mirror of
https://github.com/MariaDB/server.git
synced 2025-05-07 04:01:59 +03:00
da5edf5057
- Make index condition pushdown be controlled by an @@optimizer_switch flag, not by @@engine_condition_pushdown - Make MRR buffer size be controlled by @@mrr_buffer_size, not by @@read_rnd_buffer_size - Move parts of code to separate files - Code cleanup - Add --sorted_result to some SELECTs in tests.
405 lines
12 KiB
Plaintext
405 lines
12 KiB
Plaintext
drop table if exists t1,t2,t3,t4;
|
|
set @save_storage_engine= @@storage_engine;
|
|
set storage_engine=InnoDB;
|
|
create table t1(a int);
|
|
show create table t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`a` int(11) DEFAULT NULL
|
|
) ENGINE=InnoDB DEFAULT CHARSET=latin1
|
|
insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
|
|
create table t2(a int);
|
|
insert into t2 select A.a + 10*(B.a + 10*C.a) from t1 A, t1 B, t1 C;
|
|
create table t3 (
|
|
a char(8) not null, b char(8) not null, filler char(200),
|
|
key(a)
|
|
);
|
|
insert into t3 select @a:=concat('c-', 1000+ A.a, '=w'), @a, 'filler' from t2 A;
|
|
insert into t3 select concat('c-', 1000+A.a, '=w'), concat('c-', 2000+A.a, '=w'),
|
|
'filler-1' from t2 A;
|
|
insert into t3 select concat('c-', 1000+A.a, '=w'), concat('c-', 3000+A.a, '=w'),
|
|
'filler-2' from t2 A;
|
|
select a,filler from t3 where a >= 'c-9011=w';
|
|
a filler
|
|
select a,filler from t3 where a >= 'c-1011=w' and a <= 'c-1015=w';
|
|
a filler
|
|
c-1011=w filler
|
|
c-1012=w filler
|
|
c-1013=w filler
|
|
c-1014=w filler
|
|
c-1015=w filler
|
|
c-1011=w filler-1
|
|
c-1012=w filler-1
|
|
c-1013=w filler-1
|
|
c-1014=w filler-1
|
|
c-1015=w filler-1
|
|
c-1011=w filler-2
|
|
c-1012=w filler-2
|
|
c-1013=w filler-2
|
|
c-1014=w filler-2
|
|
c-1015=w filler-2
|
|
select a,filler from t3 where (a>='c-1011=w' and a <= 'c-1013=w') or
|
|
(a>='c-1014=w' and a <= 'c-1015=w');
|
|
a filler
|
|
c-1011=w filler
|
|
c-1012=w filler
|
|
c-1013=w filler
|
|
c-1014=w filler
|
|
c-1015=w filler
|
|
c-1011=w filler-1
|
|
c-1012=w filler-1
|
|
c-1013=w filler-1
|
|
c-1014=w filler-1
|
|
c-1015=w filler-1
|
|
c-1011=w filler-2
|
|
c-1012=w filler-2
|
|
c-1013=w filler-2
|
|
c-1014=w filler-2
|
|
c-1015=w filler-2
|
|
insert into t3 values ('c-1013=z', 'c-1013=z', 'err');
|
|
insert into t3 values ('a-1014=w', 'a-1014=w', 'err');
|
|
select a,filler from t3 where (a>='c-1011=w' and a <= 'c-1013=w') or
|
|
(a>='c-1014=w' and a <= 'c-1015=w');
|
|
a filler
|
|
c-1011=w filler
|
|
c-1012=w filler
|
|
c-1013=w filler
|
|
c-1014=w filler
|
|
c-1015=w filler
|
|
c-1011=w filler-1
|
|
c-1012=w filler-1
|
|
c-1013=w filler-1
|
|
c-1014=w filler-1
|
|
c-1015=w filler-1
|
|
c-1011=w filler-2
|
|
c-1012=w filler-2
|
|
c-1013=w filler-2
|
|
c-1014=w filler-2
|
|
c-1015=w filler-2
|
|
delete from t3 where b in ('c-1013=z', 'a-1014=w');
|
|
select a,filler from t3 where a='c-1011=w' or a='c-1012=w' or a='c-1013=w' or
|
|
a='c-1014=w' or a='c-1015=w';
|
|
a filler
|
|
c-1011=w filler
|
|
c-1012=w filler
|
|
c-1013=w filler
|
|
c-1014=w filler
|
|
c-1015=w filler
|
|
c-1011=w filler-1
|
|
c-1012=w filler-1
|
|
c-1013=w filler-1
|
|
c-1014=w filler-1
|
|
c-1015=w filler-1
|
|
c-1011=w filler-2
|
|
c-1012=w filler-2
|
|
c-1013=w filler-2
|
|
c-1014=w filler-2
|
|
c-1015=w filler-2
|
|
insert into t3 values ('c-1013=w', 'del-me', 'inserted');
|
|
select a,filler from t3 where a='c-1011=w' or a='c-1012=w' or a='c-1013=w' or
|
|
a='c-1014=w' or a='c-1015=w';
|
|
a filler
|
|
c-1011=w filler
|
|
c-1012=w filler
|
|
c-1013=w filler
|
|
c-1014=w filler
|
|
c-1015=w filler
|
|
c-1011=w filler-1
|
|
c-1012=w filler-1
|
|
c-1013=w filler-1
|
|
c-1014=w filler-1
|
|
c-1015=w filler-1
|
|
c-1011=w filler-2
|
|
c-1012=w filler-2
|
|
c-1013=w filler-2
|
|
c-1014=w filler-2
|
|
c-1015=w filler-2
|
|
c-1013=w inserted
|
|
delete from t3 where b='del-me';
|
|
alter table t3 add primary key(b);
|
|
select b,filler from t3 where (b>='c-1011=w' and b<= 'c-1018=w') or
|
|
b IN ('c-1019=w', 'c-1020=w', 'c-1021=w',
|
|
'c-1022=w', 'c-1023=w', 'c-1024=w');
|
|
b filler
|
|
c-1011=w filler
|
|
c-1012=w filler
|
|
c-1013=w filler
|
|
c-1014=w filler
|
|
c-1015=w filler
|
|
c-1016=w filler
|
|
c-1017=w filler
|
|
c-1018=w filler
|
|
c-1019=w filler
|
|
c-1020=w filler
|
|
c-1021=w filler
|
|
c-1022=w filler
|
|
c-1023=w filler
|
|
c-1024=w filler
|
|
select b,filler from t3 where (b>='c-1011=w' and b<= 'c-1020=w') or
|
|
b IN ('c-1021=w', 'c-1022=w', 'c-1023=w');
|
|
b filler
|
|
c-1011=w filler
|
|
c-1012=w filler
|
|
c-1013=w filler
|
|
c-1014=w filler
|
|
c-1015=w filler
|
|
c-1016=w filler
|
|
c-1017=w filler
|
|
c-1018=w filler
|
|
c-1019=w filler
|
|
c-1020=w filler
|
|
c-1021=w filler
|
|
c-1022=w filler
|
|
c-1023=w filler
|
|
select b,filler from t3 where (b>='c-1011=w' and b<= 'c-1018=w') or
|
|
b IN ('c-1019=w', 'c-1020=w') or
|
|
(b>='c-1021=w' and b<= 'c-1023=w');
|
|
b filler
|
|
c-1011=w filler
|
|
c-1012=w filler
|
|
c-1013=w filler
|
|
c-1014=w filler
|
|
c-1015=w filler
|
|
c-1016=w filler
|
|
c-1017=w filler
|
|
c-1018=w filler
|
|
c-1019=w filler
|
|
c-1020=w filler
|
|
c-1021=w filler
|
|
c-1022=w filler
|
|
c-1023=w filler
|
|
create table t4 (a varchar(10), b int, c char(10), filler char(200),
|
|
key idx1 (a, b, c));
|
|
insert into t4 (filler) select concat('NULL-', 15-a) from t2 order by a limit 15;
|
|
insert into t4 (a,b,c,filler)
|
|
select 'b-1',NULL,'c-1', concat('NULL-', 15-a) from t2 order by a limit 15;
|
|
insert into t4 (a,b,c,filler)
|
|
select 'b-1',NULL,'c-222', concat('NULL-', 15-a) from t2 order by a limit 15;
|
|
insert into t4 (a,b,c,filler)
|
|
select 'bb-1',NULL,'cc-2', concat('NULL-', 15-a) from t2 order by a limit 15;
|
|
insert into t4 (a,b,c,filler)
|
|
select 'zz-1',NULL,'cc-2', 'filler-data' from t2 order by a limit 500;
|
|
explain
|
|
select * from t4 where a IS NULL and b IS NULL and (c IS NULL or c='no-such-row1'
|
|
or c='no-such-row2');
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 SIMPLE t4 range idx1 idx1 29 NULL 16 Using index condition; Using MRR
|
|
select * from t4 where a IS NULL and b IS NULL and (c IS NULL or c='no-such-row1'
|
|
or c='no-such-row2');
|
|
a b c filler
|
|
NULL NULL NULL NULL-15
|
|
NULL NULL NULL NULL-14
|
|
NULL NULL NULL NULL-13
|
|
NULL NULL NULL NULL-12
|
|
NULL NULL NULL NULL-11
|
|
NULL NULL NULL NULL-10
|
|
NULL NULL NULL NULL-9
|
|
NULL NULL NULL NULL-8
|
|
NULL NULL NULL NULL-7
|
|
NULL NULL NULL NULL-6
|
|
NULL NULL NULL NULL-5
|
|
NULL NULL NULL NULL-4
|
|
NULL NULL NULL NULL-3
|
|
NULL NULL NULL NULL-2
|
|
NULL NULL NULL NULL-1
|
|
explain
|
|
select * from t4 where (a ='b-1' or a='bb-1') and b IS NULL and (c='c-1' or c='cc-2');
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 SIMPLE t4 range idx1 idx1 29 NULL 32 Using index condition; Using MRR
|
|
select * from t4 where (a ='b-1' or a='bb-1') and b IS NULL and (c='c-1' or c='cc-2');
|
|
a b c filler
|
|
b-1 NULL c-1 NULL-15
|
|
b-1 NULL c-1 NULL-14
|
|
b-1 NULL c-1 NULL-13
|
|
b-1 NULL c-1 NULL-12
|
|
b-1 NULL c-1 NULL-11
|
|
b-1 NULL c-1 NULL-10
|
|
b-1 NULL c-1 NULL-9
|
|
b-1 NULL c-1 NULL-8
|
|
b-1 NULL c-1 NULL-7
|
|
b-1 NULL c-1 NULL-6
|
|
b-1 NULL c-1 NULL-5
|
|
b-1 NULL c-1 NULL-4
|
|
b-1 NULL c-1 NULL-3
|
|
b-1 NULL c-1 NULL-2
|
|
b-1 NULL c-1 NULL-1
|
|
bb-1 NULL cc-2 NULL-15
|
|
bb-1 NULL cc-2 NULL-14
|
|
bb-1 NULL cc-2 NULL-13
|
|
bb-1 NULL cc-2 NULL-12
|
|
bb-1 NULL cc-2 NULL-11
|
|
bb-1 NULL cc-2 NULL-10
|
|
bb-1 NULL cc-2 NULL-9
|
|
bb-1 NULL cc-2 NULL-8
|
|
bb-1 NULL cc-2 NULL-7
|
|
bb-1 NULL cc-2 NULL-6
|
|
bb-1 NULL cc-2 NULL-5
|
|
bb-1 NULL cc-2 NULL-4
|
|
bb-1 NULL cc-2 NULL-3
|
|
bb-1 NULL cc-2 NULL-2
|
|
bb-1 NULL cc-2 NULL-1
|
|
select * from t4 ignore index(idx1) where (a ='b-1' or a='bb-1') and b IS NULL and (c='c-1' or c='cc-2');
|
|
a b c filler
|
|
b-1 NULL c-1 NULL-15
|
|
b-1 NULL c-1 NULL-14
|
|
b-1 NULL c-1 NULL-13
|
|
b-1 NULL c-1 NULL-12
|
|
b-1 NULL c-1 NULL-11
|
|
b-1 NULL c-1 NULL-10
|
|
b-1 NULL c-1 NULL-9
|
|
b-1 NULL c-1 NULL-8
|
|
b-1 NULL c-1 NULL-7
|
|
b-1 NULL c-1 NULL-6
|
|
b-1 NULL c-1 NULL-5
|
|
b-1 NULL c-1 NULL-4
|
|
b-1 NULL c-1 NULL-3
|
|
b-1 NULL c-1 NULL-2
|
|
b-1 NULL c-1 NULL-1
|
|
bb-1 NULL cc-2 NULL-15
|
|
bb-1 NULL cc-2 NULL-14
|
|
bb-1 NULL cc-2 NULL-13
|
|
bb-1 NULL cc-2 NULL-12
|
|
bb-1 NULL cc-2 NULL-11
|
|
bb-1 NULL cc-2 NULL-10
|
|
bb-1 NULL cc-2 NULL-9
|
|
bb-1 NULL cc-2 NULL-8
|
|
bb-1 NULL cc-2 NULL-7
|
|
bb-1 NULL cc-2 NULL-6
|
|
bb-1 NULL cc-2 NULL-5
|
|
bb-1 NULL cc-2 NULL-4
|
|
bb-1 NULL cc-2 NULL-3
|
|
bb-1 NULL cc-2 NULL-2
|
|
bb-1 NULL cc-2 NULL-1
|
|
drop table t1, t2, t3, t4;
|
|
create table t1 (a int, b int not null,unique key (a,b),index(b));
|
|
insert ignore into t1 values (1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(null,7),(9,9),(8,8),(7,7),(null,9),(null,9),(6,6);
|
|
create table t2 like t1;
|
|
insert into t2 select * from t1;
|
|
alter table t1 modify b blob not null, add c int not null, drop key a, add unique key (a,b(20),c), drop key b, add key (b(10));
|
|
select * from t1 where a is null;
|
|
a b c
|
|
NULL 7 0
|
|
NULL 9 0
|
|
NULL 9 0
|
|
select * from t1 where (a is null or a > 0 and a < 3) and b > 7 limit 3;
|
|
a b c
|
|
NULL 9 0
|
|
NULL 9 0
|
|
select * from t1 where a is null and b=9 or a is null and b=7 limit 3;
|
|
a b c
|
|
NULL 7 0
|
|
NULL 9 0
|
|
NULL 9 0
|
|
drop table t1, t2;
|
|
set storage_engine= @save_storage_engine;
|
|
set @mrr_buffer_size_save= @@mrr_buffer_size;
|
|
set mrr_buffer_size=64;
|
|
Warnings:
|
|
Warning 1292 Truncated incorrect mrr_buffer_size value: '64'
|
|
create table t1(a int);
|
|
insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
|
|
create table t2(a char(8), b char(8), c char(8), filler char(100), key(a,b,c) ) engine=InnoDB;
|
|
insert into t2 select
|
|
concat('a-', 1000 + A.a, '-a'),
|
|
concat('b-', 1000 + B.a, '-b'),
|
|
concat('c-', 1000 + C.a, '-c'),
|
|
'filler'
|
|
from t1 A, t1 B, t1 C;
|
|
explain
|
|
select count(length(a) + length(filler)) from t2 where a>='a-1000-a' and a <'a-1001-a';
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 SIMPLE t2 range a a 9 NULL 99 Using index condition; Using MRR
|
|
select count(length(a) + length(filler)) from t2 where a>='a-1000-a' and a <'a-1001-a';
|
|
count(length(a) + length(filler))
|
|
100
|
|
drop table t2;
|
|
create table t2 (a char(100), b char(100), c char(100), d int,
|
|
filler char(10), key(d), primary key (a,b,c)) engine= innodb;
|
|
insert into t2 select A.a, B.a, B.a, A.a, 'filler' from t1 A, t1 B;
|
|
explain select * from t2 force index (d) where d < 10;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 SIMPLE t2 range d d 5 NULL # Using index condition; Using MRR
|
|
drop table t2;
|
|
drop table t1;
|
|
set @@mrr_buffer_size= @mrr_buffer_size_save;
|
|
create table t1 (f1 int not null, f2 int not null,f3 int not null, f4 char(1), primary key (f1,f2), key ix(f3))Engine=InnoDB;
|
|
select * from t1 where (f3>=5 and f3<=10) or (f3>=1 and f3<=4);
|
|
f1 f2 f3 f4
|
|
1 1 1 A
|
|
2 2 2 A
|
|
3 3 3 A
|
|
4 4 4 A
|
|
5 5 5 A
|
|
6 6 6 A
|
|
7 7 7 A
|
|
8 8 8 A
|
|
9 9 9 A
|
|
10 10 10 A
|
|
drop table t1;
|
|
|
|
BUG#37977: Wrong result returned on GROUP BY + OR + Innodb
|
|
|
|
CREATE TABLE t1 (
|
|
`pk` int(11) NOT NULL AUTO_INCREMENT,
|
|
`int_nokey` int(11) NOT NULL,
|
|
`int_key` int(11) NOT NULL,
|
|
`date_key` date NOT NULL,
|
|
`date_nokey` date NOT NULL,
|
|
`time_key` time NOT NULL,
|
|
`time_nokey` time NOT NULL,
|
|
`datetime_key` datetime NOT NULL,
|
|
`datetime_nokey` datetime NOT NULL,
|
|
`varchar_key` varchar(5) DEFAULT NULL,
|
|
`varchar_nokey` varchar(5) DEFAULT NULL,
|
|
PRIMARY KEY (`pk`),
|
|
KEY `int_key` (`int_key`),
|
|
KEY `date_key` (`date_key`),
|
|
KEY `time_key` (`time_key`),
|
|
KEY `datetime_key` (`datetime_key`),
|
|
KEY `varchar_key` (`varchar_key`)
|
|
) ENGINE=InnoDB;
|
|
INSERT INTO t1 VALUES
|
|
(1,5,5,'2009-10-16','2009-10-16','09:28:15','09:28:15','2007-09-14 05:34:08','2007-09-14 05:34:08','qk','qk'),
|
|
(2,6,6,'0000-00-00','0000-00-00','23:06:39','23:06:39','0000-00-00 00:00:00','0000-00-00 00:00:00','j','j'),
|
|
(3,10,10,'2000-12-18','2000-12-18','22:16:19','22:16:19','2006-11-04 15:42:50','2006-11-04 15:42:50','aew','aew'),
|
|
(4,0,0,'2001-09-18','2001-09-18','00:00:00','00:00:00','2004-03-23 13:23:35','2004-03-23 13:23:35',NULL,NULL),
|
|
(5,6,6,'2007-08-16','2007-08-16','22:13:38','22:13:38','2004-08-19 11:01:28','2004-08-19 11:01:28','qu','qu');
|
|
select pk from t1 WHERE `varchar_key` > 'kr' group by pk;
|
|
pk
|
|
1
|
|
5
|
|
select pk from t1 WHERE `int_nokey` IS NULL OR `varchar_key` > 'kr' group by pk;
|
|
pk
|
|
1
|
|
5
|
|
drop table t1;
|
|
#
|
|
# BUG#39447: Error with NOT NULL condition and LIMIT 1
|
|
#
|
|
CREATE TABLE t1 (
|
|
id int(11) NOT NULL,
|
|
parent_id int(11) DEFAULT NULL,
|
|
name varchar(10) DEFAULT NULL,
|
|
PRIMARY KEY (id),
|
|
KEY ind_parent_id (parent_id)
|
|
) ENGINE=InnoDB;
|
|
insert into t1 (id, parent_id, name) values
|
|
(10,NULL,'A'),
|
|
(20,10,'B'),
|
|
(30,10,'C'),
|
|
(40,NULL,'D'),
|
|
(50,40,'E'),
|
|
(60,40,'F'),
|
|
(70,NULL,'J');
|
|
SELECT id FROM t1 WHERE parent_id IS NOT NULL ORDER BY id DESC LIMIT 1;
|
|
id
|
|
60
|
|
This must show type=index, extra=Using where
|
|
explain SELECT * FROM t1 FORCE INDEX (PRIMARY) WHERE parent_id IS NOT NULL ORDER BY id DESC LIMIT 1;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 SIMPLE t1 index NULL PRIMARY 4 NULL 1 Using where
|
|
SELECT * FROM t1 WHERE parent_id IS NOT NULL ORDER BY id DESC LIMIT 1;
|
|
id parent_id name
|
|
60 40 F
|
|
drop table t1;
|