Remove .moved files
This commit is contained in:
Sergey Petrunya
parent
9ab54acbf0
commit
c635eb3319
@ -1,433 +0,0 @@
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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 (flat, BNL join)
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1 SIMPLE t3 ALL PRIMARY NULL NULL NULL 17 Using where; Using join buffer (flat, BNL join)
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1 SIMPLE t2 ALL PRIMARY,idx NULL NULL NULL 16 Using where; Using join buffer (flat, BNL join)
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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 (flat, BNL join)
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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
|
||||
SET SESSION join_cache_level=DEFAULT;
|
||||
DROP TABLE t1,t2;
|
||||
CREATE TABLE t1 (
|
||||
pk int NOT NULL PRIMARY KEY,
|
||||
j int NOT NULL,
|
||||
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;
|
||||
@ -1,24 +0,0 @@
|
||||
--disable_warnings
|
||||
drop table if exists t1,t2;
|
||||
--enable_warnings
|
||||
|
||||
#
|
||||
# SELECT that uses a virtual column and executed with BKA
|
||||
#
|
||||
|
||||
create table t1 (a int, b int);
|
||||
insert into t1 values (3, 30), (4, 20), (1, 20);
|
||||
create table t2 (c int, d int, v int as (d+1), index idx(c));
|
||||
insert into t2(c,d) values
|
||||
(20, 100), (20, 300), (30, 100), (30, 200), (40, 500),
|
||||
(70, 100), (40, 300), (60, 100), (40, 100), (70, 100);
|
||||
|
||||
set join_cache_level=6;
|
||||
explain
|
||||
select * from t1,t2 where t1.b=t2.c and d <= 100;
|
||||
|
||||
--sorted_result
|
||||
select * from t1,t2 where t1.b=t2.c and d <= 100;
|
||||
set join_cache_level=default;
|
||||
|
||||
drop table t1, t2;
|
||||
@ -1,125 +0,0 @@
|
||||
-- source include/have_maria.inc
|
||||
|
||||
--disable_warnings
|
||||
drop table if exists t1,t2,t3,t4;
|
||||
--enable_warnings
|
||||
|
||||
set @save_storage_engine= @@storage_engine;
|
||||
set storage_engine=aria;
|
||||
|
||||
--source include/mrr_tests.inc
|
||||
|
||||
set storage_engine= @save_storage_engine;
|
||||
|
||||
#
|
||||
# Bug #665049: index condition pushdown with Maria
|
||||
#
|
||||
|
||||
CREATE TABLE t1(
|
||||
pk int NOT NULL, i int NOT NULL, v varchar(1) NOT NULL,
|
||||
PRIMARY KEY (pk), INDEX idx (v, i)
|
||||
) ENGINE=ARIA;
|
||||
INSERT INTO t1 VALUES
|
||||
(1,9,'x'), (2,5,'g'), (3,1,'o'), (4,0,'g'), (5,1,'v'),
|
||||
(6,190,'m'), (7,6,'x'), (8,3,'c'), (9,4,'z'), (10,3,'i'),
|
||||
(11,186,'x'), (12,1,'g'), (13,8,'q'), (14,226,'m'), (15,133,'p');
|
||||
|
||||
CREATE TABLE t2(
|
||||
pk int NOT NULL, i int NOT NULL, v varchar(1) NOT NULL,
|
||||
PRIMARY KEY (pk), INDEX idx (v, i)
|
||||
) ENGINE=ARIA;
|
||||
INSERT INTO t2 SELECT * FROM t1;
|
||||
INSERT INTO t2 VALUES (77, 333, 'z');
|
||||
|
||||
CREATE TABLE t3(
|
||||
pk int NOT NULL, i int NOT NULL, v varchar(1) NOT NULL,
|
||||
PRIMARY KEY (pk), INDEX idx (v, i)
|
||||
) ENGINE=ARIA;
|
||||
INSERT INTO t3 SELECT * FROM t1;
|
||||
INSERT INTO t3 VALUES (88, 442, 'y'), (99, 445, 'w') ;
|
||||
|
||||
SELECT COUNT(t1.v) FROM t1, t2 IGNORE INDEX (idx), t3 IGNORE INDEX (idx)
|
||||
WHERE t3.v = t2.v AND t3.i < t2.i AND t3.pk > 0 AND t2.pk > 0;
|
||||
EXPLAIN
|
||||
SELECT COUNT(t1.v) FROM t1, t2 IGNORE INDEX (idx), t3 IGNORE INDEX (idx)
|
||||
WHERE t3.v = t2.v AND t3.i < t2.i AND t3.pk > 0 AND t2.pk > 0;
|
||||
|
||||
SELECT COUNT(t1.v) FROM t1, t2, t3
|
||||
WHERE t3.v = t2.v AND t3.i < t2.i AND t3.pk > 0 AND t2.pk > 0;
|
||||
EXPLAIN
|
||||
SELECT COUNT(t1.v) FROM t1, t2, t3
|
||||
WHERE t3.v = t2.v AND t3.i < t2.i AND t3.pk > 0 AND t2.pk > 0;
|
||||
|
||||
DROP TABLE t1,t2,t3;
|
||||
|
||||
--echo #
|
||||
--echo # Bug #669420: MRR for Range checked for each record
|
||||
--echo #
|
||||
|
||||
CREATE TABLE t1 (
|
||||
pk int NOT NULL PRIMARY KEY,
|
||||
j int NOT NULL,
|
||||
i int NOT NULL,
|
||||
v varchar(1) CHARACTER SET latin1 COLLATE latin1_bin NOT NULL,
|
||||
INDEX i (i),
|
||||
INDEX vi (v,i)
|
||||
) ENGINE=ARIA;
|
||||
INSERT INTO t1 VALUES (10,3,8,'v'),(11,3,8,'f');
|
||||
|
||||
CREATE TABLE t2 (
|
||||
pk int NOT NULL PRIMARY KEY,
|
||||
j int NOT NULL,
|
||||
i int NOT NULL,
|
||||
v varchar(1) CHARACTER SET latin1 COLLATE latin1_bin NOT NULL,
|
||||
INDEX i (i),
|
||||
INDEX vi (v,i)
|
||||
) ENGINE=ARIA;
|
||||
INSERT INTO t2 VALUES (10,9,3,'i'),(11,101,186,'x'),(12,0,1,'g');
|
||||
SET SESSION join_cache_level=0;
|
||||
|
||||
EXPLAIN
|
||||
SELECT t1.i, t2.i, t2.v, t3.pk, t3.v FROM t1, t2, t2 t3
|
||||
WHERE t2.i != 0 AND t3.pk >= t2.i AND t3.v >= t2.v;
|
||||
SELECT t1.i, t2.i, t2.v, t3.pk, t3.v FROM t1, t2, t2 t3
|
||||
WHERE t2.i != 0 AND t3.pk >= t2.i AND t3.v >= t2.v;
|
||||
SET SESSION join_cache_level=1;
|
||||
EXPLAIN
|
||||
SELECT t1.i, t2.i, t2.v, t3.pk, t3.v FROM t1, t2, t2 t3
|
||||
WHERE t2.i != 0 AND t3.pk >= t2.i AND t3.v >= t2.v;
|
||||
SELECT t1.i, t2.i, t2.v, t3.pk, t3.v FROM t1, t2, t2 t3
|
||||
WHERE t2.i != 0 AND t3.pk >= t2.i AND t3.v >= t2.v;
|
||||
|
||||
SET SESSION join_cache_level=DEFAULT;
|
||||
|
||||
DROP TABLE t1,t2;
|
||||
|
||||
CREATE TABLE t1 (
|
||||
pk int NOT NULL PRIMARY KEY,
|
||||
j int NOT NULL,
|
||||
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;
|
||||
SELECT s.i f FROM t1 t, t1 s WHERE s.i >= t.i AND s.pk < t.j;
|
||||
|
||||
EXPLAIN
|
||||
SELECT s.i f FROM t1 t, t1 s WHERE s.i >= t.i AND s.pk < t.j GROUP BY f;
|
||||
SELECT s.i f FROM t1 t, t1 s WHERE s.i >= t.i AND s.pk < t.j GROUP BY f;
|
||||
|
||||
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;
|
||||
SELECT s.i f FROM t1 t, t1 s WHERE s.i >= t.i AND s.pk < t.j GROUP BY f LIMIT 1;
|
||||
|
||||
SET SESSION join_cache_level=DEFAULT;
|
||||
|
||||
DROP TABLE t1;
|
||||
Loading…
x
Reference in New Issue
Block a user