in (select t10.pk from t10, t12 where t12.pk=t10.a);
--echo subqueries within outer joins go into ON expr.
# TODO: psergey: check if case conversions like those are ok (it broke on windows)
--replace_result a A b B
explain extended
select * from t1 left join (t2 A, t2 B) on ( A.a= t1.a and B.a in (select pk from t10));
# TODO: psergey: check if case conversions like those are ok (it broke on windows)
--echo t2 should be wrapped into OJ-nest, so we have "t1 LJ (t2 J t10)"
--replace_result a A b B
explain extended
select * from t1 left join t2 on (t2.a= t1.a and t2.a in (select pk from t10));
--echo we shouldn't flatten if we're going to get a join of > MAX_TABLES.
explain select * from
t1 s00, t1 s01, t1 s02, t1 s03, t1 s04,t1 s05,t1 s06,t1 s07,t1 s08,t1 s09,
t1 s10, t1 s11, t1 s12, t1 s13, t1 s14,t1 s15,t1 s16,t1 s17,t1 s18,t1 s19,
t1 s20, t1 s21, t1 s22, t1 s23, t1 s24,t1 s25,t1 s26,t1 s27,t1 s28,t1 s29,
t1 s30, t1 s31, t1 s32, t1 s33, t1 s34,t1 s35,t1 s36,t1 s37,t1 s38,t1 s39,
t1 s40, t1 s41, t1 s42, t1 s43, t1 s44,t1 s45,t1 s46,t1 s47,t1 s48,t1 s49
where
s00.a in (
select m00.a from
t1 m00, t1 m01, t1 m02, t1 m03, t1 m04,t1 m05,t1 m06,t1 m07,t1 m08,t1 m09,
t1 m10, t1 m11, t1 m12, t1 m13, t1 m14,t1 m15,t1 m16,t1 m17,t1 m18,t1 m19
);
select * from
t1 left join t2 on (t2.a= t1.a and t2.a in (select pk from t10))
where t1.a < 5;
#
# Prepared statements
#
prepare s1 from
' select * from
t1 left join t2 on (t2.a= t1.a and t2.a in (select pk from t10))
where t1.a < 5';
execute s1;
execute s1;
# Try I2O orders
insert into t1 select (A.a + 10 * B.a),1 from t0 A, t0 B;
explain extended select * from t1 where a in (select pk from t10 where pk<3);
--echo
--echo BUG#37120 optimizer_switch allowable values not according to specification
--echo
select @@optimizer_switch;
set optimizer_switch='default,materialization=off';
select @@optimizer_switch;
set optimizer_switch='default,semijoin=off';
select @@optimizer_switch;
set optimizer_switch='default,loosescan=off';
select @@optimizer_switch;
set optimizer_switch='default,semijoin=off,materialization=off';
select @@optimizer_switch;
set optimizer_switch='default,materialization=off,semijoin=off';
select @@optimizer_switch;
set optimizer_switch='default,semijoin=off,materialization=off,loosescan=off';
select @@optimizer_switch;
set optimizer_switch='default,semijoin=off,loosescan=off';
select @@optimizer_switch;
set optimizer_switch='default,materialization=off,loosescan=off';
select @@optimizer_switch;
set optimizer_switch=default;
drop table t0, t1, t2;
drop table t10, t11, t12;
--echo
--echo Bug#37899: Wrongly checked optimization prerequisite caused failed
--echo assertion.
--echo
CREATE TABLE t1 (
`pk` int(11),
`varchar_nokey` varchar(5)
);
INSERT INTO t1 VALUES
(1,'qk'),(2,'j'),(3,'aew');
SELECT *
FROM t1
WHERE varchar_nokey IN (
SELECT
varchar_nokey
FROM
t1
) XOR pk = 30;
drop table t1;
--echo #
--echo # BUG#41842: Semi-join materialization strategy crashes when the upper query has HAVING
--echo #
CREATE TABLE t1 (
pk int(11) NOT NULL AUTO_INCREMENT,
int_nokey int(11) NOT NULL,
time_key time NOT NULL,
datetime_key datetime NOT NULL,
datetime_nokey datetime NOT NULL,
varchar_key varchar(1) NOT NULL,
varchar_nokey varchar(1) NOT NULL,
PRIMARY KEY (pk),
KEY time_key (time_key),
KEY datetime_key (datetime_key),
KEY varchar_key (varchar_key)
);
INSERT INTO t1 VALUES
(1,0, '00:16:10','2008-09-03 14:25:40','2008-09-03 14:25:40','h','h'),
(2,7, '00:00:00','2001-01-13 00:00:00','2001-01-13 00:00:00','',''),
(3,0, '00:00:00','0000-00-00 00:00:00','0000-00-00 00:00:00','x','x'),
(4,2, '16:29:24','2000-10-16 01:39:08','2000-10-16 01:39:08','w','w'),
(5,1, '09:23:32','0000-00-00 00:00:00','0000-00-00 00:00:00','p','p'),
(6,3, '00:00:00','2007-12-02 00:00:00','2007-12-02 00:00:00','o','o'),
(7,3, '00:00:00','2008-09-11 00:00:00','2008-09-11 00:00:00','',''),
(8,0, '13:59:04','0000-00-00 00:00:00','0000-00-00 00:00:00','s','s'),
(9,7, '09:01:06','0000-00-00 00:00:00','0000-00-00 00:00:00','d','d'),
(10,5,'00:00:00','0000-00-00 00:00:00','0000-00-00 00:00:00','n','n'),
(11,0,'21:06:46','0000-00-00 00:00:00','0000-00-00 00:00:00','o','o'),
(12,2,'00:00:00','0000-00-00 00:00:00','0000-00-00 00:00:00','',''),
(13,6,'14:45:34','2003-07-28 02:34:08','2003-07-28 02:34:08','w','w'),
(14,1,'15:04:12','0000-00-00 00:00:00','0000-00-00 00:00:00','o','o'),
(15,0,'00:00:00','0000-00-00 00:00:00','0000-00-00 00:00:00','x','x'),
(16,0,'15:55:23','2004-03-17 00:32:27','2004-03-17 00:32:27','p','p'),
(17,1,'16:30:00','2004-12-27 19:20:00','2004-12-27 19:20:00','d','d'),
(18,0,'00:00:00','0000-00-00 00:00:00','0000-00-00 00:00:00','h','h'),
(19,0,'14:13:26','2008-11-09 05:53:48','2008-11-09 05:53:48','o','o'),
(20,0,'00:00:00','2009-10-11 06:58:04','2009-10-11 06:58:04','k','k');
CREATE TABLE t2 (
pk int(11) NOT NULL AUTO_INCREMENT,
int_nokey int(11) NOT NULL,
time_key time NOT NULL,
datetime_key datetime NOT NULL,
datetime_nokey datetime NOT NULL,
varchar_key varchar(1) NOT NULL,
varchar_nokey varchar(1) NOT NULL,
PRIMARY KEY (pk),
KEY time_key (time_key),
KEY datetime_key (datetime_key),
KEY varchar_key (varchar_key)
);
INSERT INTO t2 VALUES
(10,0,'19:39:13','0000-00-00 00:00:00','0000-00-00 00:00:00','g','g'),
(11,8,'03:43:53','0000-00-00 00:00:00','0000-00-00 00:00:00','b','b');
SELECT OUTR.datetime_nokey AS X FROM t1 AS OUTR
WHERE
OUTR.varchar_nokey IN (SELECT
INNR . varchar_nokey AS Y
FROM t2 AS INNR
WHERE
INNR . datetime_key >= INNR . time_key OR
INNR . pk = INNR . int_nokey
)
AND OUTR . varchar_nokey <= 'w'
HAVING X > '2012-12-12';
drop table t1, t2;
--echo #
--echo # Bug#45191: Incorrectly initialized semi-join led to a wrong result.
--echo #
CREATE TABLE STAFF (EMPNUM CHAR(3) NOT NULL,
EMPNAME CHAR(20), GRADE DECIMAL(4), CITY CHAR(15));
CREATE TABLE PROJ (PNUM CHAR(3) NOT NULL,
PNAME CHAR(20), PTYPE CHAR(6),
BUDGET DECIMAL(9),
CITY CHAR(15));
CREATE TABLE WORKS (EMPNUM CHAR(3) NOT NULL,
PNUM CHAR(3) NOT NULL, HOURS DECIMAL(5));
INSERT INTO STAFF VALUES ('E1','Alice',12,'Deale');
INSERT INTO STAFF VALUES ('E2','Betty',10,'Vienna');
INSERT INTO STAFF VALUES ('E3','Carmen',13,'Vienna');
INSERT INTO STAFF VALUES ('E4','Don',12,'Deale');
INSERT INTO STAFF VALUES ('E5','Ed',13,'Akron');
INSERT INTO PROJ VALUES ('P1','MXSS','Design',10000,'Deale');
INSERT INTO PROJ VALUES ('P2','CALM','Code',30000,'Vienna');
INSERT INTO PROJ VALUES ('P3','SDP','Test',30000,'Tampa');
INSERT INTO PROJ VALUES ('P4','SDP','Design',20000,'Deale');
INSERT INTO PROJ VALUES ('P5','IRM','Test',10000,'Vienna');
INSERT INTO PROJ VALUES ('P6','PAYR','Design',50000,'Deale');
INSERT INTO WORKS VALUES ('E1','P1',40);
INSERT INTO WORKS VALUES ('E1','P2',20);
INSERT INTO WORKS VALUES ('E1','P3',80);
INSERT INTO WORKS VALUES ('E1','P4',20);
INSERT INTO WORKS VALUES ('E1','P5',12);
INSERT INTO WORKS VALUES ('E1','P6',12);
INSERT INTO WORKS VALUES ('E2','P1',40);
INSERT INTO WORKS VALUES ('E2','P2',80);
INSERT INTO WORKS VALUES ('E3','P2',20);
INSERT INTO WORKS VALUES ('E4','P2',20);
INSERT INTO WORKS VALUES ('E4','P4',40);
INSERT INTO WORKS VALUES ('E4','P5',80);
set optimizer_switch='default,materialization=off';
explain SELECT EMPNUM, EMPNAME
FROM STAFF
WHERE EMPNUM IN
(SELECT EMPNUM FROM WORKS
WHERE PNUM IN
(SELECT PNUM FROM PROJ));
SELECT EMPNUM, EMPNAME
FROM STAFF
WHERE EMPNUM IN
(SELECT EMPNUM FROM WORKS
WHERE PNUM IN
(SELECT PNUM FROM PROJ));
set optimizer_switch='default';
drop table STAFF,WORKS,PROJ;
--echo # End of bug#45191
--echo #
--echo # Bug#46550 Azalea returning duplicate results for some IN subqueries
--echo # w/ semijoin=on
--echo #
--disable_warnings
DROP TABLE IF EXISTS t0, t1, t2;
--enable_warnings
CREATE TABLE t0 (
int_key int(11) DEFAULT NULL,
varchar_key varchar(1) DEFAULT NULL,
varchar_nokey varchar(1) DEFAULT NULL,
KEY int_key (int_key),
KEY varchar_key (varchar_key,int_key)
);
INSERT INTO t0 VALUES
(1,'m','m'),
(40,'h','h'),
(1,'r','r'),
(1,'h','h'),
(9,'x','x'),
(NULL,'q','q'),
(NULL,'k','k'),
(7,'l','l'),
(182,'k','k'),
(202,'a','a'),
(7,'x','x'),
(6,'j','j'),
(119,'z','z'),
(4,'d','d'),
(5,'h','h'),
(1,'u','u'),
(3,'q','q'),
(7,'a','a'),
(3,'e','e'),
(6,'l','l');
CREATE TABLE t1 (
int_key int(11) DEFAULT NULL,
varchar_key varchar(1) DEFAULT NULL,
varchar_nokey varchar(1) DEFAULT NULL,
KEY int_key (int_key),
KEY varchar_key (varchar_key,int_key)
);
INSERT INTO t1 VALUES (7,NULL,NULL),(4,'x','x');
CREATE TABLE t2 (
int_key int(11) DEFAULT NULL,
varchar_key varchar(1) DEFAULT NULL,
varchar_nokey varchar(1) DEFAULT NULL,
KEY int_key (int_key),
KEY varchar_key (varchar_key,int_key)
);
INSERT INTO t2 VALUES (123,NULL,NULL);
SELECT int_key
FROM t0
WHERE varchar_nokey IN (
SELECT t1 .varchar_key from t1
);
SELECT t0.int_key
FROM t0
WHERE t0.varchar_nokey IN (
SELECT t1_1 .varchar_key
FROM t1 AS t1_1 JOIN t1 AS t1_2 ON t1_1 .int_key
);
SELECT t0.int_key
FROM t0, t2
WHERE t0.varchar_nokey IN (
SELECT t1_1 .varchar_key
FROM t1 AS t1_1 JOIN t1 AS t1_2 ON t1_1 .int_key
);
DROP TABLE t0, t1, t2;
--echo # End of bug#46550
--echo #
--echo # Bug #46744 Crash in optimize_semijoin_nests on empty view
--echo # with limit and procedure.
--echo #
--disable_warnings
DROP TABLE IF EXISTS t1, t2;
DROP VIEW IF EXISTS v1;
DROP PROCEDURE IF EXISTS p1;
--enable_warnings
CREATE TABLE t1 ( f1 int );
CREATE TABLE t2 ( f1 int );
insert into t2 values (5), (7);
CREATE OR REPLACE VIEW v1 AS SELECT * FROM t1 LIMIT 2;
create procedure p1()
select COUNT(*)
FROM v1 WHERE f1 IN
(SELECT f1 FROM t2 WHERE f1 = ANY (SELECT f1 FROM v1));
SET SESSION optimizer_switch = 'semijoin=on';
CALL p1();
SET SESSION optimizer_switch = 'semijoin=off';
CALL p1();
drop table t1, t2;
drop view v1;
drop procedure p1;
set SESSION optimizer_switch='default';
--echo # End of bug#46744
--echo
--echo Bug#46797 "Crash in fix_semijoin_strategies_for_picked_join_order
--echo with semijoin=on"
--echo
CREATE TABLE t1 (
varchar_key varchar(1) DEFAULT NULL,
KEY varchar_key (varchar_key)
);
CREATE TABLE t2 (
varchar_key varchar(1) DEFAULT NULL,
KEY varchar_key (varchar_key)
);
INSERT INTO t2 VALUES
(NULL),(NULL),(NULL),(NULL),('a'),('a'),('a'),('b'),('b'),('b'),('b'),('c'),
('c'),('c'),('c'),('c'),('c'),('c'),('d'),('d'),('d'),('d'),('d'),('d'),('e'),
('e'),('e'),('e'),('e'),('e'),('f'),('f'),('f'),('g'),('g'),('h'),('h'),('h'),
('h'),('i'),('j'),('j'),('j'),('k'),('k'),('l'),('l'),('m'),('m'),('m'),('m'),
('n'),('n'),('n'),('o'),('o'),('o'),('p'),('p'),('p'),('q'),('q'),('q'),('r'),
('r'),('r'),('r'),('s'),('s'),('s'),('s'),('t'),('t'),('t'),('t'),('u'),('u'),
('u'),('u'),('v'),('v'),('v'),('v'),('w'),('w'),('w'),('w'),('w'),('w'),('x'),
('x'),('x'),('y'),('y'),('y'),('y'),('z'),('z'),('z'),('z');
CREATE TABLE t3 (
varchar_key varchar(1) DEFAULT NULL,
KEY varchar_key (varchar_key)
) ENGINE=MyISAM DEFAULT CHARSET=latin1;
INSERT INTO t3 VALUES
(NULL),('c'),('d'),('e'),('f'),('h'),('j'),('k'),('k'),('m'),('m'),('m'),
('n'),('o'),('r'),('t'),('t'),('u'),('w'),('y');
SELECT varchar_key FROM t3
WHERE (SELECT varchar_key FROM t3
WHERE (varchar_key,varchar_key)
IN (SELECT t1.varchar_key, t2 .varchar_key
FROM t1 RIGHT JOIN t2 ON t1.varchar_key
)
);
DROP TABLE t1, t2, t3;
--echo #
--echo # Bug#46556 Returning incorrect, empty results for some IN subqueries
--echo # w/semijoin=on
--echo #
CREATE TABLE t0 (
pk INTEGER,
vkey VARCHAR(1),
vnokey VARCHAR(1),
PRIMARY KEY (pk),
KEY vkey(vkey)
);
INSERT INTO t0
VALUES (1,'g','g'), (2,'v','v'), (3,'t','t'), (4,'u','u'), (5,'n','n');
EXPLAIN EXTENDED SELECT vkey FROM t0 WHERE pk IN
(SELECT t1.pk FROM t0 t1 JOIN t0 t2 ON t2.vkey = t1.vnokey);
SELECT vkey FROM t0 WHERE pk IN
(SELECT t1.pk FROM t0 t1 JOIN t0 t2 ON t2.vkey = t1.vnokey);
DROP TABLE t0;
--echo # End of bug#46556
--echo
--echo Bug #48073 Subquery on char columns from view crashes Mysql
--echo
--disable_warnings
DROP TABLE IF EXISTS t1, t2;
DROP VIEW IF EXISTS v1;
--enable_warnings
CREATE TABLE t1 (
city VARCHAR(50) NOT NULL,
country_id SMALLINT UNSIGNED NOT NULL
);
INSERT INTO t1 VALUES
('Batna',2),
('Bchar',2),
('Skikda',2),
('Tafuna',3),
('Algeria',2) ;
CREATE TABLE t2 (
country_id SMALLINT UNSIGNED NOT NULL,
country VARCHAR(50) NOT NULL
);
INSERT INTO t2 VALUES
(2,'Algeria'),
(3,'American Samoa') ;
CREATE VIEW v1 AS
SELECT country_id, country
FROM t2
WHERE LEFT(country,1) = "A"
;
SELECT city, country_id
FROM t1
WHERE city IN (
SELECT country
FROM t2
WHERE LEFT(country, 1) = "A"
);
SELECT city, country_id
FROM t1
WHERE city IN (
SELECT country
FROM v1
);
drop table t1, t2;
drop view v1;
--echo # End of bug#48073
--echo
--echo Bug#48834: Procedure with view + subquery + semijoin=on
--echo crashes on second call.
--echo
SET SESSION optimizer_switch ='semijoin=on';
CREATE TABLE t1 ( t1field integer, primary key (t1field));
CREATE TABLE t2 ( t2field integer, primary key (t2field));
CREATE VIEW v1 AS
SELECT t1field as v1field
FROM t1 A
WHERE A.t1field IN (SELECT t1field FROM t2 );
CREATE VIEW v2 AS
SELECT t2field as v2field
FROM t2 A
WHERE A.t2field IN (SELECT t2field FROM t2 );
DELIMITER |;
CREATE PROCEDURE p1 ()
BEGIN
SELECT v1field
FROM v1
WHERE v1field IN ( SELECT v2field as vf_inner FROM v2 );
END|
DELIMITER ;|
INSERT INTO t1 VALUES (1),(2),(3);
INSERT INTO t2 VALUES (2),(3),(4);
CALL p1;
CALL p1;
DROP TABLE t1,t2;
DROP VIEW v1,v2;
DROP PROCEDURE p1;
set SESSION optimizer_switch='default';
--echo # End of BUG#48834
--echo
--echo Bug#49097 subquery with view generates wrong result with
--echo non-prepared statement
--echo
--disable_warnings
DROP TABLE IF EXISTS t1, t2;
DROP VIEW IF EXISTS v1;
--enable_warnings
CREATE TABLE t1 (
city VARCHAR(50) NOT NULL,
country_id SMALLINT UNSIGNED NOT NULL
);
INSERT INTO t1 VALUES
('Batna',2),
('Bchar',2),
('Skikda',2),
('Tafuna',3),
('Algeria',2) ;
CREATE TABLE t2 (
country_id SMALLINT UNSIGNED NOT NULL,
country VARCHAR(50) NOT NULL
);
INSERT INTO t2 VALUES
(2,'Algeria'),
(3,'XAmerican Samoa') ;
CREATE VIEW v1 AS
SELECT country_id, country
FROM t2
WHERE LEFT(country,1) = "A"
;
SELECT city, country_id
FROM t1
WHERE country_id IN (
SELECT country_id
FROM t2
WHERE LEFT(country,1) = "A"
);
SELECT city, country_id
FROM t1
WHERE country_id IN (
SELECT country_id
FROM v1
);
PREPARE stmt FROM
"
SELECT city, country_id
FROM t1
WHERE country_id IN (
SELECT country_id
FROM v1
);
";
execute stmt;
deallocate prepare stmt;
drop table t1, t2;
drop view v1;
--echo # End of Bug#49097
--echo #
--echo # BUG#38075: Wrong result: rows matching a subquery with outer join not returned
--echo #
--disable_warnings
DROP TABLE IF EXISTS ot1, it1, it2;
--enable_warnings
CREATE TABLE it2 (
int_key int(11) NOT NULL,
datetime_key datetime NOT NULL,
KEY int_key (int_key),
KEY datetime_key (datetime_key)
);
INSERT INTO it2 VALUES
(5,'2002-04-10 14:25:30'), (0,'0000-00-00 00:00:00'),
(0,'2006-09-14 04:01:02'), (4,'0000-00-00 00:00:00'),
(8,'0000-00-00 00:00:00'), (5,'0000-00-00 00:00:00'),
(9,'0000-00-00 00:00:00'), (8,'2007-04-01 11:04:17'),
(1,'0000-00-00 00:00:00'), (7,'2009-01-12 00:00:00'),
(0,'2009-06-05 00:00:00'), (3,'2006-02-14 18:06:35'),
(5,'2006-02-21 07:08:16'), (0,'0000-00-00 00:00:00'),
(7,'0000-00-00 00:00:00'), (0,'0000-00-00 00:00:00'),
(0,'2007-02-13 00:00:00'), (1,'0000-00-00 00:00:00'),
(0,'0000-00-00 00:00:00'), (1,'2003-08-11 00:00:00');
CREATE TABLE ot1 (
int_nokey int(11) NOT NULL,
int_key int(11) NOT NULL,
KEY int_key (int_key)
);
INSERT INTO ot1 VALUES
(5,0), (3,0), (0,2), (3,0), (1,3), (0,0), (1,7), (7,0), (1,7), (0,7),
(0,9), (8,2), (4,4), (9,3), (0,9), (2,5), (0,5), (8,0), (5,8), (1,5);
CREATE TABLE it1 (
int_nokey int(11) NOT NULL,
int_key int(11) NOT NULL,
KEY int_key (int_key)
);
INSERT INTO it1 VALUES
(9,5), (0,4);
SELECT int_key FROM ot1
WHERE int_nokey IN (SELECT it2.int_key
FROM it1 LEFT JOIN it2 ON it2.datetime_key);
EXPLAIN
SELECT int_key FROM ot1
WHERE int_nokey IN (SELECT it2.int_key
FROM it1 LEFT JOIN it2 ON it2.datetime_key);
DROP TABLE ot1, it1, it2;
--echo # End of BUG#38075

904
mysql-test/t/subselect_sj2.test Normal file
View File

@@ -0,0 +1,904 @@
#
# DuplicateElimination strategy test
#
--source include/have_innodb.inc
--disable_warnings
drop table if exists t0, t1, t2, t3;
drop view if exists v1;
--enable_warnings
create table t0 (a int);
insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
# First test simple cases: I20 order, no join buffering.
create table t1 (
a int,
b int
);
insert into t1 values (1,1),(1,1),(2,2);
create table t2 (
a int,
b int,
key(b)
);
insert into t2 select a, a/2 from t0;
select * from t1;
select * from t2;
explain select * from t2 where b in (select a from t1);
select * from t2 where b in (select a from t1);
# Try an InnoDB table with very long rowid
create table t3 (
a int,
b int,
key(b),
pk1 char(200), pk2 char(200), pk3 char(200),
primary key(pk1, pk2, pk3)
) engine=innodb;
insert into t3 select a,a, a,a,a from t0;
explain select * from t3 where b in (select a from t1);
select * from t3 where b in (select a from t1);
# Test overflow to MyISAM:
set @save_max_heap_table_size= @@max_heap_table_size;
set max_heap_table_size=16384;
set @save_join_buffer_size = @@join_buffer_size;
set join_buffer_size= 8000;
drop table t3;
create table t3 (
a int,
b int,
key(b),
pk1 char(200), pk2 char(200),
primary key(pk1, pk2)
) engine=innodb;
insert into t3 select
A.a + 10*B.a, A.a + 10*B.a, A.a + 10*B.a, A.a + 10*B.a
from t0 A, t0 B where B.a <5;
explain select * from t3 where b in (select a from t0);
# Because of BUG#40154, run the next select w/o index condition pushdown:
set @save_ecp= @@engine_condition_pushdown;
set engine_condition_pushdown=0;
select * from t3 where b in (select A.a+B.a from t0 A, t0 B where B.a<5);
set engine_condition_pushdown=@save_ecp;
set join_buffer_size= @save_join_buffer_size;
set max_heap_table_size= @save_max_heap_table_size;
# O2I join orders, with shortcutting:
explain select * from t1 where a in (select b from t2);
select * from t1;
select * from t1 where a in (select b from t2);
drop table t1, t2, t3;
# (no need for anything in range/index_merge/DS-MRR)
#
# Test join buffering
#
set @save_join_buffer_size = @@join_buffer_size;
set join_buffer_size= 8000;
create table t1 (a int, filler1 binary(200), filler2 binary(200));
insert into t1 select a, 'filler123456', 'filler123456' from t0;
insert into t1 select a+10, 'filler123456', 'filler123456' from t0;
create table t2 as select * from t1;
insert into t1 select a+20, 'filler123456', 'filler123456' from t0;
insert into t1 values (2, 'duplicate ok', 'duplicate ok');
insert into t1 values (18, 'duplicate ok', 'duplicate ok');
insert into t2 values (3, 'duplicate ok', 'duplicate ok');
insert into t2 values (19, 'duplicate ok', 'duplicate ok');
explain select
a, mid(filler1, 1,10), length(filler1)=length(filler2) as Z
from t1 ot where a in (select a from t2 it);
select
a, mid(filler1, 1,10), length(filler1)=length(filler2) as Z
from t1 ot where a in (select a from t2 it);
explain select
a, mid(filler1, 1,10), length(filler1)=length(filler2)
from t2 ot where a in (select a from t1 it);
select
a, mid(filler1, 1,10), length(filler1)=length(filler2)
from t2 ot where a in (select a from t1 it);
# Now let the buffer overfill:
insert into t1 select a+20, 'filler123456', 'filler123456' from t0;
insert into t1 select a+20, 'filler123456', 'filler123456' from t0;
explain select
a, mid(filler1, 1,10), length(filler1)=length(filler2) as Z
from t1 ot where a in (select a from t2 it);
select
a, mid(filler1, 1,10), length(filler1)=length(filler2) as Z
from t1 ot where a in (select a from t2 it);
explain select
a, mid(filler1, 1,10), length(filler1)=length(filler2)
from t2 ot where a in (select a from t1 it);
select
a, mid(filler1, 1,10), length(filler1)=length(filler2)
from t2 ot where a in (select a from t1 it);
drop table t1, t2;
# Check ref access to tables inside the OJ nest inside the SJ nest
create table t1 (a int, b int, key(a));
create table t2 (a int, b int, key(a));
create table t3 (a int, b int, key(a));
insert into t1 select a,a from t0;
insert into t2 select a,a from t0;
insert into t3 select a,a from t0;
--echo t2 and t3 must be use 'ref', not 'ALL':
explain select *
from t0 where a in
(select t2.a+t3.a from t1 left join (t2 join t3) on t2.a=t1.a and t3.a=t1.a);
drop table t0, t1,t2,t3;
#
# Bug #27348: Assertion abort for a query with two subqueries to be flattened
# Bug #35674: Range optimizer ignores conditions on inner tables in semi-join IN subqueries
#
CREATE TABLE t1 (
ID int(11) NOT NULL auto_increment,
Name char(35) NOT NULL default '',
Country char(3) NOT NULL default '',
Population int(11) NOT NULL default '0',
PRIMARY KEY (ID),
INDEX (Population),
INDEX (Country)
);
CREATE TABLE t2 (
Code char(3) NOT NULL default '',
Name char(52) NOT NULL default '',
SurfaceArea float(10,2) NOT NULL default '0.00',
Population int(11) NOT NULL default '0',
Capital int(11) default NULL,
PRIMARY KEY (Code),
UNIQUE INDEX (Name),
INDEX (Population)
);
CREATE TABLE t3 (
Country char(3) NOT NULL default '',
Language char(30) NOT NULL default '',
Percentage float(3,1) NOT NULL default '0.0',
PRIMARY KEY (Country, Language),
INDEX (Percentage)
);
--disable_query_log
INSERT INTO t1 VALUES
(1,'Kabul','AFG',1780000),(2,'Qandahar','AFG',237500),
(3,'Herat','AFG',186800),(4,'Mazar-e-Sharif','AFG',127800),
(5,'Amsterdam','NLD',731200),(6,'Rotterdam','NLD',593321),
(7,'Haag','NLD',440900),(8,'Utrecht','NLD',234323),
(9,'Eindhoven','NLD',201843),(10,'Tilburg','NLD',193238),
(11,'Groningen','NLD',172701),(12,'Breda','NLD',160398),
(13,'Apeldoorn','NLD',153491),(14,'Nijmegen','NLD',152463),
(15,'Enschede','NLD',149544),(16,'Haarlem','NLD',148772),
(17,'Almere','NLD',142465),(18,'Arnhem','NLD',138020),
(19,'Zaanstad','NLD',135621),(20,'´s-Hertogenbosch','NLD',129170),
(21,'Amersfoort','NLD',126270),(22,'Maastricht','NLD',122087),
(23,'Dordrecht','NLD',119811),(24,'Leiden','NLD',117196),
(25,'Haarlemmermeer','NLD',110722),(26,'Zoetermeer','NLD',110214),
(27,'Emmen','NLD',105853),(28,'Zwolle','NLD',105819),
(29,'Ede','NLD',101574),(30,'Delft','NLD',95268);
INSERT INTO t2 VALUES
('AFG','Afghanistan',652090.00,22720000,1),
('NLD','Netherlands',41526.00,15864000,5),
('ANT','Netherlands Antilles',800.00,217000,33),
('ALB','Albania',28748.00,3401200,34),
('DZA','Algeria',2381741.00,31471000,35),
('ASM','American Samoa',199.00,68000,54),
('AND','Andorra',468.00,78000,55),
('AGO','Angola',1246700.00,12878000,56),
('AIA','Anguilla',96.00,8000,62),
('ATG','Antigua and Barbuda',442.00,68000,63),
('ARE','United Arab Emirates',83600.00,2441000,65),
('ARG','Argentina',2780400.00,37032000,69),
('ARM','Armenia',29800.00,3520000,126),
('ABW','Aruba',193.00,103000,129),
('AUS','Australia',7741220.00,18886000,135),
('AZE','Azerbaijan',86600.00,7734000,144);
INSERT INTO t3 VALUES
('AFG','Pashto',52.4),('NLD','Dutch',95.6),
('ANT','Papiamento',86.2),('ALB','Albaniana',97.9),
('DZA','Arabic',86.0),('ASM','Samoan',90.6),
('AND','Spanish',44.6),('AGO','Ovimbundu',37.2),
('AIA','English',0.0),('ATG','Creole English',95.7),
('ARE','Arabic',42.0),('ARG','Spanish',96.8),
('ARM','Armenian',93.4),('ABW','Papiamento',76.7),
('AUS','English',81.2),('AZE','Azerbaijani',89.0),
('BHS','Creole English',89.7),('BHR','Arabic',67.7),
('BGD','Bengali',97.7),('BRB','Bajan',95.1),
('BEL','Dutch',59.2),('BLZ','English',50.8);
--enable_query_log
EXPLAIN
SELECT Name FROM t2
WHERE t2.Code IN (SELECT Country FROM t1 WHERE Population > 5000000)
AND
t2.Code IN (SELECT Country FROM t3
WHERE Language='English' AND Percentage > 10 AND
t2.Population > 100000);
DROP TABLE t1,t2,t3;
# BUG#30993:
CREATE TABLE t1 (
Code char(3) NOT NULL DEFAULT '',
Name char(52) NOT NULL DEFAULT '',
Continent enum('Asia','Europe','North America','Africa','Oceania','Antarctica','South America') NOT NULL DEFAULT 'Asia',
Region char(26) NOT NULL DEFAULT '',
SurfaceArea float(10,2) NOT NULL DEFAULT '0.00',
IndepYear smallint(6) DEFAULT NULL,
Population int(11) NOT NULL DEFAULT '0',
LifeExpectancy float(3,1) DEFAULT NULL,
GNP float(10,2) DEFAULT NULL,
GNPOld float(10,2) DEFAULT NULL,
LocalName char(45) NOT NULL DEFAULT '',
GovernmentForm char(45) NOT NULL DEFAULT '',
HeadOfState char(60) DEFAULT NULL,
Capital int(11) DEFAULT NULL,
Code2 char(2) NOT NULL DEFAULT '',
PRIMARY KEY (Code)
);
CREATE TABLE t2 (
ID int(11) NOT NULL AUTO_INCREMENT,
Name char(35) NOT NULL DEFAULT '',
CountryCode char(3) NOT NULL DEFAULT '',
District char(20) NOT NULL DEFAULT '',
Population int(11) NOT NULL DEFAULT '0',
PRIMARY KEY (ID),
KEY CountryCode (CountryCode)
);
--echo Fill the table with test data
--disable_query_log
insert into t2 (ID, Name, CountryCode, Population) values
(1,'Kabul','AFG',1780000), (2,'Qandahar','AFG',237500), (3,'Herat','AFG',186800),
(4,'Mazar-e-Sharif','AFG',127800), (33,'Willemstad','ANT',2345), (34,'Tirana','ALB',270000),
(55,'Andorra la Vella','AND',21189), (61,'South Hill','AIA',961), (62,'The Valley','AIA',595),
(63,'Saint John<68>s','ATG',24000), (64,'Dubai','ARE',669181), (65,'Abu Dhabi','ARE',398695),
(66,'Sharja','ARE',320095), (67,'al-Ayn','ARE',225970), (68,'Ajman','ARE',114395),
(126,'Yerevan','ARM',1248700), (127,'Gjumri','ARM',211700), (128,'Vanadzor','ARM',172700),
(129,'Oranjestad','ABW',29034), (144,'Baku','AZE',1787800), (145,'G<>nc<6E>','AZE',299300),
(146,'Sumqayit','AZE',283000), (147,'Ming<6E><67>evir','AZE',93900), (148,'Nassau','BHS',172000),
(149,'al-Manama','BHR',148000), (150,'Dhaka','BGD',3612850), (151,'Chittagong','BGD',1392860),
(152,'Khulna','BGD',663340), (153,'Rajshahi','BGD',294056), (154,'Narayanganj','BGD',202134),
(155,'Rangpur','BGD',191398), (156,'Mymensingh','BGD',188713), (157,'Barisal','BGD',170232),
(158,'Tungi','BGD',168702), (159,'Jessore','BGD',139710), (160,'Comilla','BGD',135313),
(161,'Nawabganj','BGD',130577), (162,'Dinajpur','BGD',127815), (163,'Bogra','BGD',120170),
(164,'Sylhet','BGD',117396), (165,'Brahmanbaria','BGD',109032), (166,'Tangail','BGD',106004),
(167,'Jamalpur','BGD',103556), (168,'Pabna','BGD',103277), (169,'Naogaon','BGD',101266),
(170,'Sirajganj','BGD',99669), (171,'Narsinghdi','BGD',98342), (172,'Saidpur','BGD',96777),
(173,'Gazipur','BGD',96717), (174,'Bridgetown','BRB',6070), (175,'Antwerpen','BEL',446525),
(176,'Gent','BEL',224180), (177,'Charleroi','BEL',200827), (178,'Li<4C>ge','BEL',185639),
(179,'Bruxelles [Brussel]','BEL',133859), (180,'Brugge','BEL',116246), (181,'Schaerbeek','BEL',105692),
(182,'Namur','BEL',105419), (183,'Mons','BEL',90935), (184,'Belize City','BLZ',55810),
(185,'Belmopan','BLZ',7105), (190,'Saint George','BMU',1800), (191,'Hamilton','BMU',1200),
(192,'Thimphu','BTN',22000), (201,'Sarajevo','BIH',360000), (202,'Banja Luka','BIH',143079),
(203,'Zenica','BIH',96027), (538,'Bandar Seri Begawan','BRN',21484), (539,'Sofija','BGR',1122302),
(540,'Plovdiv','BGR',342584), (541,'Varna','BGR',299801), (542,'Burgas','BGR',195255),
(543,'Ruse','BGR',166467), (544,'Stara Zagora','BGR',147939), (545,'Pleven','BGR',121952),
(546,'Sliven','BGR',105530), (547,'Dobric','BGR',100399), (548,'<27>umen','BGR',94686),
(553,'George Town','CYM',19600), (584,'San Jos<6F>','CRI',339131), (1523,'Wien','AUT',1608144),
(1524,'Graz','AUT',240967), (1525,'Linz','AUT',188022), (1526,'Salzburg','AUT',144247),
(1527,'Innsbruck','AUT',111752), (1528,'Klagenfurt','AUT',91141), (1810,'Montr<74>al','CAN',1016376),
(1811,'Calgary','CAN',768082), (1812,'Toronto','CAN',688275), (1813,'North York','CAN',622632),
(1814,'Winnipeg','CAN',618477), (1815,'Edmonton','CAN',616306), (1816,'Mississauga','CAN',608072),
(1817,'Scarborough','CAN',594501), (1818,'Vancouver','CAN',514008), (1819,'Etobicoke','CAN',348845),
(1820,'London','CAN',339917), (1821,'Hamilton','CAN',335614), (1822,'Ottawa','CAN',335277),
(1823,'Laval','CAN',330393), (1824,'Surrey','CAN',304477), (1825,'Brampton','CAN',296711),
(1826,'Windsor','CAN',207588), (1827,'Saskatoon','CAN',193647), (1828,'Kitchener','CAN',189959),
(1829,'Markham','CAN',189098), (1830,'Regina','CAN',180400), (1831,'Burnaby','CAN',179209),
(1832,'Qu<51>bec','CAN',167264), (1833,'York','CAN',154980), (1834,'Richmond','CAN',148867),
(1835,'Vaughan','CAN',147889), (1836,'Burlington','CAN',145150), (1837,'Oshawa','CAN',140173),
(1838,'Oakville','CAN',139192), (1839,'Saint Catharines','CAN',136216), (1840,'Longueuil','CAN',127977),
(1841,'Richmond Hill','CAN',116428), (1842,'Thunder Bay','CAN',115913), (1843,'Nepean','CAN',115100),
(1844,'Cape Breton','CAN',114733), (1845,'East York','CAN',114034), (1846,'Halifax','CAN',113910),
(1847,'Cambridge','CAN',109186), (1848,'Gloucester','CAN',107314), (1849,'Abbotsford','CAN',105403),
(1850,'Guelph','CAN',103593), (1851,'Saint John<68>s','CAN',101936), (1852,'Coquitlam','CAN',101820),
(1853,'Saanich','CAN',101388), (1854,'Gatineau','CAN',100702), (1855,'Delta','CAN',95411),
(1856,'Sudbury','CAN',92686), (1857,'Kelowna','CAN',89442), (1858,'Barrie','CAN',89269),
(1890,'Shanghai','CHN',9696300), (1891,'Peking','CHN',7472000), (1892,'Chongqing','CHN',6351600),
(1893,'Tianjin','CHN',5286800), (1894,'Wuhan','CHN',4344600), (1895,'Harbin','CHN',4289800),
(1896,'Shenyang','CHN',4265200), (1897,'Kanton [Guangzhou]','CHN',4256300), (1898,'Chengdu','CHN',3361500),
(1899,'Nanking [Nanjing]','CHN',2870300), (1900,'Changchun','CHN',2812000), (1901,'Xi<58>an','CHN',2761400),
(1902,'Dalian','CHN',2697000), (1903,'Qingdao','CHN',2596000), (1904,'Jinan','CHN',2278100),
(1905,'Hangzhou','CHN',2190500), (1906,'Zhengzhou','CHN',2107200), (1907,'Shijiazhuang','CHN',2041500),
(1908,'Taiyuan','CHN',1968400), (1909,'Kunming','CHN',1829500), (1910,'Changsha','CHN',1809800),
(1911,'Nanchang','CHN',1691600), (1912,'Fuzhou','CHN',1593800), (1913,'Lanzhou','CHN',1565800),
(1914,'Guiyang','CHN',1465200), (1915,'Ningbo','CHN',1371200), (1916,'Hefei','CHN',1369100),
(1917,'Urumt<6D>i [<5B>r<EFBFBD>mqi]','CHN',1310100), (1918,'Anshan','CHN',1200000), (1919,'Fushun','CHN',1200000),
(1920,'Nanning','CHN',1161800), (1921,'Zibo','CHN',1140000), (1922,'Qiqihar','CHN',1070000),
(1923,'Jilin','CHN',1040000), (1924,'Tangshan','CHN',1040000), (1925,'Baotou','CHN',980000),
(1926,'Shenzhen','CHN',950500), (1927,'Hohhot','CHN',916700), (1928,'Handan','CHN',840000),
(1929,'Wuxi','CHN',830000), (1930,'Xuzhou','CHN',810000), (1931,'Datong','CHN',800000),
(1932,'Yichun','CHN',800000), (1933,'Benxi','CHN',770000), (1934,'Luoyang','CHN',760000),
(1935,'Suzhou','CHN',710000), (1936,'Xining','CHN',700200), (1937,'Huainan','CHN',700000),
(1938,'Jixi','CHN',683885), (1939,'Daqing','CHN',660000), (1940,'Fuxin','CHN',640000),
(1941,'Amoy [Xiamen]','CHN',627500), (1942,'Liuzhou','CHN',610000), (1943,'Shantou','CHN',580000),
(1944,'Jinzhou','CHN',570000), (1945,'Mudanjiang','CHN',570000), (1946,'Yinchuan','CHN',544500),
(1947,'Changzhou','CHN',530000), (1948,'Zhangjiakou','CHN',530000), (1949,'Dandong','CHN',520000),
(1950,'Hegang','CHN',520000), (1951,'Kaifeng','CHN',510000), (1952,'Jiamusi','CHN',493409),
(1953,'Liaoyang','CHN',492559), (1954,'Hengyang','CHN',487148), (1955,'Baoding','CHN',483155),
(1956,'Hunjiang','CHN',482043), (1957,'Xinxiang','CHN',473762), (1958,'Huangshi','CHN',457601),
(1959,'Haikou','CHN',454300), (1960,'Yantai','CHN',452127), (1961,'Bengbu','CHN',449245),
(1962,'Xiangtan','CHN',441968), (1963,'Weifang','CHN',428522), (1964,'Wuhu','CHN',425740),
(1965,'Pingxiang','CHN',425579), (1966,'Yingkou','CHN',421589), (1967,'Anyang','CHN',420332),
(1968,'Panzhihua','CHN',415466), (1969,'Pingdingshan','CHN',410775), (1970,'Xiangfan','CHN',410407),
(1971,'Zhuzhou','CHN',409924), (1972,'Jiaozuo','CHN',409100), (1973,'Wenzhou','CHN',401871),
(1974,'Zhangjiang','CHN',400997), (1975,'Zigong','CHN',393184), (1976,'Shuangyashan','CHN',386081),
(1977,'Zaozhuang','CHN',380846), (1978,'Yakeshi','CHN',377869), (1979,'Yichang','CHN',371601),
(1980,'Zhenjiang','CHN',368316), (1981,'Huaibei','CHN',366549), (1982,'Qinhuangdao','CHN',364972),
(1983,'Guilin','CHN',364130), (1984,'Liupanshui','CHN',363954), (1985,'Panjin','CHN',362773),
(1986,'Yangquan','CHN',362268), (1987,'Jinxi','CHN',357052), (1988,'Liaoyuan','CHN',354141),
(1989,'Lianyungang','CHN',354139), (1990,'Xianyang','CHN',352125), (1991,'Tai<61>an','CHN',350696),
(1992,'Chifeng','CHN',350077), (1993,'Shaoguan','CHN',350043), (1994,'Nantong','CHN',343341),
(1995,'Leshan','CHN',341128), (1996,'Baoji','CHN',337765), (1997,'Linyi','CHN',324720),
(1998,'Tonghua','CHN',324600), (1999,'Siping','CHN',317223), (2000,'Changzhi','CHN',317144),
(2001,'Tengzhou','CHN',315083), (2002,'Chaozhou','CHN',313469), (2003,'Yangzhou','CHN',312892),
(2004,'Dongwan','CHN',308669), (2005,'Ma<4D>anshan','CHN',305421), (2006,'Foshan','CHN',303160),
(2007,'Yueyang','CHN',302800), (2008,'Xingtai','CHN',302789), (2009,'Changde','CHN',301276),
(2010,'Shihezi','CHN',299676), (2011,'Yancheng','CHN',296831), (2012,'Jiujiang','CHN',291187),
(2013,'Dongying','CHN',281728), (2014,'Shashi','CHN',281352), (2015,'Xintai','CHN',281248),
(2016,'Jingdezhen','CHN',281183), (2017,'Tongchuan','CHN',280657), (2018,'Zhongshan','CHN',278829),
(2019,'Shiyan','CHN',273786), (2020,'Tieli','CHN',265683), (2021,'Jining','CHN',265248),
(2022,'Wuhai','CHN',264081), (2023,'Mianyang','CHN',262947), (2024,'Luzhou','CHN',262892),
(2025,'Zunyi','CHN',261862), (2026,'Shizuishan','CHN',257862), (2027,'Neijiang','CHN',256012),
(2028,'Tongliao','CHN',255129), (2029,'Tieling','CHN',254842), (2030,'Wafangdian','CHN',251733),
(2031,'Anqing','CHN',250718), (2032,'Shaoyang','CHN',247227), (2033,'Laiwu','CHN',246833),
(2034,'Chengde','CHN',246799), (2035,'Tianshui','CHN',244974), (2036,'Nanyang','CHN',243303),
(2037,'Cangzhou','CHN',242708), (2038,'Yibin','CHN',241019), (2039,'Huaiyin','CHN',239675),
(2040,'Dunhua','CHN',235100), (2041,'Yanji','CHN',230892), (2042,'Jiangmen','CHN',230587),
(2043,'Tongling','CHN',228017), (2044,'Suihua','CHN',227881), (2045,'Gongziling','CHN',226569),
(2046,'Xiantao','CHN',222884), (2047,'Chaoyang','CHN',222394), (2048,'Ganzhou','CHN',220129),
(2049,'Huzhou','CHN',218071), (2050,'Baicheng','CHN',217987), (2051,'Shangzi','CHN',215373),
(2052,'Yangjiang','CHN',215196), (2053,'Qitaihe','CHN',214957), (2054,'Gejiu','CHN',214294),
(2055,'Jiangyin','CHN',213659), (2056,'Hebi','CHN',212976), (2057,'Jiaxing','CHN',211526),
(2058,'Wuzhou','CHN',210452), (2059,'Meihekou','CHN',209038), (2060,'Xuchang','CHN',208815),
(2061,'Liaocheng','CHN',207844), (2062,'Haicheng','CHN',205560), (2063,'Qianjiang','CHN',205504),
(2064,'Baiyin','CHN',204970), (2065,'Bei<65>an','CHN',204899), (2066,'Yixing','CHN',200824),
(2067,'Laizhou','CHN',198664), (2068,'Qaramay','CHN',197602), (2069,'Acheng','CHN',197595),
(2070,'Dezhou','CHN',195485), (2071,'Nanping','CHN',195064), (2072,'Zhaoqing','CHN',194784),
(2073,'Beipiao','CHN',194301), (2074,'Fengcheng','CHN',193784), (2075,'Fuyu','CHN',192981),
(2076,'Xinyang','CHN',192509), (2077,'Dongtai','CHN',192247), (2078,'Yuci','CHN',191356),
(2079,'Honghu','CHN',190772), (2080,'Ezhou','CHN',190123), (2081,'Heze','CHN',189293),
(2082,'Daxian','CHN',188101), (2083,'Linfen','CHN',187309), (2084,'Tianmen','CHN',186332),
(2085,'Yiyang','CHN',185818), (2086,'Quanzhou','CHN',185154), (2087,'Rizhao','CHN',185048),
(2088,'Deyang','CHN',182488), (2089,'Guangyuan','CHN',182241), (2090,'Changshu','CHN',181805),
(2091,'Zhangzhou','CHN',181424), (2092,'Hailar','CHN',180650), (2093,'Nanchong','CHN',180273),
(2094,'Jiutai','CHN',180130), (2095,'Zhaodong','CHN',179976), (2096,'Shaoxing','CHN',179818),
(2097,'Fuyang','CHN',179572), (2098,'Maoming','CHN',178683), (2099,'Qujing','CHN',178669),
(2100,'Ghulja','CHN',177193), (2101,'Jiaohe','CHN',176367), (2102,'Puyang','CHN',175988),
(2103,'Huadian','CHN',175873), (2104,'Jiangyou','CHN',175753), (2105,'Qashqar','CHN',174570),
(2106,'Anshun','CHN',174142), (2107,'Fuling','CHN',173878), (2108,'Xinyu','CHN',173524),
(2109,'Hanzhong','CHN',169930), (2110,'Danyang','CHN',169603), (2111,'Chenzhou','CHN',169400),
(2112,'Xiaogan','CHN',166280), (2113,'Shangqiu','CHN',164880), (2114,'Zhuhai','CHN',164747),
(2115,'Qingyuan','CHN',164641), (2116,'Aqsu','CHN',164092), (2117,'Jining','CHN',163552),
(2118,'Xiaoshan','CHN',162930), (2119,'Zaoyang','CHN',162198), (2120,'Xinghua','CHN',161910),
(2121,'Hami','CHN',161315), (2122,'Huizhou','CHN',161023), (2123,'Jinmen','CHN',160794),
(2124,'Sanming','CHN',160691), (2125,'Ulanhot','CHN',159538), (2126,'Korla','CHN',159344),
(2127,'Wanxian','CHN',156823), (2128,'Rui<75>an','CHN',156468), (2129,'Zhoushan','CHN',156317),
(2130,'Liangcheng','CHN',156307), (2131,'Jiaozhou','CHN',153364), (2132,'Taizhou','CHN',152442),
(2133,'Suzhou','CHN',151862), (2134,'Yichun','CHN',151585), (2135,'Taonan','CHN',150168),
(2136,'Pingdu','CHN',150123), (2137,'Ji<4A>an','CHN',148583), (2138,'Longkou','CHN',148362),
(2139,'Langfang','CHN',148105), (2140,'Zhoukou','CHN',146288), (2141,'Suining','CHN',146086),
(2142,'Yulin','CHN',144467), (2143,'Jinhua','CHN',144280), (2144,'Liu<69>an','CHN',144248),
(2145,'Shuangcheng','CHN',142659), (2146,'Suizhou','CHN',142302), (2147,'Ankang','CHN',142170),
(2148,'Weinan','CHN',140169), (2149,'Longjing','CHN',139417), (2150,'Da<44>an','CHN',138963),
(2151,'Lengshuijiang','CHN',137994), (2152,'Laiyang','CHN',137080), (2153,'Xianning','CHN',136811),
(2154,'Dali','CHN',136554), (2155,'Anda','CHN',136446), (2156,'Jincheng','CHN',136396),
(2157,'Longyan','CHN',134481), (2158,'Xichang','CHN',134419), (2159,'Wendeng','CHN',133910),
(2160,'Hailun','CHN',133565), (2161,'Binzhou','CHN',133555), (2162,'Linhe','CHN',133183),
(2163,'Wuwei','CHN',133101), (2164,'Duyun','CHN',132971), (2165,'Mishan','CHN',132744),
(2166,'Shangrao','CHN',132455), (2167,'Changji','CHN',132260), (2168,'Meixian','CHN',132156),
(2169,'Yushu','CHN',131861), (2170,'Tiefa','CHN',131807), (2171,'Huai<61>an','CHN',131149),
(2172,'Leiyang','CHN',130115), (2173,'Zalantun','CHN',130031), (2174,'Weihai','CHN',128888),
(2175,'Loudi','CHN',128418), (2176,'Qingzhou','CHN',128258), (2177,'Qidong','CHN',126872),
(2178,'Huaihua','CHN',126785), (2179,'Luohe','CHN',126438), (2180,'Chuzhou','CHN',125341),
(2181,'Kaiyuan','CHN',124219), (2182,'Linqing','CHN',123958), (2183,'Chaohu','CHN',123676),
(2184,'Laohekou','CHN',123366), (2185,'Dujiangyan','CHN',123357), (2186,'Zhumadian','CHN',123232),
(2187,'Linchuan','CHN',121949), (2188,'Jiaonan','CHN',121397), (2189,'Sanmenxia','CHN',120523),
(2190,'Heyuan','CHN',120101), (2191,'Manzhouli','CHN',120023), (2192,'Lhasa','CHN',120000),
(2193,'Lianyuan','CHN',118858), (2194,'Kuytun','CHN',118553), (2195,'Puqi','CHN',117264),
(2196,'Hongjiang','CHN',116188), (2197,'Qinzhou','CHN',114586), (2198,'Renqiu','CHN',114256),
(2199,'Yuyao','CHN',114065), (2200,'Guigang','CHN',114025), (2201,'Kaili','CHN',113958),
(2202,'Yan<61>an','CHN',113277), (2203,'Beihai','CHN',112673), (2204,'Xuangzhou','CHN',112673),
(2205,'Quzhou','CHN',112373), (2206,'Yong<6E>an','CHN',111762), (2207,'Zixing','CHN',110048),
(2208,'Liyang','CHN',109520), (2209,'Yizheng','CHN',109268), (2210,'Yumen','CHN',109234),
(2211,'Liling','CHN',108504), (2212,'Yuncheng','CHN',108359), (2213,'Shanwei','CHN',107847),
(2214,'Cixi','CHN',107329), (2215,'Yuanjiang','CHN',107004), (2216,'Bozhou','CHN',106346),
(2217,'Jinchang','CHN',105287), (2218,'Fu<46>an','CHN',105265), (2219,'Suqian','CHN',105021),
(2220,'Shishou','CHN',104571), (2221,'Hengshui','CHN',104269), (2222,'Danjiangkou','CHN',103211),
(2223,'Fujin','CHN',103104), (2224,'Sanya','CHN',102820), (2225,'Guangshui','CHN',102770),
(2226,'Huangshan','CHN',102628), (2227,'Xingcheng','CHN',102384), (2228,'Zhucheng','CHN',102134),
(2229,'Kunshan','CHN',102052), (2230,'Haining','CHN',100478), (2231,'Pingliang','CHN',99265),
(2232,'Fuqing','CHN',99193), (2233,'Xinzhou','CHN',98667), (2234,'Jieyang','CHN',98531),
(2235,'Zhangjiagang','CHN',97994), (2236,'Tong Xian','CHN',97168), (2237,'Ya<59>an','CHN',95900),
(2238,'Jinzhou','CHN',95761), (2239,'Emeishan','CHN',94000), (2240,'Enshi','CHN',93056),
(2241,'Bose','CHN',93009), (2242,'Yuzhou','CHN',92889), (2243,'Kaiyuan','CHN',91999),
(2244,'Tumen','CHN',91471), (2245,'Putian','CHN',91030), (2246,'Linhai','CHN',90870),
(2247,'Xilin Hot','CHN',90646), (2248,'Shaowu','CHN',90286), (2249,'Junan','CHN',90222),
(2250,'Huaying','CHN',89400), (2251,'Pingyi','CHN',89373), (2252,'Huangyan','CHN',89288),
(2413,'La Habana','CUB',2256000), (2414,'Santiago de Cuba','CUB',433180), (2415,'Camag<61>ey','CUB',298726),
(2416,'Holgu<67>n','CUB',249492), (2417,'Santa Clara','CUB',207350), (2418,'Guant<6E>namo','CUB',205078),
(2419,'Pinar del R<>o','CUB',142100), (2420,'Bayamo','CUB',141000), (2421,'Cienfuegos','CUB',132770),
(2422,'Victoria de las Tunas','CUB',132350), (2423,'Matanzas','CUB',123273), (2424,'Manzanillo','CUB',109350),
(2425,'Sancti-Sp<53>ritus','CUB',100751), (2426,'Ciego de <20>vila','CUB',98505), (2430,'Nicosia','CYP',195000),
(2431,'Limassol','CYP',154400), (3245,'Z<>rich','CHE',336800), (3246,'Geneve','CHE',173500),
(3247,'Basel','CHE',166700), (3248,'Bern','CHE',122700), (3249,'Lausanne','CHE',114500),
(3339,'Praha','CZE',1181126), (3340,'Brno','CZE',381862), (3341,'Ostrava','CZE',320041),
(3342,'Plzen','CZE',166759), (3343,'Olomouc','CZE',102702), (3344,'Liberec','CZE',99155),
(3345,'Cesk<73> Budejovice','CZE',98186), (3346,'Hradec Kr<4B>lov<6F>','CZE',98080), (3347,'<27>st<73> nad Labem','CZE',95491),
(3348,'Pardubice','CZE',91309), (3520,'Minsk','BLR',1674000), (3521,'Gomel','BLR',475000),
(3522,'Mogiljov','BLR',356000), (3523,'Vitebsk','BLR',340000), (3524,'Grodno','BLR',302000),
(3525,'Brest','BLR',286000), (3526,'Bobruisk','BLR',221000), (3527,'Baranovit<69>i','BLR',167000),
(3528,'Borisov','BLR',151000), (3529,'Pinsk','BLR',130000), (3530,'Or<4F>a','BLR',124000),
(3531,'Mozyr','BLR',110000), (3532,'Novopolotsk','BLR',106000), (3533,'Lida','BLR',101000),
(3534,'Soligorsk','BLR',101000), (3535,'Molodet<65>no','BLR',97000);
insert into t1 (Code, Name, Continent) values
('AFG','Afghanistan','Asia'), ('ANT','Netherlands Antilles','North America'),
('ALB','Albania','Europe'), ('AND','Andorra','Europe'),
('AIA','Anguilla','North America'), ('ATG','Antigua and Barbuda','North America'),
('ARE','United Arab Emirates','Asia'), ('ARM','Armenia','Asia'),
('ABW','Aruba','North America'), ('AZE','Azerbaijan','Asia'),
('BHS','Bahamas','North America'), ('BHR','Bahrain','Asia'),
('BGD','Bangladesh','Asia'), ('BRB','Barbados','North America'),
('BEL','Belgium','Europe'), ('BLZ','Belize','North America'),
('BMU','Bermuda','North America'), ('BTN','Bhutan','Asia'),
('BIH','Bosnia and Herzegovina','Europe'), ('BRN','Brunei','Asia'),
('BGR','Bulgaria','Europe'), ('CYM','Cayman Islands','North America'),
('CRI','Costa Rica','North America'), ('AUT','Austria','Europe'),
('CAN','Canada','North America'), ('CHN','China','Asia'),
('CUB','Cuba','North America'), ('CYP','Cyprus','Asia'),
('CHE','Switzerland','Europe'), ('CZE','Czech Republic','Europe'),
('BLR','Belarus','Europe');
update t2 set population=6000000 where Name in ('Wien', 'Vancouver', 'Praha');
--enable_query_log
--echo This must not use LooseScan:
EXPLAIN SELECT Name FROM t1
WHERE t1.Code IN (
SELECT t2.CountryCode FROM t2 WHERE Population > 5000000);
SELECT Name FROM t1
WHERE t1.Code IN (
SELECT t2.CountryCode FROM t2 WHERE Population > 5000000);
drop table t1, t2;
#
# Bug#33062: subquery in stored routine cause crash
#
CREATE TABLE t1(a INT);
CREATE TABLE t2(c INT);
DELIMITER //;
CREATE PROCEDURE p1(v1 int)
BEGIN
SELECT 1 FROM t1 WHERE a = v1 AND a IN (SELECT c FROM t2);
END
//
CREATE PROCEDURE p2(v1 int)
BEGIN
SELECT 1 FROM t1 WHERE a IN (SELECT c FROM t2);
END
//
CREATE PROCEDURE p3(v1 int)
BEGIN
SELECT 1
FROM
t1 t01,t1 t02,t1 t03,t1 t04,t1 t05,t1 t06,t1 t07,t1 t08,
t1 t09,t1 t10,t1 t11,t1 t12,t1 t13,t1 t14,t1 t15,t1 t16,
t1 t17,t1 t18,t1 t19,t1 t20,t1 t21,t1 t22,t1 t23,t1 t24,
t1 t25,t1 t26,t1 t27,t1 t28,t1 t29,t1 t30,t1 t31,t1 t32,
t1 t33,t1 t34,t1 t35,t1 t36,t1 t37,t1 t38,t1 t39,t1 t40,
t1 t41,t1 t42,t1 t43,t1 t44,t1 t45,t1 t46,t1 t47,t1 t48,
t1 t49,t1 t50,t1 t51,t1 t52,t1 t53,t1 t54,t1 t55,t1 t56,
t1 t57,t1 t58,t1 t59,t1 t60
WHERE t01.a IN (SELECT c FROM t2);
END
//
CREATE PROCEDURE p4(v1 int)
BEGIN
SELECT 1
FROM
t1 t01,t1 t02,t1 t03,t1 t04,t1 t05,t1 t06,t1 t07,t1 t08,
t1 t09,t1 t10,t1 t11,t1 t12,t1 t13,t1 t14,t1 t15,t1 t16,
t1 t17,t1 t18,t1 t19,t1 t20,t1 t21,t1 t22,t1 t23,t1 t24,
t1 t25,t1 t26,t1 t27,t1 t28,t1 t29,t1 t30,t1 t31,t1 t32,
t1 t33,t1 t34,t1 t35,t1 t36,t1 t37,t1 t38,t1 t39,t1 t40,
t1 t41,t1 t42,t1 t43,t1 t44,t1 t45,t1 t46,t1 t47,t1 t48,
t1 t49,t1 t50,t1 t51,t1 t52,t1 t53,t1 t54,t1 t55,t1 t56,
t1 t57,t1 t58,t1 t59,t1 t60
WHERE t01.a = v1 AND t01.a IN (SELECT c FROM t2);
END
//
DELIMITER ;//
CALL p1(1);
CALL p2(1);
CALL p3(1);
CALL p4(1);
DROP TABLE t1, t2;
DROP PROCEDURE p1;
DROP PROCEDURE p2;
DROP PROCEDURE p3;
DROP PROCEDURE p4;
#
# BUG#35160 "Subquery optimization: table pullout is not reflected in EXPLAIN EXTENDED"
#
create table t0 (a int);
insert into t0 values (0),(1),(2),(3),(4);
create table t1 (a int, b int, key(a));
insert into t1 select a,a from t0;
create table t2 (a int, b int, primary key(a));
insert into t2 select * from t1;
# Table t2 should be pulled out because t2.a=t0.a equality
--echo Table t2, unlike table t1, should be displayed as pulled out
explain extended select * from t0
where t0.a in ( select t1.a from t1,t2 where t2.a=t0.a and
t1.b=t2.b);
#
# BUG#46556 "Returning incorrect, empty results for some IN subqueries
# w/ semijoin=on"
#
# The above query did not have a valid plan before the fix of BUG#46556.
# Add some data that would cause wrong result with the old plan.
update t1 set a=3, b=11 where a=4;
update t2 set b=11 where a=3;
if (`select @@join_cache_level=6`)
{
--echo
--echo # The following query gives wrong result due to Bug#49129
}
select * from t0 where t0.a in
(select t1.a from t1, t2 where t2.a=t0.a and t1.b=t2.b);
drop table t0, t1, t2;
#
# BUG#35767: Processing of uncorrelated subquery with semi-join cause wrong result and crash
#
CREATE TABLE t1 (
id int(11) NOT NULL,
PRIMARY KEY (id));
CREATE TABLE t2 (
id int(11) NOT NULL,
fid int(11) NOT NULL,
PRIMARY KEY (id));
insert into t1 values(1);
insert into t2 values(1,7503),(2,1);
--error 1054
explain select count(*)
from t1
where fid IN (select fid from t2 where (id between 7502 and 8420) order by fid );
drop table t1, t2;
#
# BUG#36137 "virtual longlong Item_in_subselect::val_int(): Assertion `0' failed."
#
create table t1 (a int, b int, key (a), key (b));
insert into t1 values (2,4),(2,4),(2,4);
select t1.a from t1
where
t1.a in (select 1 from t1 where t1.a in (select 1 from t1) group by t1.a);
drop table t1;
#
# BUG#36128: not in subquery causes crash in cleanup..
#
create table t1(a int,b int,key(a),key(b));
insert into t1 values (1,1),(2,2),(3,3);
select 1 from t1
where t1.a not in (select 1 from t1
where t1.a in (select 1 from t1)
group by t1.b);
drop table t1;
#
# BUG#33743 "nested subqueries, unique index, wrong result"
#
CREATE TABLE t1
(EMPNUM CHAR(3) NOT NULL,
EMPNAME CHAR(20),
GRADE DECIMAL(4),
CITY CHAR(15));
CREATE TABLE t2
(PNUM CHAR(3) NOT NULL,
PNAME CHAR(20),
PTYPE CHAR(6),
BUDGET DECIMAL(9),
CITY CHAR(15));
CREATE TABLE t3
(EMPNUM CHAR(3) NOT NULL,
PNUM CHAR(3) NOT NULL,
HOURS DECIMAL(5));
INSERT INTO t1 VALUES ('E1','Alice',12,'Deale');
INSERT INTO t1 VALUES ('E2','Betty',10,'Vienna');
INSERT INTO t1 VALUES ('E3','Carmen',13,'Vienna');
INSERT INTO t1 VALUES ('E4','Don',12,'Deale');
INSERT INTO t1 VALUES ('E5','Ed',13,'Akron');
INSERT INTO t2 VALUES ('P1','MXSS','Design',10000,'Deale');
INSERT INTO t2 VALUES ('P2','CALM','Code',30000,'Vienna');
INSERT INTO t2 VALUES ('P3','SDP','Test',30000,'Tampa');
INSERT INTO t2 VALUES ('P4','SDP','Design',20000,'Deale');
INSERT INTO t2 VALUES ('P5','IRM','Test',10000,'Vienna');
INSERT INTO t2 VALUES ('P6','PAYR','Design',50000,'Deale');
INSERT INTO t3 VALUES ('E1','P1',40);
INSERT INTO t3 VALUES ('E1','P2',20);
INSERT INTO t3 VALUES ('E1','P3',80);
INSERT INTO t3 VALUES ('E1','P4',20);
INSERT INTO t3 VALUES ('E1','P5',12);
INSERT INTO t3 VALUES ('E1','P6',12);
INSERT INTO t3 VALUES ('E2','P1',40);
INSERT INTO t3 VALUES ('E2','P2',80);
INSERT INTO t3 VALUES ('E3','P2',20);
INSERT INTO t3 VALUES ('E4','P2',20);
INSERT INTO t3 VALUES ('E4','P4',40);
INSERT INTO t3 VALUES ('E4','P5',80);
SELECT * FROM t1;
CREATE UNIQUE INDEX t1_IDX ON t1(EMPNUM);
--sorted_result
SELECT EMPNAME
FROM t1
WHERE EMPNUM IN
(SELECT EMPNUM
FROM t3
WHERE PNUM IN
(SELECT PNUM
FROM t2
WHERE PTYPE = 'Design'));
DROP INDEX t1_IDX ON t1;
CREATE INDEX t1_IDX ON t1(EMPNUM);
--sorted_result
SELECT EMPNAME
FROM t1
WHERE EMPNUM IN
(SELECT EMPNUM
FROM t3
WHERE PNUM IN
(SELECT PNUM
FROM t2
WHERE PTYPE = 'Design'));
DROP INDEX t1_IDX ON t1;
--sorted_result
SELECT EMPNAME
FROM t1
WHERE EMPNUM IN
(SELECT EMPNUM
FROM t3
WHERE PNUM IN
(SELECT PNUM
FROM t2
WHERE PTYPE = 'Design'));
DROP TABLE t1, t2, t3;
#
# BUG#33245 "Crash on VIEW referencing FROM table in an IN clause"
#
CREATE TABLE t1 (f1 INT NOT NULL);
CREATE VIEW v1 (a) AS SELECT f1 IN (SELECT f1 FROM t1) FROM t1;
SELECT * FROM v1;
drop view v1;
drop table t1;
#
# BUG#35550 "Semi-join subquery in ON clause and no WHERE crashes the server"
#
create table t0 (a int);
insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
create table t1(a int, b int);
insert into t1 values (0,0),(1,1),(2,2);
create table t2 as select * from t1;
create table t3 (pk int, a int, primary key(pk));
insert into t3 select a,a from t0;
explain
select * from t1 left join t2 on (t2.a= t1.a and t2.a in (select pk from t3));
drop table t0, t1, t2, t3;
#
# BUG#34799: crash or/and memory overrun with dependant subquery and some joins
#
create table t1 (a int);
insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
create table t2 (a char(200), b char(200), c char(200), primary key (a,b,c)) engine=innodb;
insert into t2 select concat(a, repeat('X',198)),repeat('B',200),repeat('B',200) from t1;
insert into t2 select concat(a, repeat('Y',198)),repeat('B',200),repeat('B',200) from t1;
alter table t2 add filler1 int;
insert into t1 select A.a + 10*(B.a + 10*C.a) from t1 A, t1 B, t1 C;
set @save_join_buffer_size=@@join_buffer_size;
--disable_warnings
set join_buffer_size=1;
--enable_warnings
select * from t2 where filler1 in ( select a from t1);
set join_buffer_size=default;
drop table t1, t2;
#
# BUG#33509: Server crashes with number of recursive subqueries=61
# (the query may or may not fail with an error so we're using it with SP
#
create table t1 (a int not null);
--disable_warnings
drop procedure if exists p1;
--enable_warnings
delimiter |;
CREATE PROCEDURE p1()
BEGIN
DECLARE EXIT HANDLER FOR SQLEXCEPTION select a from t1;
prepare s1 from '
select a from t1 where a in (
select a from t1 where a in (
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select a from t1 where a in ( select a from t1)
)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))';
execute s1;
END;
|
delimiter ;|
call p1();
drop procedure p1;
drop table t1;
#
# BUG#35468 "Slowdown and wrong result for uncorrelated subquery w/o where"
#
create table t0 (a int);
insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
create table t1 (a int) as select A.a + 10 *(B.a + 10*C.a) as a from t0 A, t0 B, t0 C;
create table t2 (id int, a int, primary key(id), key(a)) as select a as id, a as a from t1;
show create table t2;
set @a=0;
create table t3 as select * from t2 limit 0;
insert into t3 select @a:=@a+1, t2.a from t2, t0;
insert into t3 select @a:=@a+1, t2.a from t2, t0;
insert into t3 select @a:=@a+1, t2.a from t2, t0;
alter table t3 add primary key(id), add key(a);
--echo The following must use loose index scan over t3, key a:
explain select count(a) from t2 where a in ( SELECT a FROM t3);
select count(a) from t2 where a in ( SELECT a FROM t3);
drop table t0,t1,t2,t3;
--echo
--echo BUG#42740: crash in optimize_semijoin_nests
--echo
create table t1 (c6 timestamp,key (c6)) engine=innodb;
create table t2 (c2 double) engine=innodb;
explain select 1 from t2 where c2 = any (select log10(null) from t1 where c6 <null) ;
drop table t1, t2;
--echo #
--echo # BUG#42742: crash in setup_sj_materialization, Copy_field::set
--echo #
create table t3 ( c1 year) engine=innodb;
insert into t3 values (2135),(2142);
create table t2 (c1 tinytext,c2 text,c6 timestamp) engine=innodb;
-- echo # The following must not crash, EXPLAIN should show one SJ strategy, not a mix:
explain select 1 from t2 where
c2 in (select 1 from t3, t2) and
c1 in (select convert(c6,char(1)) from t2);
drop table t2, t3;

11
mysql-test/t/subselect_sj2_jcl6.test Normal file
View File

@@ -0,0 +1,11 @@
#
# Run subselect_sj2.test with BKA enabled
#
set join_cache_level=6;
show variables like 'join_cache_level';
--source t/subselect_sj2.test
set join_cache_level=default;
show variables like 'join_cache_level';

11
mysql-test/t/subselect_sj_jcl6.test Normal file
View File

@@ -0,0 +1,11 @@
#
# Run subselect_sj.test with BKA enabled
#
set join_cache_level=6;
show variables like 'join_cache_level';
--source t/subselect_sj.test
set join_cache_level=default;
show variables like 'join_cache_level';