mirror of
https://github.com/MariaDB/server.git
synced 2025-01-18 21:12:26 +01:00
432c9b20e9
This bug in the MRR code for Maria engine caused wrong results when MRR was used to scan ranges for each record. Added test cases for bugs 669420 and 669423 (as a duplicate of 669420).
444 lines
13 KiB
Text
444 lines
13 KiB
Text
drop table if exists t1,t2,t3,t4;
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set @save_storage_engine= @@storage_engine;
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set storage_engine=aria;
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create table t1(a int);
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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=Aria DEFAULT CHARSET=latin1 PAGE_CHECKSUM=1
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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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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-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-1011=w filler-1
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c-1012=w filler-1
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c-1013=w filler-1
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c-1014=w filler-1
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c-1015=w filler-1
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c-1011=w filler-2
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c-1012=w filler-2
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c-1013=w filler-2
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c-1014=w filler-2
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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-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-1011=w filler-1
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c-1012=w filler-1
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c-1013=w filler-1
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c-1014=w filler-1
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c-1015=w filler-1
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c-1011=w filler-2
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c-1012=w filler-2
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c-1013=w filler-2
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c-1014=w filler-2
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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-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-1011=w filler-1
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c-1012=w filler-1
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c-1013=w filler-1
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c-1014=w filler-1
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c-1015=w filler-1
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c-1011=w filler-2
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c-1012=w filler-2
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c-1013=w filler-2
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c-1014=w filler-2
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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-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-1011=w filler-1
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c-1012=w filler-1
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c-1013=w filler-1
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c-1014=w filler-1
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c-1015=w filler-1
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c-1011=w filler-2
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c-1012=w filler-2
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c-1013=w filler-2
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c-1014=w filler-2
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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-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-1011=w filler-1
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c-1012=w filler-1
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c-1013=w filler-1
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c-1014=w filler-1
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c-1015=w filler-1
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c-1011=w filler-2
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c-1012=w filler-2
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c-1013=w filler-2
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c-1014=w filler-2
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c-1015=w filler-2
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c-1013=w inserted
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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));
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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 type possible_keys key key_len ref rows Extra
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1 SIMPLE t4 range idx1 idx1 29 NULL 16 Using index condition; Using MRR
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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 type possible_keys key key_len ref rows Extra
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1 SIMPLE t4 range idx1 idx1 29 NULL 32 Using index condition; Using MRR
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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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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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set storage_engine= @save_storage_engine;
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CREATE TABLE t1(
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pk int NOT NULL, i int NOT NULL, v varchar(1) NOT NULL,
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PRIMARY KEY (pk), INDEX idx (v, i)
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) ENGINE=ARIA;
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INSERT INTO t1 VALUES
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(1,9,'x'), (2,5,'g'), (3,1,'o'), (4,0,'g'), (5,1,'v'),
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(6,190,'m'), (7,6,'x'), (8,3,'c'), (9,4,'z'), (10,3,'i'),
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(11,186,'x'), (12,1,'g'), (13,8,'q'), (14,226,'m'), (15,133,'p');
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CREATE TABLE t2(
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pk int NOT NULL, i int NOT NULL, v varchar(1) NOT NULL,
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PRIMARY KEY (pk), INDEX idx (v, i)
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) ENGINE=ARIA;
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INSERT INTO t2 SELECT * FROM t1;
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INSERT INTO t2 VALUES (77, 333, 'z');
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CREATE TABLE t3(
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pk int NOT NULL, i int NOT NULL, v varchar(1) NOT NULL,
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PRIMARY KEY (pk), INDEX idx (v, i)
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) ENGINE=ARIA;
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INSERT INTO t3 SELECT * FROM t1;
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INSERT INTO t3 VALUES (88, 442, 'y'), (99, 445, 'w') ;
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SELECT COUNT(t1.v) FROM t1, t2 IGNORE INDEX (idx), t3 IGNORE INDEX (idx)
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WHERE t3.v = t2.v AND t3.i < t2.i AND t3.pk > 0 AND t2.pk > 0;
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COUNT(t1.v)
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120
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EXPLAIN
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SELECT COUNT(t1.v) FROM t1, t2 IGNORE INDEX (idx), t3 IGNORE INDEX (idx)
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WHERE t3.v = t2.v AND t3.i < t2.i AND t3.pk > 0 AND t2.pk > 0;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 index NULL idx 7 NULL 15 Using index
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1 SIMPLE t2 ALL PRIMARY NULL NULL NULL 16 Using where; Using join buffer
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1 SIMPLE t3 ALL PRIMARY NULL NULL NULL 17 Using where; Using join buffer
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SELECT COUNT(t1.v) FROM t1, t2, t3
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WHERE t3.v = t2.v AND t3.i < t2.i AND t3.pk > 0 AND t2.pk > 0;
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COUNT(t1.v)
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120
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EXPLAIN
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SELECT COUNT(t1.v) FROM t1, t2, t3
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WHERE t3.v = t2.v AND t3.i < t2.i AND t3.pk > 0 AND t2.pk > 0;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 index NULL idx 7 NULL 15 Using index
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1 SIMPLE t2 ALL PRIMARY,idx NULL NULL NULL 16 Using where; Using join buffer
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1 SIMPLE t3 ref PRIMARY,idx idx 3 test.t2.v 2 Using index condition; Using where
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DROP TABLE t1,t2,t3;
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#
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# Bug #669420: MRR for Range checked for each record
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#
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CREATE TABLE t1 (
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pk int NOT NULL PRIMARY KEY,
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j int NOT NULL,
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i int NOT NULL,
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v varchar(1) CHARACTER SET latin1 COLLATE latin1_bin NOT NULL,
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INDEX i (i),
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INDEX vi (v,i)
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) ENGINE=ARIA;
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INSERT INTO t1 VALUES (10,3,8,'v'),(11,3,8,'f');
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CREATE TABLE t2 (
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pk int NOT NULL PRIMARY KEY,
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j int NOT NULL,
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i int NOT NULL,
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v varchar(1) CHARACTER SET latin1 COLLATE latin1_bin NOT NULL,
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INDEX i (i),
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INDEX vi (v,i)
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) ENGINE=ARIA;
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INSERT INTO t2 VALUES (10,9,3,'i'),(11,101,186,'x'),(12,0,1,'g');
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SET SESSION join_cache_level=0;
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EXPLAIN
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SELECT t1.i, t2.i, t2.v, t3.pk, t3.v FROM t1, t2, t2 t3
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WHERE t2.i != 0 AND t3.pk >= t2.i AND t3.v >= t2.v;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 index NULL i 4 NULL 2 Using index
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1 SIMPLE t2 index i,vi vi 7 NULL 3 Using where; Using index
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1 SIMPLE t3 ALL PRIMARY,vi NULL NULL NULL 3 Range checked for each record (index map: 0x5)
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SELECT t1.i, t2.i, t2.v, t3.pk, t3.v FROM t1, t2, t2 t3
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WHERE t2.i != 0 AND t3.pk >= t2.i AND t3.v >= t2.v;
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i i v pk v
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8 1 g 10 i
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8 1 g 11 x
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8 1 g 12 g
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8 3 i 10 i
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8 3 i 11 x
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8 1 g 10 i
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8 1 g 11 x
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8 1 g 12 g
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8 3 i 10 i
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8 3 i 11 x
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SET SESSION join_cache_level=1;
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EXPLAIN
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SELECT t1.i, t2.i, t2.v, t3.pk, t3.v FROM t1, t2, t2 t3
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WHERE t2.i != 0 AND t3.pk >= t2.i AND t3.v >= t2.v;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 index NULL i 4 NULL 2 Using index
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1 SIMPLE t2 index i,vi vi 7 NULL 3 Using where; Using index; Using join buffer
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1 SIMPLE t3 ALL PRIMARY,vi NULL NULL NULL 3 Range checked for each record (index map: 0x5)
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SELECT t1.i, t2.i, t2.v, t3.pk, t3.v FROM t1, t2, t2 t3
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WHERE t2.i != 0 AND t3.pk >= t2.i AND t3.v >= t2.v;
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i i v pk v
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8 3 i 10 i
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8 3 i 11 x
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8 3 i 10 i
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8 3 i 11 x
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8 1 g 10 i
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8 1 g 11 x
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8 1 g 12 g
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8 1 g 10 i
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8 1 g 11 x
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8 1 g 12 g
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SET SESSION join_cache_level=DEFAULT;
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DROP TABLE t1,t2;
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CREATE TABLE t1 (
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pk int NOT NULL PRIMARY KEY,
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j int NOT NULL,
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i int NOT NULL,
|
|
v varchar(1) CHARACTER SET latin1 COLLATE latin1_bin NOT NULL,
|
|
INDEX i (i)
|
|
) ENGINE=ARIA;
|
|
INSERT INTO t1 VALUES
|
|
(10,3,8,'v'),(11,3,8,'f'),(12,3,5,'v'),(13,2,8,'s'),(14,1,8,'a'),
|
|
(15,0,6,'p'),(16,8,7,'z'),(17,5,2,'a'),(18,9,5,'h'),(19,5,7,'h'),
|
|
(20,4,2,'v'),(21,2,9,'v'),(22,33,142,'b'),(23,5,3,'y'),(24,1,0,'v'),
|
|
(25,9,3,'m'),(26,1,5,'z'),(27,3,9,'n'),(28,8,1,'d'),(29,231,107,'a');
|
|
SET SESSION join_cache_level = 0;
|
|
EXPLAIN
|
|
SELECT s.i f FROM t1 t, t1 s WHERE s.i >= t.i AND s.pk < t.j;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 SIMPLE t ALL i NULL NULL NULL 20
|
|
1 SIMPLE s ALL PRIMARY,i NULL NULL NULL 20 Range checked for each record (index map: 0x3)
|
|
SELECT s.i f FROM t1 t, t1 s WHERE s.i >= t.i AND s.pk < t.j;
|
|
f
|
|
142
|
|
142
|
|
107
|
|
EXPLAIN
|
|
SELECT s.i f FROM t1 t, t1 s WHERE s.i >= t.i AND s.pk < t.j GROUP BY f;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 SIMPLE t ALL i NULL NULL NULL 20 Using temporary; Using filesort
|
|
1 SIMPLE s ALL PRIMARY,i NULL NULL NULL 20 Range checked for each record (index map: 0x3)
|
|
SELECT s.i f FROM t1 t, t1 s WHERE s.i >= t.i AND s.pk < t.j GROUP BY f;
|
|
f
|
|
107
|
|
142
|
|
EXPLAIN
|
|
SELECT s.i f FROM t1 t, t1 s WHERE s.i >= t.i AND s.pk < t.j GROUP BY f LIMIT 1;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 SIMPLE s ALL PRIMARY,i NULL NULL NULL 20 Using temporary; Using filesort
|
|
1 SIMPLE t ALL i NULL NULL NULL 20 Using where
|
|
SELECT s.i f FROM t1 t, t1 s WHERE s.i >= t.i AND s.pk < t.j GROUP BY f LIMIT 1;
|
|
f
|
|
107
|
|
SET SESSION join_cache_level=DEFAULT;
|
|
DROP TABLE t1;
|