mirror of
https://github.com/MariaDB/server.git
synced 2025-01-26 00:34:18 +01:00
a86599e1e4
- Make Mrr_ordered_index_reader() save the rowid across scan interruptions Also - Fix compiler warning for setup_buffer_sizes() - Add commented key_copy/key_restore for better handling of a similar issue with index record being destroyed by scan interruption (which causes incorrect evaluation of pushed index condition later on).
662 lines
18 KiB
Text
662 lines
18 KiB
Text
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
|
|
drop table if exists t4;
|
|
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;
|
|
#
|
|
# BUG#628785: multi_range_read.cc:430: int DsMrr_impl::dsmrr_init(): Assertion `do_sort_keys || do_rowid_fetch' failed
|
|
#
|
|
set @save_join_cache_level= @@join_cache_level;
|
|
set @save_optimizer_switch= @@optimizer_switch;
|
|
SET SESSION join_cache_level=9;
|
|
Warnings:
|
|
Warning 1292 Truncated incorrect join_cache_level value: '9'
|
|
SET SESSION optimizer_switch='mrr_sort_keys=off';
|
|
CREATE TABLE `t1` (
|
|
`pk` int(11) NOT NULL AUTO_INCREMENT,
|
|
`col_int_nokey` int(11) DEFAULT NULL,
|
|
`col_int_key` int(11) DEFAULT NULL,
|
|
`col_varchar_key` varchar(1) DEFAULT NULL,
|
|
`col_varchar_nokey` varchar(1) DEFAULT NULL,
|
|
PRIMARY KEY (`pk`),
|
|
KEY `col_varchar_key` (`col_varchar_key`,`col_int_key`)
|
|
) ENGINE=InnoDB AUTO_INCREMENT=101 DEFAULT CHARSET=latin1;
|
|
INSERT INTO `t1` VALUES (1,6,NULL,'r','r');
|
|
INSERT INTO `t1` VALUES (2,8,0,'c','c');
|
|
INSERT INTO `t1` VALUES (97,7,0,'z','z');
|
|
INSERT INTO `t1` VALUES (98,1,1,'j','j');
|
|
INSERT INTO `t1` VALUES (99,7,8,'c','c');
|
|
INSERT INTO `t1` VALUES (100,2,5,'f','f');
|
|
SELECT table1 .`col_varchar_key`
|
|
FROM t1 table1 STRAIGHT_JOIN ( t1 table3 JOIN t1 table4 ON table4 .`pk` = table3 .`col_int_nokey` ) ON table4 .`col_varchar_nokey` ;
|
|
col_varchar_key
|
|
DROP TABLE t1;
|
|
set join_cache_level=@save_join_cache_level;
|
|
set optimizer_switch=@save_optimizer_switch;
|
|
#
|
|
# BUG#623300: Query with join_cache_level = 6 returns extra rows in maria-5.3-dsmrr-cpk
|
|
#
|
|
CREATE TABLE t1 (
|
|
pk int(11) NOT NULL AUTO_INCREMENT,
|
|
col_int_nokey int(11) DEFAULT NULL,
|
|
PRIMARY KEY (pk)
|
|
) ENGINE=InnoDB;
|
|
INSERT INTO t1 VALUES (10,7);
|
|
INSERT INTO t1 VALUES (11,1);
|
|
INSERT INTO t1 VALUES (12,5);
|
|
INSERT INTO t1 VALUES (13,3);
|
|
INSERT INTO t1 VALUES (14,6);
|
|
INSERT INTO t1 VALUES (15,92);
|
|
INSERT INTO t1 VALUES (16,7);
|
|
INSERT INTO t1 VALUES (17,NULL);
|
|
INSERT INTO t1 VALUES (18,3);
|
|
INSERT INTO t1 VALUES (19,5);
|
|
INSERT INTO t1 VALUES (20,1);
|
|
INSERT INTO t1 VALUES (21,2);
|
|
INSERT INTO t1 VALUES (22,NULL);
|
|
INSERT INTO t1 VALUES (23,1);
|
|
INSERT INTO t1 VALUES (24,0);
|
|
INSERT INTO t1 VALUES (25,210);
|
|
INSERT INTO t1 VALUES (26,8);
|
|
INSERT INTO t1 VALUES (27,7);
|
|
INSERT INTO t1 VALUES (28,5);
|
|
INSERT INTO t1 VALUES (29,NULL);
|
|
CREATE TABLE t2 (
|
|
pk int(11) NOT NULL AUTO_INCREMENT,
|
|
col_int_nokey int(11) DEFAULT NULL,
|
|
PRIMARY KEY (pk)
|
|
) ENGINE=InnoDB;
|
|
INSERT INTO t2 VALUES (1,NULL);
|
|
INSERT INTO t2 VALUES (2,7);
|
|
INSERT INTO t2 VALUES (3,9);
|
|
INSERT INTO t2 VALUES (4,7);
|
|
INSERT INTO t2 VALUES (5,4);
|
|
INSERT INTO t2 VALUES (6,2);
|
|
INSERT INTO t2 VALUES (7,6);
|
|
INSERT INTO t2 VALUES (8,8);
|
|
INSERT INTO t2 VALUES (9,NULL);
|
|
INSERT INTO t2 VALUES (10,5);
|
|
INSERT INTO t2 VALUES (11,NULL);
|
|
INSERT INTO t2 VALUES (12,6);
|
|
INSERT INTO t2 VALUES (13,188);
|
|
INSERT INTO t2 VALUES (14,2);
|
|
INSERT INTO t2 VALUES (15,1);
|
|
INSERT INTO t2 VALUES (16,1);
|
|
INSERT INTO t2 VALUES (17,0);
|
|
INSERT INTO t2 VALUES (18,9);
|
|
INSERT INTO t2 VALUES (19,NULL);
|
|
INSERT INTO t2 VALUES (20,4);
|
|
set @my_save_join_cache_level= @@join_cache_level;
|
|
SET join_cache_level = 0;
|
|
SELECT table2.col_int_nokey
|
|
FROM t1 table1 JOIN t2 table2 ON table2.pk = table1.col_int_nokey
|
|
WHERE table1.pk ;
|
|
col_int_nokey
|
|
2
|
|
4
|
|
4
|
|
4
|
|
6
|
|
6
|
|
6
|
|
7
|
|
8
|
|
9
|
|
9
|
|
NULL
|
|
NULL
|
|
NULL
|
|
SET join_cache_level = 6;
|
|
SELECT table2.col_int_nokey
|
|
FROM t1 table1 JOIN t2 table2 ON table2.pk = table1.col_int_nokey
|
|
WHERE table1.pk ;
|
|
col_int_nokey
|
|
2
|
|
4
|
|
4
|
|
4
|
|
6
|
|
6
|
|
6
|
|
7
|
|
8
|
|
9
|
|
9
|
|
NULL
|
|
NULL
|
|
NULL
|
|
set join_cache_level= @my_save_join_cache_level;
|
|
drop table t1, t2;
|
|
#
|
|
# BUG#623315: Query returns less rows when run with join_cache_level=6 on maria-5.3-dsmrr-cpk
|
|
#
|
|
CREATE TABLE t1 (
|
|
pk int(11) NOT NULL AUTO_INCREMENT,
|
|
col_int_nokey int(11) DEFAULT NULL,
|
|
col_int_key int(11) DEFAULT NULL,
|
|
col_varchar_key varchar(1) DEFAULT NULL,
|
|
PRIMARY KEY (pk),
|
|
KEY col_int_key (col_int_key),
|
|
KEY col_varchar_key (col_varchar_key,col_int_key)
|
|
) ENGINE=InnoDB;
|
|
INSERT INTO t1 VALUES (10,7,8,'v');
|
|
INSERT INTO t1 VALUES (11,1,9,'r');
|
|
INSERT INTO t1 VALUES (12,5,9,'a');
|
|
INSERT INTO t1 VALUES (13,3,186,'m');
|
|
INSERT INTO t1 VALUES (14,6,NULL,'y');
|
|
INSERT INTO t1 VALUES (15,92,2,'j');
|
|
INSERT INTO t1 VALUES (16,7,3,'d');
|
|
INSERT INTO t1 VALUES (17,NULL,0,'z');
|
|
INSERT INTO t1 VALUES (18,3,133,'e');
|
|
INSERT INTO t1 VALUES (19,5,1,'h');
|
|
INSERT INTO t1 VALUES (20,1,8,'b');
|
|
INSERT INTO t1 VALUES (21,2,5,'s');
|
|
INSERT INTO t1 VALUES (22,NULL,5,'e');
|
|
INSERT INTO t1 VALUES (23,1,8,'j');
|
|
INSERT INTO t1 VALUES (24,0,6,'e');
|
|
INSERT INTO t1 VALUES (25,210,51,'f');
|
|
INSERT INTO t1 VALUES (26,8,4,'v');
|
|
INSERT INTO t1 VALUES (27,7,7,'x');
|
|
INSERT INTO t1 VALUES (28,5,6,'m');
|
|
INSERT INTO t1 VALUES (29,NULL,4,'c');
|
|
set @my_save_join_cache_level= @@join_cache_level;
|
|
SET join_cache_level=6;
|
|
select count(*) from
|
|
(SELECT table2.pk FROM
|
|
t1 LEFT JOIN t1 table2 JOIN t1 table3 ON table3.col_varchar_key = table2.col_varchar_key
|
|
ON table3.col_int_nokey) foo;
|
|
count(*)
|
|
480
|
|
SET join_cache_level=0;
|
|
select count(*) from
|
|
(SELECT table2.pk FROM
|
|
t1 LEFT JOIN t1 table2 JOIN t1 table3 ON table3.col_varchar_key = table2.col_varchar_key
|
|
ON table3.col_int_nokey) foo;
|
|
count(*)
|
|
480
|
|
set join_cache_level= @my_save_join_cache_level;
|
|
drop table t1;
|
|
#
|
|
# BUG#671340: Diverging results in with mrr_sort_keys=ON|OFF and join_cache_level=5
|
|
#
|
|
CREATE TABLE t1 (
|
|
pk int(11) NOT NULL AUTO_INCREMENT,
|
|
col_int_key int(11) NOT NULL,
|
|
col_varchar_key varchar(1) NOT NULL,
|
|
col_varchar_nokey varchar(1) NOT NULL,
|
|
PRIMARY KEY (pk),
|
|
KEY col_int_key (col_int_key),
|
|
KEY col_varchar_key (col_varchar_key,col_int_key)
|
|
) ENGINE=InnoDB;
|
|
INSERT INTO t1 VALUES
|
|
(10,8,'v','v'),
|
|
(11,8,'f','f'),
|
|
(12,5,'v','v'),
|
|
(13,8,'s','s'),
|
|
(14,8,'a','a'),
|
|
(15,6,'p','p'),
|
|
(16,7,'z','z'),
|
|
(17,2,'a','a'),
|
|
(18,5,'h','h'),
|
|
(19,7,'h','h'),
|
|
(20,2,'v','v'),
|
|
(21,9,'v','v'),
|
|
(22,142,'b','b'),
|
|
(23,3,'y','y'),
|
|
(24,0,'v','v'),
|
|
(25,3,'m','m'),
|
|
(26,5,'z','z'),
|
|
(27,9,'n','n'),
|
|
(28,1,'d','d'),
|
|
(29,107,'a','a');
|
|
CREATE TABLE t2 (
|
|
pk int(11) NOT NULL AUTO_INCREMENT,
|
|
col_int_key int(11) NOT NULL,
|
|
col_varchar_key varchar(1) NOT NULL,
|
|
col_varchar_nokey varchar(1) NOT NULL,
|
|
PRIMARY KEY (pk),
|
|
KEY col_int_key (col_int_key),
|
|
KEY col_varchar_key (col_varchar_key,col_int_key)
|
|
) ENGINE=InnoDB;
|
|
INSERT INTO t2 VALUES
|
|
(1,9,'x','x'),
|
|
(2,5,'g','g'),
|
|
(3,1,'o','o'),
|
|
(4,0,'g','g'),
|
|
(5,1,'v','v'),
|
|
(6,190,'m','m'),
|
|
(7,6,'x','x'),
|
|
(8,3,'c','c'),
|
|
(9,4,'z','z'),
|
|
(10,3,'i','i'),
|
|
(11,186,'x','x'),
|
|
(12,1,'g','g'),
|
|
(13,8,'q','q'),
|
|
(14,226,'m','m'),
|
|
(15,133,'p','p'),
|
|
(16,6,'e','e'),
|
|
(17,3,'t','t'),
|
|
(18,8,'j','j'),
|
|
(19,5,'h','h'),
|
|
(20,7,'w','w');
|
|
SELECT count(*), sum(table1.col_int_key*table2.pk)
|
|
FROM
|
|
t2 AS table1, t1 AS table2, t2 AS table3
|
|
WHERE
|
|
table3.col_varchar_nokey = table2.col_varchar_key AND table3.pk > table2.col_varchar_nokey ;
|
|
count(*) sum(table1.col_int_key*table2.pk)
|
|
240 185955
|
|
set @my_save_join_cache_level= @@join_cache_level;
|
|
set @my_save_join_buffer_size= @@join_buffer_size;
|
|
set join_cache_level=6;
|
|
set join_buffer_size=1500;
|
|
SELECT count(*), sum(table1.col_int_key*table2.pk)
|
|
FROM
|
|
t2 AS table1, t1 AS table2, t2 AS table3
|
|
WHERE
|
|
table3.col_varchar_nokey = table2.col_varchar_key AND table3.pk > table2.col_varchar_nokey ;
|
|
count(*) sum(table1.col_int_key*table2.pk)
|
|
240 185955
|
|
drop table t1,t2;
|
|
set join_cache_level=@my_save_join_cache_level;
|
|
set join_buffer_size=@my_save_join_buffer_size;
|