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791 lines
27 KiB
791 lines
27 KiB
set optimizer_switch='mrr=on,mrr_cost_based=off';
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set @save_storage_engine= @@default_storage_engine;
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set default_storage_engine=InnoDB;
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create table t1(a int) charset utf8mb4;
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show create table t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` int(11) DEFAULT NULL
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
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create table t2(a int);
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insert into t2 select A.a + 10*(B.a + 10*C.a) from t1 A, t1 B, t1 C;
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create table t3 (
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a char(8) not null, b char(8) not null, filler char(200),
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key(a)
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);
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insert into t3 select @a:=concat('c-', 1000+ A.a, '=w'), @a, 'filler' from t2 A;
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Warnings:
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Warning 1287 Setting user variables within expressions is deprecated and will be removed in a future release. Consider alternatives: 'SET variable=expression, ...', or 'SELECT expression(s) INTO variables(s)'.
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insert into t3 select concat('c-', 1000+A.a, '=w'), concat('c-', 2000+A.a, '=w'),
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'filler-1' from t2 A;
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insert into t3 select concat('c-', 1000+A.a, '=w'), concat('c-', 3000+A.a, '=w'),
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'filler-2' from t2 A;
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select a,filler from t3 where a >= 'c-9011=w';
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a filler
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select a,filler from t3 where a >= 'c-1011=w' and a <= 'c-1015=w';
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a filler
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c-1011=w filler
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c-1011=w filler-1
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c-1011=w filler-2
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c-1012=w filler
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c-1012=w filler-1
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c-1012=w filler-2
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c-1013=w filler
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c-1013=w filler-1
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c-1013=w filler-2
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c-1014=w filler
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c-1014=w filler-1
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c-1014=w filler-2
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c-1015=w filler
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c-1015=w filler-1
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c-1015=w filler-2
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select a,filler from t3 where (a>='c-1011=w' and a <= 'c-1013=w') or
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(a>='c-1014=w' and a <= 'c-1015=w');
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a filler
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c-1011=w filler
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c-1011=w filler-1
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c-1011=w filler-2
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c-1012=w filler
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c-1012=w filler-1
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c-1012=w filler-2
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c-1013=w filler
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c-1013=w filler-1
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c-1013=w filler-2
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c-1014=w filler
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c-1014=w filler-1
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c-1014=w filler-2
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c-1015=w filler
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c-1015=w filler-1
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c-1015=w filler-2
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insert into t3 values ('c-1013=z', 'c-1013=z', 'err');
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insert into t3 values ('a-1014=w', 'a-1014=w', 'err');
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select a,filler from t3 where (a>='c-1011=w' and a <= 'c-1013=w') or
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(a>='c-1014=w' and a <= 'c-1015=w');
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a filler
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c-1011=w filler
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c-1011=w filler-1
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c-1011=w filler-2
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c-1012=w filler
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c-1012=w filler-1
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c-1012=w filler-2
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c-1013=w filler
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c-1013=w filler-1
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c-1013=w filler-2
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c-1014=w filler
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c-1014=w filler-1
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c-1014=w filler-2
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c-1015=w filler
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c-1015=w filler-1
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c-1015=w filler-2
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delete from t3 where b in ('c-1013=z', 'a-1014=w');
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select a,filler from t3 where a='c-1011=w' or a='c-1012=w' or a='c-1013=w' or
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a='c-1014=w' or a='c-1015=w';
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a filler
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c-1011=w filler
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c-1011=w filler-1
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c-1011=w filler-2
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c-1012=w filler
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c-1012=w filler-1
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c-1012=w filler-2
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c-1013=w filler
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c-1013=w filler-1
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c-1013=w filler-2
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c-1014=w filler
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c-1014=w filler-1
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c-1014=w filler-2
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c-1015=w filler
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c-1015=w filler-1
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c-1015=w filler-2
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insert into t3 values ('c-1013=w', 'del-me', 'inserted');
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select a,filler from t3 where a='c-1011=w' or a='c-1012=w' or a='c-1013=w' or
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a='c-1014=w' or a='c-1015=w';
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a filler
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c-1011=w filler
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c-1011=w filler-1
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c-1011=w filler-2
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c-1012=w filler
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c-1012=w filler-1
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c-1012=w filler-2
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c-1013=w filler
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c-1013=w filler-1
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c-1013=w filler-2
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c-1013=w inserted
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c-1014=w filler
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c-1014=w filler-1
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c-1014=w filler-2
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c-1015=w filler
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c-1015=w filler-1
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c-1015=w filler-2
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delete from t3 where b='del-me';
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alter table t3 add primary key(b);
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select b,filler from t3 where (b>='c-1011=w' and b<= 'c-1018=w') or
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b IN ('c-1019=w', 'c-1020=w', 'c-1021=w',
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'c-1022=w', 'c-1023=w', 'c-1024=w');
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b filler
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c-1011=w filler
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c-1012=w filler
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c-1013=w filler
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c-1014=w filler
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c-1015=w filler
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c-1016=w filler
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c-1017=w filler
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c-1018=w filler
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c-1019=w filler
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c-1020=w filler
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c-1021=w filler
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c-1022=w filler
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c-1023=w filler
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c-1024=w filler
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select b,filler from t3 where (b>='c-1011=w' and b<= 'c-1020=w') or
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b IN ('c-1021=w', 'c-1022=w', 'c-1023=w');
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b filler
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c-1011=w filler
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c-1012=w filler
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c-1013=w filler
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c-1014=w filler
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c-1015=w filler
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c-1016=w filler
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c-1017=w filler
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c-1018=w filler
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c-1019=w filler
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c-1020=w filler
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c-1021=w filler
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c-1022=w filler
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c-1023=w filler
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select b,filler from t3 where (b>='c-1011=w' and b<= 'c-1018=w') or
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b IN ('c-1019=w', 'c-1020=w') or
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(b>='c-1021=w' and b<= 'c-1023=w');
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b filler
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c-1011=w filler
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c-1012=w filler
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c-1013=w filler
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c-1014=w filler
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c-1015=w filler
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c-1016=w filler
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c-1017=w filler
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c-1018=w filler
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c-1019=w filler
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c-1020=w filler
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c-1021=w filler
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c-1022=w filler
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c-1023=w filler
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create table t4 (a varchar(10), b int, c char(10), filler char(200),
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key idx1 (a, b, c)) charset utf8mb4;
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insert into t4 (filler) select concat('NULL-', 15-a) from t2 order by a limit 15;
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insert into t4 (a,b,c,filler)
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select 'b-1',NULL,'c-1', concat('NULL-', 15-a) from t2 order by a limit 15;
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insert into t4 (a,b,c,filler)
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select 'b-1',NULL,'c-222', concat('NULL-', 15-a) from t2 order by a limit 15;
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insert into t4 (a,b,c,filler)
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select 'bb-1',NULL,'cc-2', concat('NULL-', 15-a) from t2 order by a limit 15;
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insert into t4 (a,b,c,filler)
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select 'zz-1',NULL,'cc-2', 'filler-data' from t2 order by a limit 500;
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explain
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select * from t4 where a IS NULL and b IS NULL and (c IS NULL or c='no-such-row1'
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or c='no-such-row2');
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id select_type table partitions type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE t4 NULL range idx1 idx1 89 NULL 16 100.00 Using where; Using MRR
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Warnings:
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Note 1003 /* select#1 */ select `test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t4`.`c` AS `c`,`test`.`t4`.`filler` AS `filler` from `test`.`t4` where ((`test`.`t4`.`a` is null) and (`test`.`t4`.`b` is null) and ((`test`.`t4`.`c` is null) or (`test`.`t4`.`c` = 'no-such-row1') or (`test`.`t4`.`c` = 'no-such-row2')))
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select * from t4 where a IS NULL and b IS NULL and (c IS NULL or c='no-such-row1'
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or c='no-such-row2');
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a b c filler
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NULL NULL NULL NULL-15
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NULL NULL NULL NULL-14
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NULL NULL NULL NULL-13
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NULL NULL NULL NULL-12
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NULL NULL NULL NULL-11
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NULL NULL NULL NULL-10
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NULL NULL NULL NULL-9
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NULL NULL NULL NULL-8
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NULL NULL NULL NULL-7
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NULL NULL NULL NULL-6
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NULL NULL NULL NULL-5
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NULL NULL NULL NULL-4
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NULL NULL NULL NULL-3
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NULL NULL NULL NULL-2
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NULL NULL NULL NULL-1
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explain
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select * from t4 where (a ='b-1' or a='bb-1') and b IS NULL and (c='c-1' or c='cc-2');
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id select_type table partitions type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE t4 NULL range idx1 idx1 89 NULL 32 100.00 Using where; Using MRR
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Warnings:
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Note 1003 /* select#1 */ select `test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t4`.`c` AS `c`,`test`.`t4`.`filler` AS `filler` from `test`.`t4` where (((`test`.`t4`.`a` = 'b-1') or (`test`.`t4`.`a` = 'bb-1')) and (`test`.`t4`.`b` is null) and ((`test`.`t4`.`c` = 'c-1') or (`test`.`t4`.`c` = 'cc-2')))
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select * from t4 where (a ='b-1' or a='bb-1') and b IS NULL and (c='c-1' or c='cc-2');
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a b c filler
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b-1 NULL c-1 NULL-15
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b-1 NULL c-1 NULL-14
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b-1 NULL c-1 NULL-13
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b-1 NULL c-1 NULL-12
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b-1 NULL c-1 NULL-11
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b-1 NULL c-1 NULL-10
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b-1 NULL c-1 NULL-9
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b-1 NULL c-1 NULL-8
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b-1 NULL c-1 NULL-7
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b-1 NULL c-1 NULL-6
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b-1 NULL c-1 NULL-5
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b-1 NULL c-1 NULL-4
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b-1 NULL c-1 NULL-3
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b-1 NULL c-1 NULL-2
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b-1 NULL c-1 NULL-1
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bb-1 NULL cc-2 NULL-15
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bb-1 NULL cc-2 NULL-14
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bb-1 NULL cc-2 NULL-13
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bb-1 NULL cc-2 NULL-12
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bb-1 NULL cc-2 NULL-11
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bb-1 NULL cc-2 NULL-10
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bb-1 NULL cc-2 NULL-9
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bb-1 NULL cc-2 NULL-8
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bb-1 NULL cc-2 NULL-7
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bb-1 NULL cc-2 NULL-6
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bb-1 NULL cc-2 NULL-5
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bb-1 NULL cc-2 NULL-4
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bb-1 NULL cc-2 NULL-3
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bb-1 NULL cc-2 NULL-2
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bb-1 NULL cc-2 NULL-1
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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');
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a b c filler
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b-1 NULL c-1 NULL-15
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b-1 NULL c-1 NULL-14
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b-1 NULL c-1 NULL-13
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b-1 NULL c-1 NULL-12
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b-1 NULL c-1 NULL-11
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b-1 NULL c-1 NULL-10
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b-1 NULL c-1 NULL-9
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b-1 NULL c-1 NULL-8
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b-1 NULL c-1 NULL-7
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b-1 NULL c-1 NULL-6
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b-1 NULL c-1 NULL-5
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b-1 NULL c-1 NULL-4
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b-1 NULL c-1 NULL-3
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b-1 NULL c-1 NULL-2
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b-1 NULL c-1 NULL-1
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bb-1 NULL cc-2 NULL-15
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bb-1 NULL cc-2 NULL-14
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bb-1 NULL cc-2 NULL-13
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bb-1 NULL cc-2 NULL-12
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bb-1 NULL cc-2 NULL-11
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bb-1 NULL cc-2 NULL-10
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bb-1 NULL cc-2 NULL-9
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bb-1 NULL cc-2 NULL-8
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bb-1 NULL cc-2 NULL-7
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bb-1 NULL cc-2 NULL-6
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bb-1 NULL cc-2 NULL-5
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bb-1 NULL cc-2 NULL-4
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bb-1 NULL cc-2 NULL-3
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bb-1 NULL cc-2 NULL-2
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bb-1 NULL cc-2 NULL-1
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drop table t1, t2, t3, t4;
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create table t1 (a int, b int not null,unique key (a,b),index(b));
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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);
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Warnings:
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Warning 1062 Duplicate entry '6-6' for key 'a'
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create table t2 like t1;
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insert into t2 select * from t1;
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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));
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select * from t1 where a is null;
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a b c
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NULL 7 0
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NULL 9 0
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NULL 9 0
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select * from t1 where (a is null or a > 0 and a < 3) and b > 7 limit 3;
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a b c
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NULL 9 0
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NULL 9 0
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select * from t1 where a is null and b=9 or a is null and b=7 limit 3;
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a b c
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NULL 7 0
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NULL 9 0
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NULL 9 0
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drop table t1, t2;
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CREATE TABLE t1 (
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ID int(10) unsigned NOT NULL AUTO_INCREMENT,
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col1 int(10) unsigned DEFAULT NULL,
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key1 int(10) unsigned NOT NULL DEFAULT '0',
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key2 int(10) unsigned DEFAULT NULL,
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text1 text,
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text2 text,
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col2 smallint(6) DEFAULT '100',
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col3 enum('headers','bodyandsubject') NOT NULL DEFAULT 'bodyandsubject',
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col4 tinyint(3) unsigned NOT NULL DEFAULT '0',
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PRIMARY KEY (ID),
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KEY (key1),
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KEY (key2)
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) AUTO_INCREMENT=6 DEFAULT CHARSET=utf8;
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Warnings:
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Warning 1681 Integer display width is deprecated and will be removed in a future release.
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Warning 1681 Integer display width is deprecated and will be removed in a future release.
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Warning 1681 Integer display width is deprecated and will be removed in a future release.
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Warning 1681 Integer display width is deprecated and will be removed in a future release.
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Warning 1681 Integer display width is deprecated and will be removed in a future release.
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Warning 1681 Integer display width is deprecated and will be removed in a future release.
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Warning 3719 'utf8' is currently an alias for the character set UTF8MB3, but will be an alias for UTF8MB4 in a future release. Please consider using UTF8MB4 in order to be unambiguous.
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INSERT INTO t1 VALUES
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(1,NULL,1130,NULL,'Hello',NULL,100,'bodyandsubject',0),
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(2,NULL,1130,NULL,'bye',NULL,100,'bodyandsubject',0),
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(3,NULL,1130,NULL,'red',NULL,100,'bodyandsubject',0),
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(4,NULL,1130,NULL,'yellow',NULL,100,'bodyandsubject',0),
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(5,NULL,1130,NULL,'blue',NULL,100,'bodyandsubject',0);
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select * FROM t1 WHERE key1=1130 AND col1 IS NULL ORDER BY text1;
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ID col1 key1 key2 text1 text2 col2 col3 col4
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5 NULL 1130 NULL blue NULL 100 bodyandsubject 0
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2 NULL 1130 NULL bye NULL 100 bodyandsubject 0
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1 NULL 1130 NULL Hello NULL 100 bodyandsubject 0
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3 NULL 1130 NULL red NULL 100 bodyandsubject 0
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4 NULL 1130 NULL yellow NULL 100 bodyandsubject 0
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drop table t1;
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BUG#37851: Crash in test_if_skip_sort_order tab->select is zero
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CREATE TABLE t1 (
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pk int(11) NOT NULL AUTO_INCREMENT,
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PRIMARY KEY (pk)
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);
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Warnings:
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Warning 1681 Integer display width is deprecated and will be removed in a future release.
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INSERT INTO t1 VALUES (1);
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CREATE TABLE t2 (
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pk int(11) NOT NULL AUTO_INCREMENT,
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int_key int(11) DEFAULT NULL,
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PRIMARY KEY (pk),
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KEY int_key (int_key)
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);
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Warnings:
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Warning 1681 Integer display width is deprecated and will be removed in a future release.
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Warning 1681 Integer display width is deprecated and will be removed in a future release.
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INSERT INTO t2 VALUES (1,1),(2,6),(3,0);
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EXPLAIN
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SELECT MIN(t1.pk)
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FROM t1 WHERE EXISTS (
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SELECT t2.pk
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FROM t2
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WHERE t2.int_key IS NULL
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GROUP BY t2.pk
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);
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id select_type table partitions type possible_keys key key_len ref rows filtered Extra
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1 PRIMARY NULL NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
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2 SUBQUERY t2 NULL ref int_key int_key 5 const 1 100.00 Using where; Using index
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Warnings:
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Note 1003 /* select#1 */ select min(`test`.`t1`.`pk`) AS `MIN(t1.pk)` from `test`.`t1` where false
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DROP TABLE t1, t2;
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#
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# BUG#42048 Discrepancy between MyISAM and Maria's ICP implementation
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#
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create table t0 (a int);
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insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
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create table t1 (a int, b char(20), filler char(200), key(a,b(10)));
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insert into t1 select A.a + 10*(B.a + 10*C.a), 'bbb','filler' from t0 A, t0 B, t0 C;
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update t1 set b=repeat(char(65+a), 20) where a < 25;
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This must show range + using index condition:
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explain select * from t1 where a < 10 and b = repeat(char(65+a), 20);
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id select_type table partitions type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE t1 NULL range a a 5 NULL x x Using where
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Warnings:
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Note 1003 /* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t1`.`filler` AS `filler` from `test`.`t1` where ((`test`.`t1`.`a` < 10) and (`test`.`t1`.`b` = repeat(char((65 + `test`.`t1`.`a`)),20)))
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select * from t1 where a < 10 and b = repeat(char(65+a), 20);
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a b filler
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0 AAAAAAAAAAAAAAAAAAAA filler
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1 BBBBBBBBBBBBBBBBBBBB filler
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2 CCCCCCCCCCCCCCCCCCCC filler
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3 DDDDDDDDDDDDDDDDDDDD filler
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4 EEEEEEEEEEEEEEEEEEEE filler
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5 FFFFFFFFFFFFFFFFFFFF filler
|
|
6 GGGGGGGGGGGGGGGGGGGG filler
|
|
7 HHHHHHHHHHHHHHHHHHHH filler
|
|
8 IIIIIIIIIIIIIIIIIIII filler
|
|
9 JJJJJJJJJJJJJJJJJJJJ filler
|
|
drop table t0,t1;
|
|
#
|
|
# BUG#41136: ORDER BY + range access: EXPLAIN shows "Using MRR" while MRR is actually not used
|
|
#
|
|
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, key(a));
|
|
insert into t1 select A.a + 10 *(B.a + 10*C.a), A.a + 10 *(B.a + 10*C.a) from t0 A, t0 B, t0 C;
|
|
This mustn't show "Using MRR":
|
|
explain select * from t1 where a < 20 order by a;
|
|
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
|
|
1 SIMPLE t1 NULL range a a 5 NULL 20 100.00 Using where
|
|
Warnings:
|
|
Note 1003 /* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` where (`test`.`t1`.`a` < 20) order by `test`.`t1`.`a`
|
|
drop table t0, t1;
|
|
set @read_rnd_buffer_size_save= @@read_rnd_buffer_size;
|
|
set read_rnd_buffer_size=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 k1(a,b,c) ) charset utf8mb4;
|
|
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 force index (k1)
|
|
where a>='a-1000-a' and a <'a-1001-a';
|
|
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
|
|
1 SIMPLE t2 NULL range k1 k1 33 NULL 100 100.00 Using where; Using MRR
|
|
Warnings:
|
|
Note 1003 /* select#1 */ select count((length(`test`.`t2`.`a`) + length(`test`.`t2`.`filler`))) AS `count(length(a) + length(filler))` from `test`.`t2` FORCE INDEX (`k1`) where ((`test`.`t2`.`a` >= 'a-1000-a') and (`test`.`t2`.`a` < 'a-1001-a'))
|
|
select count(length(a) + length(filler))
|
|
from t2 force index (k1)
|
|
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)) charset latin1;
|
|
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 partitions type possible_keys key key_len ref rows filtered Extra
|
|
1 SIMPLE t2 NULL range d d 5 NULL # 100.00 Using where
|
|
Warnings:
|
|
Note 1003 /* select#1 */ select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t2`.`c` AS `c`,`test`.`t2`.`d` AS `d`,`test`.`t2`.`filler` AS `filler` from `test`.`t2` FORCE INDEX (`d`) where (`test`.`t2`.`d` < 10)
|
|
drop table t2;
|
|
drop table t1;
|
|
set @@read_rnd_buffer_size= @read_rnd_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));
|
|
select * from t1 where (f3>=5 and f3<=10) or (f3>=1 and f3<=4);
|
|
f1 f2 f3 f4
|
|
1 1 1 A
|
|
10 10 10 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
|
|
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`)
|
|
);
|
|
Warnings:
|
|
Warning 1681 Integer display width is deprecated and will be removed in a future release.
|
|
Warning 1681 Integer display width is deprecated and will be removed in a future release.
|
|
Warning 1681 Integer display width is deprecated and will be removed in a future release.
|
|
INSERT IGNORE 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');
|
|
Warnings:
|
|
Warning 1264 Out of range value for column 'date_key' at row 2
|
|
Warning 1264 Out of range value for column 'date_nokey' at row 2
|
|
Warning 1264 Out of range value for column 'datetime_key' at row 2
|
|
Warning 1264 Out of range value for column 'datetime_nokey' at row 2
|
|
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)
|
|
);
|
|
Warnings:
|
|
Warning 1681 Integer display width is deprecated and will be removed in a future release.
|
|
Warning 1681 Integer display width is deprecated and will be removed in a future release.
|
|
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 WHERE parent_id IS NOT NULL ORDER BY id DESC LIMIT 1;
|
|
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
|
|
1 SIMPLE t1 NULL index ind_parent_id PRIMARY 4 NULL 1 57.14 Using where; Backward index scan
|
|
Warnings:
|
|
Note 1003 /* select#1 */ select `test`.`t1`.`id` AS `id`,`test`.`t1`.`parent_id` AS `parent_id`,`test`.`t1`.`name` AS `name` from `test`.`t1` where (`test`.`t1`.`parent_id` is not null) order by `test`.`t1`.`id` desc limit 1
|
|
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#50381 "Assertion failing in handler.h:1283:
|
|
# void COST_VECT::add_io(double, double)"
|
|
#
|
|
CREATE TABLE t1 (
|
|
c1 INT NOT NULL,
|
|
c2 VARCHAR(1) DEFAULT NULL,
|
|
PRIMARY KEY (c1)
|
|
);
|
|
CREATE TABLE t2 (
|
|
c1 INT NOT NULL,
|
|
c2 VARCHAR(1) DEFAULT NULL,
|
|
PRIMARY KEY (c1)
|
|
);
|
|
INSERT INTO t2 VALUES (10,'v');
|
|
INSERT INTO t2 VALUES (11,'r');
|
|
SELECT t1.c2
|
|
FROM t2 STRAIGHT_JOIN t1 ON t1.c1 < t2.c1;
|
|
c2
|
|
DROP TABLE t1, t2;
|
|
#
|
|
# Bug#12321461: CRASH IN DSMRR_IMPL::DSMRR_INIT ON SELECT STRAIGHT_JOIN
|
|
#
|
|
set @save_optimizer_switch = @@optimizer_switch;
|
|
set optimizer_switch='block_nested_loop=off,batched_key_access=off';
|
|
CREATE TABLE t1 (
|
|
pk INTEGER,
|
|
c1 VARCHAR(1) NOT NULL,
|
|
PRIMARY KEY (pk)
|
|
);
|
|
CREATE TABLE t2 (
|
|
c1 VARCHAR(1) NOT NULL
|
|
);
|
|
INSERT INTO t2 VALUES ('v'), ('c');
|
|
EXPLAIN SELECT STRAIGHT_JOIN t1.c1
|
|
FROM t1 RIGHT OUTER JOIN t2 ON t1.c1 = t2.c1
|
|
WHERE t1.pk > 176;
|
|
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
|
|
1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 2 100.00 NULL
|
|
1 SIMPLE t1 NULL range PRIMARY PRIMARY 4 NULL 1 100.00 Using where
|
|
Warnings:
|
|
Note 1003 /* select#1 */ select straight_join `test`.`t1`.`c1` AS `c1` from `test`.`t2` join `test`.`t1` where ((`test`.`t1`.`c1` = `test`.`t2`.`c1`) and (`test`.`t1`.`pk` > 176))
|
|
SELECT STRAIGHT_JOIN t1.c1
|
|
FROM t1 RIGHT OUTER JOIN t2 ON t1.c1 = t2.c1
|
|
WHERE t1.pk > 176;
|
|
c1
|
|
DROP TABLE t1,t2;
|
|
set optimizer_switch= @save_optimizer_switch;
|
|
#
|
|
# Bug#13249966 MRR: RANDOM ERROR DUE TO UNINITIALIZED RES WITH
|
|
# SMALL READ_RND_BUFFER_SIZE
|
|
#
|
|
set @read_rnd_buffer_size_save= @@read_rnd_buffer_size;
|
|
set read_rnd_buffer_size=1;
|
|
select @@read_rnd_buffer_size;
|
|
@@read_rnd_buffer_size
|
|
1
|
|
CREATE TABLE t1 (
|
|
i1 INTEGER NOT NULL,
|
|
i2 INTEGER NOT NULL,
|
|
KEY (i2)
|
|
);
|
|
INSERT INTO t1 VALUES (0,1),(1,2),(2,3);
|
|
EXPLAIN SELECT i1
|
|
FROM t1
|
|
WHERE i2 > 2;
|
|
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
|
|
1 SIMPLE t1 NULL range i2 i2 4 NULL 1 100.00 Using where
|
|
Warnings:
|
|
Note 1003 /* select#1 */ select `test`.`t1`.`i1` AS `i1` from `test`.`t1` where (`test`.`t1`.`i2` > 2)
|
|
SELECT i1
|
|
FROM t1
|
|
WHERE i2 > 2;
|
|
i1
|
|
2
|
|
DROP TABLE t1;
|
|
set @@read_rnd_buffer_size= @read_rnd_buffer_size_save;
|
|
select @@read_rnd_buffer_size;
|
|
@@read_rnd_buffer_size
|
|
262144
|
|
#
|
|
# Bug 12365385 STRAIGHT_JOIN QUERY QUICKLY EXHAUSTS SYSTEM+VIRT.
|
|
# MEMORY LEADING TO SYSTEM CRASH
|
|
#
|
|
CREATE TABLE ten (a INTEGER);
|
|
INSERT INTO ten VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
|
|
CREATE TABLE t1 (
|
|
pk INTEGER NOT NULL,
|
|
i1 INTEGER NOT NULL,
|
|
c1 VARCHAR(10) NOT NULL,
|
|
PRIMARY KEY (pk)
|
|
) charset latin1;
|
|
INSERT INTO t1
|
|
SELECT a, 1, 'MySQL' FROM ten;
|
|
CREATE TABLE t2 (
|
|
pk INTEGER NOT NULL,
|
|
c1 VARCHAR(10) NOT NULL,
|
|
c2 varchar(10) NOT NULL,
|
|
PRIMARY KEY (pk)
|
|
) charset latin1;
|
|
INSERT INTO t2
|
|
SELECT a, 'MySQL', 'MySQL' FROM ten;
|
|
CREATE TABLE t3 (
|
|
pk INTEGER NOT NULL,
|
|
c1 VARCHAR(10) NOT NULL,
|
|
PRIMARY KEY (pk)
|
|
) charset latin1;
|
|
INSERT INTO t3
|
|
SELECT a, 'MySQL' FROM ten;
|
|
CREATE TABLE t4 (
|
|
pk int(11) NOT NULL,
|
|
c1_key varchar(10) CHARACTER SET utf8 NOT NULL,
|
|
c2 varchar(10) NOT NULL,
|
|
c3 varchar(10) NOT NULL,
|
|
PRIMARY KEY (pk),
|
|
KEY k1 (c1_key)
|
|
) charset latin1;
|
|
Warnings:
|
|
Warning 1681 Integer display width is deprecated and will be removed in a future release.
|
|
Warning 3719 'utf8' is currently an alias for the character set UTF8MB3, but will be an alias for UTF8MB4 in a future release. Please consider using UTF8MB4 in order to be unambiguous.
|
|
CREATE TABLE t5 (
|
|
pk INTEGER NOT NULL,
|
|
c1 VARCHAR(10) NOT NULL,
|
|
PRIMARY KEY (pk)
|
|
) charset latin1;
|
|
INSERT INTO t5
|
|
SELECT a, 'MySQL' FROM ten;
|
|
EXPLAIN SELECT STRAIGHT_JOIN *
|
|
FROM
|
|
(t1 LEFT JOIN
|
|
(t2 LEFT JOIN
|
|
(t3 LEFT OUTER JOIN t4 ON t3.c1 <= t4.c1_key)
|
|
ON t2.c1 = t4.c3)
|
|
ON t1.c1 = t4.c2)
|
|
RIGHT OUTER JOIN t5 ON t2.c2 <= t5.c1
|
|
WHERE t1.i1 = 1;
|
|
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
|
|
1 SIMPLE t5 NULL ALL NULL NULL NULL NULL 10 100.00 NULL
|
|
1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 10 10.00 Using where; Using join buffer (Block Nested Loop)
|
|
1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 10 33.33 Using where; Using join buffer (Block Nested Loop)
|
|
1 SIMPLE t3 NULL ALL NULL NULL NULL NULL 10 100.00 Using join buffer (Block Nested Loop)
|
|
1 SIMPLE t4 NULL ALL k1 NULL NULL NULL 1 100.00 Range checked for each record (index map: 0x2)
|
|
Warnings:
|
|
Note 1003 /* select#1 */ select straight_join `test`.`t1`.`pk` AS `pk`,`test`.`t1`.`i1` AS `i1`,`test`.`t1`.`c1` AS `c1`,`test`.`t2`.`pk` AS `pk`,`test`.`t2`.`c1` AS `c1`,`test`.`t2`.`c2` AS `c2`,`test`.`t3`.`pk` AS `pk`,`test`.`t3`.`c1` AS `c1`,`test`.`t4`.`pk` AS `pk`,`test`.`t4`.`c1_key` AS `c1_key`,`test`.`t4`.`c2` AS `c2`,`test`.`t4`.`c3` AS `c3`,`test`.`t5`.`pk` AS `pk`,`test`.`t5`.`c1` AS `c1` from `test`.`t5` join `test`.`t1` join `test`.`t2` join `test`.`t3` join `test`.`t4` where ((`test`.`t4`.`c3` = `test`.`t2`.`c1`) and (`test`.`t4`.`c2` = `test`.`t1`.`c1`) and (`test`.`t1`.`i1` = 1) and (`test`.`t2`.`c2` <= `test`.`t5`.`c1`) and (convert(`test`.`t3`.`c1` using utf8) <= `test`.`t4`.`c1_key`))
|
|
SELECT STRAIGHT_JOIN *
|
|
FROM
|
|
(t1 LEFT JOIN
|
|
(t2 LEFT JOIN
|
|
(t3 LEFT OUTER JOIN t4 ON t3.c1 <= t4.c1_key)
|
|
ON t2.c1 = t4.c3)
|
|
ON t1.c1 = t4.c2)
|
|
RIGHT OUTER JOIN t5 ON t2.c2 <= t5.c1
|
|
WHERE t1.i1 = 1;
|
|
pk i1 c1 pk c1 c2 pk c1 pk c1_key c2 c3 pk c1
|
|
DROP TABLE ten, t1, t2, t3, t4, t5;
|
|
#
|
|
# Bug 18172819 CRASH ON DSMRR_IMPL::CHOOSE_MRR_IMPL IN SQL/HANDLER.CC
|
|
#
|
|
set @big_tables_save= @@big_tables;
|
|
set @optimizer_switch_save=@@optimizer_switch;
|
|
set big_tables=ON;
|
|
set optimizer_switch='derived_merge=off';
|
|
SELECT @@big_tables;
|
|
@@big_tables
|
|
1
|
|
CREATE TABLE t1 (
|
|
i1 INTEGER NOT NULL,
|
|
c1 VARCHAR(1)
|
|
) charset utf8mb4;
|
|
INSERT INTO t1 VALUES (1,'a'), (2, NULL);
|
|
CREATE TABLE t2 (
|
|
c1 VARCHAR(1),
|
|
i1 INTEGER NOT NULL,
|
|
KEY (c1)
|
|
) charset utf8mb4;
|
|
INSERT INTO t2 VALUES ('a', 1), (NULL, 2);
|
|
EXPLAIN SELECT *
|
|
FROM
|
|
( SELECT * FROM t1 ) AS d1
|
|
WHERE d1.c1 IN ( SELECT c1 FROM t2 )
|
|
AND d1.c1 IS NULL
|
|
ORDER BY d1.i1;
|
|
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
|
|
1 PRIMARY <derived2> NULL ref <auto_key0> <auto_key0> 7 const 1 100.00 Using where; Using filesort
|
|
3 DEPENDENT SUBQUERY t2 NULL index_subquery c1 c1 7 func 1 100.00 Using index
|
|
2 DERIVED t1 NULL ALL NULL NULL NULL NULL 2 100.00 NULL
|
|
Warnings:
|
|
Note 1003 /* select#1 */ select `d1`.`i1` AS `i1`,`d1`.`c1` AS `c1` from (/* select#2 */ select `test`.`t1`.`i1` AS `i1`,`test`.`t1`.`c1` AS `c1` from `test`.`t1`) `d1` where (<in_optimizer>(`d1`.`c1`,<exists>(<index_lookup>(<cache>(`d1`.`c1`) in t2 on c1))) and (`d1`.`c1` is null)) order by `d1`.`i1`
|
|
SELECT *
|
|
FROM
|
|
( SELECT * FROM t1 ) AS d1
|
|
WHERE d1.c1 IN ( SELECT c1 FROM t2 )
|
|
AND d1.c1 IS NULL
|
|
ORDER BY d1.i1;
|
|
i1 c1
|
|
DROP TABLE t1, t2;
|
|
set big_tables=@big_tables_save;
|
|
set optimizer_switch=@optimizer_switch_save;
|
|
#
|
|
# Bug#41029 "MRR: SELECT FOR UPDATE fails to lock gaps (InnoDB table)"
|
|
#
|
|
SET AUTOCOMMIT=0;
|
|
CREATE TABLE t1 (
|
|
dummy INT PRIMARY KEY,
|
|
a INT UNIQUE,
|
|
b INT
|
|
) ENGINE=InnoDB;
|
|
INSERT INTO t1 VALUES (1,1,1),(3,3,3),(5,5,5);
|
|
COMMIT;
|
|
SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;
|
|
SELECT @@transaction_isolation;
|
|
@@transaction_isolation
|
|
REPEATABLE-READ
|
|
START TRANSACTION;
|
|
EXPLAIN SELECT * FROM t1 WHERE a > 2 FOR UPDATE;
|
|
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
|
|
1 SIMPLE t1 NULL range a a 5 NULL 2 100.00 Using index condition
|
|
Warnings:
|
|
Note 1003 /* select#1 */ select `test`.`t1`.`dummy` AS `dummy`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` where (`test`.`t1`.`a` > 2)
|
|
SELECT * FROM t1 WHERE a > 2 FOR UPDATE;
|
|
dummy a b
|
|
3 3 3
|
|
5 5 5
|
|
SET AUTOCOMMIT=0;
|
|
START TRANSACTION;
|
|
INSERT INTO t1 VALUES (2,2,2);
|
|
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
|
|
ROLLBACK;
|
|
ROLLBACK;
|
|
DROP TABLE t1;
|
|
#
|
|
# Bug#54286 "Server crash at lock timeout with MRR"
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#
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SET AUTOCOMMIT=0;
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CREATE TABLE t1 (
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dummy INT PRIMARY KEY,
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a INT UNIQUE,
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b INT
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) ENGINE=InnoDB;
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COMMIT;
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INSERT INTO t1 VALUES (1,1,1),(3,3,3),(5,5,5);
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SET AUTOCOMMIT=0;
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SELECT * FROM t1 WHERE a > 2 FOR UPDATE;
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ERROR HY000: Lock wait timeout exceeded; try restarting transaction
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ROLLBACK;
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ROLLBACK;
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DROP TABLE t1;
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COMMIT;
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set default_storage_engine= @save_storage_engine;
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set optimizer_switch=default;
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