mirror of
https://github.com/MariaDB/server.git
synced 2025-01-17 12:32:27 +01:00
merge
This commit is contained in:
Vladislav Vaintroub
commit
ae7207dad7
6 changed files with 61 additions and 2591 deletions
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@ -802,4 +802,24 @@ WHERE f12 IN (SELECT alias2.f12 FROM t1 AS alias1, t2 AS alias2, t1 WHERE alias1
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f12
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y
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DROP TABLE t1,t2,t3;
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#
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# BUG#869012: Wrong result with semijoin + materialization + AND in WHERE
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#
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CREATE TABLE t1 (f3 varchar(1) , f4 varchar(1) ) engine=InnoDB;
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INSERT IGNORE INTO t1 VALUES ('x','x'),('x','x');
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CREATE TABLE t2 ( f4 varchar(1) ) ;
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INSERT IGNORE INTO t2 VALUES ('g');
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CREATE TABLE t3 (f4 varchar(1) ) Engine=InnoDB;
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INSERT IGNORE INTO t3 VALUES ('x');
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set @tmp_869012=@@optimizer_switch;
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SET optimizer_switch='semijoin=on,materialization=on';
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SELECT *
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FROM t1 , t2
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WHERE ( t1.f4 ) IN ( SELECT f4 FROM t3 )
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AND t2.f4 != t1.f3 ;
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f3 f4 f4
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x x g
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x x g
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set optimizer_switch= @tmp_869012;
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# This must be the last in the file:
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set optimizer_switch=@subselect_sj2_tmp;
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|
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@ -813,6 +813,26 @@ WHERE f12 IN (SELECT alias2.f12 FROM t1 AS alias1, t2 AS alias2, t1 WHERE alias1
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f12
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y
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DROP TABLE t1,t2,t3;
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#
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||||
# BUG#869012: Wrong result with semijoin + materialization + AND in WHERE
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#
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CREATE TABLE t1 (f3 varchar(1) , f4 varchar(1) ) engine=InnoDB;
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||||
INSERT IGNORE INTO t1 VALUES ('x','x'),('x','x');
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CREATE TABLE t2 ( f4 varchar(1) ) ;
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INSERT IGNORE INTO t2 VALUES ('g');
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CREATE TABLE t3 (f4 varchar(1) ) Engine=InnoDB;
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INSERT IGNORE INTO t3 VALUES ('x');
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set @tmp_869012=@@optimizer_switch;
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SET optimizer_switch='semijoin=on,materialization=on';
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SELECT *
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FROM t1 , t2
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WHERE ( t1.f4 ) IN ( SELECT f4 FROM t3 )
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AND t2.f4 != t1.f3 ;
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f3 f4 f4
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x x g
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x x g
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set optimizer_switch= @tmp_869012;
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# This must be the last in the file:
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set optimizer_switch=@subselect_sj2_tmp;
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set join_cache_level=default;
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show variables like 'join_cache_level';
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|
|
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@ -1,821 +0,0 @@
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set optimizer_switch='materialization=on';
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set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
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set @subselect_sj2_tmp= @@optimizer_switch;
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set optimizer_switch='semijoin=on,firstmatch=on,loosescan=on';
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set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
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drop table if exists t0, t1, t2, t3;
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drop view if exists v1;
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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 (
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a int,
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b int
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);
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insert into t1 values (1,1),(1,1),(2,2);
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create table t2 (
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a int,
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b int,
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key(b)
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);
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insert into t2 select a, a/2 from t0;
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insert into t2 select a+10, a+10/2 from t0;
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select * from t1;
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a b
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1 1
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1 1
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2 2
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select * from t2;
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a b
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0 0
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1 1
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2 1
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3 2
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4 2
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5 3
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6 3
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7 4
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8 4
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9 5
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10 5
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11 6
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12 7
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13 8
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14 9
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15 10
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16 11
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17 12
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18 13
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19 14
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explain select * from t2 where b in (select a from t1);
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||||
id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 3
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1 PRIMARY t2 ref b b 5 test.t1.a 2
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||||
2 SUBQUERY t1 ALL NULL NULL NULL NULL 3 Using where
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select * from t2 where b in (select a from t1);
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a b
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1 1
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2 1
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3 2
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4 2
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create table t3 (
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a int,
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b int,
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key(b),
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pk1 char(200), pk2 char(200), pk3 char(200),
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primary key(pk1, pk2, pk3)
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) engine=innodb;
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insert into t3 select a,a, a,a,a from t0;
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insert into t3 select a,a, a+100,a+100,a+100 from t0;
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explain select * from t3 where b in (select a from t1);
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY t3 ALL b NULL NULL NULL 20
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1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
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2 SUBQUERY t1 ALL NULL NULL NULL NULL 3
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select * from t3 where b in (select a from t1);
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a b pk1 pk2 pk3
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1 1 1 1 1
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1 1 101 101 101
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2 2 102 102 102
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2 2 2 2 2
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set @save_max_heap_table_size= @@max_heap_table_size;
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set max_heap_table_size=16384;
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set @save_join_buffer_size = @@join_buffer_size;
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set join_buffer_size= 8000;
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drop table t3;
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create table t3 (
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a int,
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b int,
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key(b),
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pk1 char(200), pk2 char(200),
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primary key(pk1, pk2)
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) engine=innodb;
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insert into t3 select
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A.a + 10*B.a, A.a + 10*B.a, A.a + 10*B.a, A.a + 10*B.a
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from t0 A, t0 B where B.a <5;
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explain select * from t3 where b in (select a from t0);
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 10
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1 PRIMARY t3 ref b b 5 test.t0.a 1
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2 SUBQUERY t0 ALL NULL NULL NULL NULL 10 Using where
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set @save_ecp= @@engine_condition_pushdown;
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set engine_condition_pushdown=0;
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select * from t3 where b in (select A.a+B.a from t0 A, t0 B where B.a<5);
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a b pk1 pk2
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0 0 0 0
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1 1 1 1
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2 2 2 2
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3 3 3 3
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4 4 4 4
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5 5 5 5
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6 6 6 6
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7 7 7 7
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8 8 8 8
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9 9 9 9
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10 10 10 10
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11 11 11 11
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12 12 12 12
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13 13 13 13
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set engine_condition_pushdown=@save_ecp;
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set join_buffer_size= @save_join_buffer_size;
|
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set max_heap_table_size= @save_max_heap_table_size;
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explain select * from t1 where a in (select b from t2);
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY t1 ALL NULL NULL NULL NULL 3 Using where
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1 PRIMARY t2 ref b b 5 test.t1.a 2 Using index; FirstMatch(t1)
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select * from t1;
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a b
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1 1
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1 1
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2 2
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select * from t1 where a in (select b from t2);
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a b
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1 1
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1 1
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2 2
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drop table t1, t2, t3;
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set @save_join_buffer_size = @@join_buffer_size;
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set join_buffer_size= 8000;
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create table t1 (a int, filler1 binary(200), filler2 binary(200));
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insert into t1 select a, 'filler123456', 'filler123456' from t0;
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insert into t1 select a+10, 'filler123456', 'filler123456' from t0;
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create table t2 as select * from t1;
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insert into t1 select a+20, 'filler123456', 'filler123456' from t0;
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insert into t1 values (2, 'duplicate ok', 'duplicate ok');
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insert into t1 values (18, 'duplicate ok', 'duplicate ok');
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insert into t2 values (3, 'duplicate ok', 'duplicate ok');
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insert into t2 values (19, 'duplicate ok', 'duplicate ok');
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explain select
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a, mid(filler1, 1,10), length(filler1)=length(filler2) as Z
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from t1 ot where a in (select a from t2 it);
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 22
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1 PRIMARY ot ALL NULL NULL NULL NULL 32 Using where; Using join buffer (flat, BNL join)
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2 SUBQUERY it ALL NULL NULL NULL NULL 22
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select
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a, mid(filler1, 1,10), length(filler1)=length(filler2) as Z
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from t1 ot where a in (select a from t2 it);
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a mid(filler1, 1,10) Z
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0 filler1234 1
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1 filler1234 1
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2 filler1234 1
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3 filler1234 1
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4 filler1234 1
|
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5 filler1234 1
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6 filler1234 1
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7 filler1234 1
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8 filler1234 1
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9 filler1234 1
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10 filler1234 1
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11 filler1234 1
|
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12 filler1234 1
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13 filler1234 1
|
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14 filler1234 1
|
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15 filler1234 1
|
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16 filler1234 1
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17 filler1234 1
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18 filler1234 1
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19 filler1234 1
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2 duplicate 1
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18 duplicate 1
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explain select
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a, mid(filler1, 1,10), length(filler1)=length(filler2)
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from t2 ot where a in (select a from t1 it);
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY ot ALL NULL NULL NULL NULL 22
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1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
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||||
2 SUBQUERY it ALL NULL NULL NULL NULL 32
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select
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a, mid(filler1, 1,10), length(filler1)=length(filler2)
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from t2 ot where a in (select a from t1 it);
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a mid(filler1, 1,10) length(filler1)=length(filler2)
|
||||
0 filler1234 1
|
||||
1 filler1234 1
|
||||
2 filler1234 1
|
||||
3 filler1234 1
|
||||
4 filler1234 1
|
||||
5 filler1234 1
|
||||
6 filler1234 1
|
||||
7 filler1234 1
|
||||
8 filler1234 1
|
||||
9 filler1234 1
|
||||
10 filler1234 1
|
||||
11 filler1234 1
|
||||
12 filler1234 1
|
||||
13 filler1234 1
|
||||
14 filler1234 1
|
||||
15 filler1234 1
|
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16 filler1234 1
|
||||
17 filler1234 1
|
||||
18 filler1234 1
|
||||
19 filler1234 1
|
||||
3 duplicate 1
|
||||
19 duplicate 1
|
||||
insert into t1 select a+20, 'filler123456', 'filler123456' from t0;
|
||||
insert into t1 select a+20, 'filler123456', 'filler123456' from t0;
|
||||
explain select
|
||||
a, mid(filler1, 1,10), length(filler1)=length(filler2) as Z
|
||||
from t1 ot where a in (select a from t2 it);
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 22
|
||||
1 PRIMARY ot ALL NULL NULL NULL NULL 52 Using where; Using join buffer (flat, BNL join)
|
||||
2 SUBQUERY it ALL NULL NULL NULL NULL 22
|
||||
select
|
||||
a, mid(filler1, 1,10), length(filler1)=length(filler2) as Z
|
||||
from t1 ot where a in (select a from t2 it);
|
||||
a mid(filler1, 1,10) Z
|
||||
0 filler1234 1
|
||||
1 filler1234 1
|
||||
2 filler1234 1
|
||||
3 filler1234 1
|
||||
4 filler1234 1
|
||||
5 filler1234 1
|
||||
6 filler1234 1
|
||||
7 filler1234 1
|
||||
8 filler1234 1
|
||||
9 filler1234 1
|
||||
10 filler1234 1
|
||||
11 filler1234 1
|
||||
12 filler1234 1
|
||||
13 filler1234 1
|
||||
14 filler1234 1
|
||||
15 filler1234 1
|
||||
16 filler1234 1
|
||||
17 filler1234 1
|
||||
18 filler1234 1
|
||||
19 filler1234 1
|
||||
2 duplicate 1
|
||||
18 duplicate 1
|
||||
explain select
|
||||
a, mid(filler1, 1,10), length(filler1)=length(filler2)
|
||||
from t2 ot where a in (select a from t1 it);
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 PRIMARY ot ALL NULL NULL NULL NULL 22
|
||||
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
|
||||
2 SUBQUERY it ALL NULL NULL NULL NULL 52
|
||||
select
|
||||
a, mid(filler1, 1,10), length(filler1)=length(filler2)
|
||||
from t2 ot where a in (select a from t1 it);
|
||||
a mid(filler1, 1,10) length(filler1)=length(filler2)
|
||||
0 filler1234 1
|
||||
1 filler1234 1
|
||||
2 filler1234 1
|
||||
3 filler1234 1
|
||||
4 filler1234 1
|
||||
5 filler1234 1
|
||||
6 filler1234 1
|
||||
7 filler1234 1
|
||||
8 filler1234 1
|
||||
9 filler1234 1
|
||||
10 filler1234 1
|
||||
11 filler1234 1
|
||||
12 filler1234 1
|
||||
13 filler1234 1
|
||||
14 filler1234 1
|
||||
15 filler1234 1
|
||||
16 filler1234 1
|
||||
17 filler1234 1
|
||||
18 filler1234 1
|
||||
19 filler1234 1
|
||||
3 duplicate 1
|
||||
19 duplicate 1
|
||||
drop table t1, t2;
|
||||
create table t1 (a int, b int, key(a));
|
||||
create table t2 (a int, b int, key(a));
|
||||
create table t3 (a int, b int, key(a));
|
||||
insert into t1 select a,a from t0;
|
||||
insert into t2 select a,a from t0;
|
||||
insert into t3 select a,a from t0;
|
||||
t2 and t3 must be use 'ref', not 'ALL':
|
||||
explain select *
|
||||
from t0 where a in
|
||||
(select t2.a+t3.a from t1 left join (t2 join t3) on t2.a=t1.a and t3.a=t1.a);
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 PRIMARY t0 ALL NULL NULL NULL NULL 10
|
||||
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 9 func 1
|
||||
2 SUBQUERY t1 index a a 5 NULL 10 Using where; Using index
|
||||
2 SUBQUERY t2 ref a a 5 test.t1.a 1 Using index
|
||||
2 SUBQUERY t3 ref a a 5 test.t1.a 1 Using index
|
||||
drop table t0, t1,t2,t3;
|
||||
CREATE TABLE t1 (
|
||||
ID int(11) NOT NULL auto_increment,
|
||||
Name char(35) NOT NULL default '',
|
||||
Country char(3) NOT NULL default '',
|
||||
Population int(11) NOT NULL default '0',
|
||||
PRIMARY KEY (ID),
|
||||
INDEX (Population),
|
||||
INDEX (Country)
|
||||
);
|
||||
CREATE TABLE t2 (
|
||||
Code char(3) NOT NULL default '',
|
||||
Name char(52) NOT NULL default '',
|
||||
SurfaceArea float(10,2) NOT NULL default '0.00',
|
||||
Population int(11) NOT NULL default '0',
|
||||
Capital int(11) default NULL,
|
||||
PRIMARY KEY (Code),
|
||||
UNIQUE INDEX (Name),
|
||||
INDEX (Population)
|
||||
);
|
||||
CREATE TABLE t3 (
|
||||
Country char(3) NOT NULL default '',
|
||||
Language char(30) NOT NULL default '',
|
||||
Percentage float(3,1) NOT NULL default '0.0',
|
||||
PRIMARY KEY (Country, Language),
|
||||
INDEX (Percentage)
|
||||
);
|
||||
set @bug35674_save_optimizer_switch=@@optimizer_switch;
|
||||
set optimizer_switch='materialization=off';
|
||||
EXPLAIN
|
||||
SELECT Name FROM t2
|
||||
WHERE t2.Code IN (SELECT Country FROM t1 WHERE Population > 5000000)
|
||||
AND
|
||||
t2.Code IN (SELECT Country FROM t3
|
||||
WHERE Language='English' AND Percentage > 10 AND
|
||||
t2.Population > 100000);
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 PRIMARY t1 range Population,Country Population 4 NULL 1 Using index condition; Rowid-ordered scan; Start temporary
|
||||
1 PRIMARY t2 eq_ref PRIMARY,Population PRIMARY 3 test.t1.Country 1 Using where
|
||||
1 PRIMARY t3 eq_ref PRIMARY,Percentage PRIMARY 33 test.t1.Country,const 1 Using index condition; Using where; End temporary
|
||||
set optimizer_switch=@bug35674_save_optimizer_switch;
|
||||
DROP TABLE t1,t2,t3;
|
||||
CREATE TABLE t1 (
|
||||
Code char(3) NOT NULL DEFAULT '',
|
||||
Name char(52) NOT NULL DEFAULT '',
|
||||
Continent enum('Asia','Europe','North America','Africa','Oceania','Antarctica','South America') NOT NULL DEFAULT 'Asia',
|
||||
Region char(26) NOT NULL DEFAULT '',
|
||||
SurfaceArea float(10,2) NOT NULL DEFAULT '0.00',
|
||||
IndepYear smallint(6) DEFAULT NULL,
|
||||
Population int(11) NOT NULL DEFAULT '0',
|
||||
LifeExpectancy float(3,1) DEFAULT NULL,
|
||||
GNP float(10,2) DEFAULT NULL,
|
||||
GNPOld float(10,2) DEFAULT NULL,
|
||||
LocalName char(45) NOT NULL DEFAULT '',
|
||||
GovernmentForm char(45) NOT NULL DEFAULT '',
|
||||
HeadOfState char(60) DEFAULT NULL,
|
||||
Capital int(11) DEFAULT NULL,
|
||||
Code2 char(2) NOT NULL DEFAULT '',
|
||||
PRIMARY KEY (Code)
|
||||
);
|
||||
CREATE TABLE t2 (
|
||||
ID int(11) NOT NULL AUTO_INCREMENT,
|
||||
Name char(35) NOT NULL DEFAULT '',
|
||||
CountryCode char(3) NOT NULL DEFAULT '',
|
||||
District char(20) NOT NULL DEFAULT '',
|
||||
Population int(11) NOT NULL DEFAULT '0',
|
||||
PRIMARY KEY (ID),
|
||||
KEY CountryCode (CountryCode)
|
||||
);
|
||||
Fill the table with test data
|
||||
This must not use LooseScan:
|
||||
EXPLAIN SELECT Name FROM t1
|
||||
WHERE t1.Code IN (
|
||||
SELECT t2.CountryCode FROM t2 WHERE Population > 5000000);
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 PRIMARY t1 ALL PRIMARY NULL NULL NULL 31
|
||||
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 3 func 1
|
||||
2 SUBQUERY t2 ALL CountryCode NULL NULL NULL 545 Using where
|
||||
SELECT Name FROM t1
|
||||
WHERE t1.Code IN (
|
||||
SELECT t2.CountryCode FROM t2 WHERE Population > 5000000);
|
||||
Name
|
||||
Austria
|
||||
Canada
|
||||
China
|
||||
Czech Republic
|
||||
drop table t1, t2;
|
||||
drop procedure if exists p1;
|
||||
drop procedure if exists p2;
|
||||
drop procedure if exists p3;
|
||||
drop procedure if exists p4;
|
||||
CREATE TABLE t1(a INT);
|
||||
CREATE TABLE t2(c INT);
|
||||
CREATE PROCEDURE p1(v1 int)
|
||||
BEGIN
|
||||
SELECT 1 FROM t1 WHERE a = v1 AND a IN (SELECT c FROM t2);
|
||||
END
|
||||
//
|
||||
CREATE PROCEDURE p2(v1 int)
|
||||
BEGIN
|
||||
SELECT 1 FROM t1 WHERE a IN (SELECT c FROM t2);
|
||||
END
|
||||
//
|
||||
CREATE PROCEDURE p3(v1 int)
|
||||
BEGIN
|
||||
SELECT 1
|
||||
FROM
|
||||
t1 t01,t1 t02,t1 t03,t1 t04,t1 t05,t1 t06,t1 t07,t1 t08,
|
||||
t1 t09,t1 t10,t1 t11,t1 t12,t1 t13,t1 t14,t1 t15,t1 t16,
|
||||
t1 t17,t1 t18,t1 t19,t1 t20,t1 t21,t1 t22,t1 t23,t1 t24,
|
||||
t1 t25,t1 t26,t1 t27,t1 t28,t1 t29,t1 t30,t1 t31,t1 t32,
|
||||
t1 t33,t1 t34,t1 t35,t1 t36,t1 t37,t1 t38,t1 t39,t1 t40,
|
||||
t1 t41,t1 t42,t1 t43,t1 t44,t1 t45,t1 t46,t1 t47,t1 t48,
|
||||
t1 t49,t1 t50,t1 t51,t1 t52,t1 t53,t1 t54,t1 t55,t1 t56,
|
||||
t1 t57,t1 t58,t1 t59,t1 t60
|
||||
WHERE t01.a IN (SELECT c FROM t2);
|
||||
END
|
||||
//
|
||||
CREATE PROCEDURE p4(v1 int)
|
||||
BEGIN
|
||||
SELECT 1
|
||||
FROM
|
||||
t1 t01,t1 t02,t1 t03,t1 t04,t1 t05,t1 t06,t1 t07,t1 t08,
|
||||
t1 t09,t1 t10,t1 t11,t1 t12,t1 t13,t1 t14,t1 t15,t1 t16,
|
||||
t1 t17,t1 t18,t1 t19,t1 t20,t1 t21,t1 t22,t1 t23,t1 t24,
|
||||
t1 t25,t1 t26,t1 t27,t1 t28,t1 t29,t1 t30,t1 t31,t1 t32,
|
||||
t1 t33,t1 t34,t1 t35,t1 t36,t1 t37,t1 t38,t1 t39,t1 t40,
|
||||
t1 t41,t1 t42,t1 t43,t1 t44,t1 t45,t1 t46,t1 t47,t1 t48,
|
||||
t1 t49,t1 t50,t1 t51,t1 t52,t1 t53,t1 t54,t1 t55,t1 t56,
|
||||
t1 t57,t1 t58,t1 t59,t1 t60
|
||||
WHERE t01.a = v1 AND t01.a IN (SELECT c FROM t2);
|
||||
END
|
||||
//
|
||||
CALL p1(1);
|
||||
1
|
||||
CALL p2(1);
|
||||
1
|
||||
CALL p3(1);
|
||||
1
|
||||
CALL p4(1);
|
||||
1
|
||||
DROP TABLE t1, t2;
|
||||
DROP PROCEDURE p1;
|
||||
DROP PROCEDURE p2;
|
||||
DROP PROCEDURE p3;
|
||||
DROP PROCEDURE p4;
|
||||
create table t0 (a int);
|
||||
insert into t0 values (0),(1),(2),(3),(4);
|
||||
create table t1 (a int, b int, key(a));
|
||||
insert into t1 select a,a from t0;
|
||||
insert into t1 select a+5,a from t0;
|
||||
create table t2 (a int, b int, primary key(a));
|
||||
insert into t2 select * from t1;
|
||||
Table t2, unlike table t1, should be displayed as pulled out
|
||||
explain extended select * from t0
|
||||
where t0.a in ( select t1.a from t1,t2 where t2.a=t0.a and
|
||||
t1.b=t2.b);
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 PRIMARY t0 ALL NULL NULL NULL NULL 5 100.00 Using where
|
||||
1 PRIMARY t2 eq_ref PRIMARY PRIMARY 4 test.t0.a 1 100.00
|
||||
1 PRIMARY t1 ref a a 5 test.t0.a 1 100.00 Using where; FirstMatch(t2)
|
||||
Warnings:
|
||||
Note 1276 Field or reference 'test.t0.a' of SELECT #2 was resolved in SELECT #1
|
||||
Note 1003 select `test`.`t0`.`a` AS `a` from `test`.`t2` semi join (`test`.`t1`) join `test`.`t0` where ((`test`.`t1`.`b` = `test`.`t2`.`b`) and (`test`.`t2`.`a` = `test`.`t0`.`a`) and (`test`.`t1`.`a` = `test`.`t0`.`a`))
|
||||
update t1 set a=3, b=11 where a=4;
|
||||
update t2 set b=11 where a=3;
|
||||
select * from t0 where t0.a in
|
||||
(select t1.a from t1, t2 where t2.a=t0.a and t1.b=t2.b);
|
||||
a
|
||||
0
|
||||
1
|
||||
2
|
||||
3
|
||||
drop table t0, t1, t2;
|
||||
CREATE TABLE t1 (
|
||||
id int(11) NOT NULL,
|
||||
PRIMARY KEY (id));
|
||||
CREATE TABLE t2 (
|
||||
id int(11) NOT NULL,
|
||||
fid int(11) NOT NULL,
|
||||
PRIMARY KEY (id));
|
||||
insert into t1 values(1);
|
||||
insert into t2 values(1,7503),(2,1);
|
||||
explain select count(*)
|
||||
from t1
|
||||
where fid IN (select fid from t2 where (id between 7502 and 8420) order by fid );
|
||||
ERROR 42S22: Unknown column 'fid' in 'IN/ALL/ANY subquery'
|
||||
drop table t1, t2;
|
||||
create table t1 (a int, b int, key (a), key (b));
|
||||
insert into t1 values (2,4),(2,4),(2,4);
|
||||
select t1.a from t1
|
||||
where
|
||||
t1.a in (select 1 from t1 where t1.a in (select 1 from t1) group by t1.a);
|
||||
a
|
||||
drop table t1;
|
||||
create table t1(a int,b int,key(a),key(b));
|
||||
insert into t1 values (1,1),(2,2),(3,3);
|
||||
select 1 from t1
|
||||
where t1.a not in (select 1 from t1
|
||||
where t1.a in (select 1 from t1)
|
||||
group by t1.b);
|
||||
1
|
||||
1
|
||||
1
|
||||
drop table t1;
|
||||
CREATE TABLE t1
|
||||
(EMPNUM CHAR(3) NOT NULL,
|
||||
EMPNAME CHAR(20),
|
||||
GRADE DECIMAL(4),
|
||||
CITY CHAR(15));
|
||||
CREATE TABLE t2
|
||||
(PNUM CHAR(3) NOT NULL,
|
||||
PNAME CHAR(20),
|
||||
PTYPE CHAR(6),
|
||||
BUDGET DECIMAL(9),
|
||||
CITY CHAR(15));
|
||||
CREATE TABLE t3
|
||||
(EMPNUM CHAR(3) NOT NULL,
|
||||
PNUM CHAR(3) NOT NULL,
|
||||
HOURS DECIMAL(5));
|
||||
INSERT INTO t1 VALUES ('E1','Alice',12,'Deale');
|
||||
INSERT INTO t1 VALUES ('E2','Betty',10,'Vienna');
|
||||
INSERT INTO t1 VALUES ('E3','Carmen',13,'Vienna');
|
||||
INSERT INTO t1 VALUES ('E4','Don',12,'Deale');
|
||||
INSERT INTO t1 VALUES ('E5','Ed',13,'Akron');
|
||||
INSERT INTO t2 VALUES ('P1','MXSS','Design',10000,'Deale');
|
||||
INSERT INTO t2 VALUES ('P2','CALM','Code',30000,'Vienna');
|
||||
INSERT INTO t2 VALUES ('P3','SDP','Test',30000,'Tampa');
|
||||
INSERT INTO t2 VALUES ('P4','SDP','Design',20000,'Deale');
|
||||
INSERT INTO t2 VALUES ('P5','IRM','Test',10000,'Vienna');
|
||||
INSERT INTO t2 VALUES ('P6','PAYR','Design',50000,'Deale');
|
||||
INSERT INTO t3 VALUES ('E1','P1',40);
|
||||
INSERT INTO t3 VALUES ('E1','P2',20);
|
||||
INSERT INTO t3 VALUES ('E1','P3',80);
|
||||
INSERT INTO t3 VALUES ('E1','P4',20);
|
||||
INSERT INTO t3 VALUES ('E1','P5',12);
|
||||
INSERT INTO t3 VALUES ('E1','P6',12);
|
||||
INSERT INTO t3 VALUES ('E2','P1',40);
|
||||
INSERT INTO t3 VALUES ('E2','P2',80);
|
||||
INSERT INTO t3 VALUES ('E3','P2',20);
|
||||
INSERT INTO t3 VALUES ('E4','P2',20);
|
||||
INSERT INTO t3 VALUES ('E4','P4',40);
|
||||
INSERT INTO t3 VALUES ('E4','P5',80);
|
||||
SELECT * FROM t1;
|
||||
EMPNUM EMPNAME GRADE CITY
|
||||
E1 Alice 12 Deale
|
||||
E2 Betty 10 Vienna
|
||||
E3 Carmen 13 Vienna
|
||||
E4 Don 12 Deale
|
||||
E5 Ed 13 Akron
|
||||
CREATE UNIQUE INDEX t1_IDX ON t1(EMPNUM);
|
||||
SELECT EMPNAME
|
||||
FROM t1
|
||||
WHERE EMPNUM IN
|
||||
(SELECT EMPNUM
|
||||
FROM t3
|
||||
WHERE PNUM IN
|
||||
(SELECT PNUM
|
||||
FROM t2
|
||||
WHERE PTYPE = 'Design'));
|
||||
EMPNAME
|
||||
Alice
|
||||
Betty
|
||||
Don
|
||||
DROP INDEX t1_IDX ON t1;
|
||||
CREATE INDEX t1_IDX ON t1(EMPNUM);
|
||||
SELECT EMPNAME
|
||||
FROM t1
|
||||
WHERE EMPNUM IN
|
||||
(SELECT EMPNUM
|
||||
FROM t3
|
||||
WHERE PNUM IN
|
||||
(SELECT PNUM
|
||||
FROM t2
|
||||
WHERE PTYPE = 'Design'));
|
||||
EMPNAME
|
||||
Alice
|
||||
Betty
|
||||
Don
|
||||
DROP INDEX t1_IDX ON t1;
|
||||
SELECT EMPNAME
|
||||
FROM t1
|
||||
WHERE EMPNUM IN
|
||||
(SELECT EMPNUM
|
||||
FROM t3
|
||||
WHERE PNUM IN
|
||||
(SELECT PNUM
|
||||
FROM t2
|
||||
WHERE PTYPE = 'Design'));
|
||||
EMPNAME
|
||||
Alice
|
||||
Betty
|
||||
Don
|
||||
DROP TABLE t1, t2, t3;
|
||||
CREATE TABLE t1 (f1 INT NOT NULL);
|
||||
CREATE VIEW v1 (a) AS SELECT f1 IN (SELECT f1 FROM t1) FROM t1;
|
||||
SELECT * FROM v1;
|
||||
a
|
||||
drop view v1;
|
||||
drop table t1;
|
||||
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);
|
||||
insert into t1 values (0,0),(1,1),(2,2);
|
||||
create table t2 as select * from t1;
|
||||
create table t3 (pk int, a int, primary key(pk));
|
||||
insert into t3 select a,a from t0;
|
||||
explain
|
||||
select * from t1 left join t2 on (t2.a= t1.a and t2.a in (select pk from t3));
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 PRIMARY t1 ALL NULL NULL NULL NULL 3
|
||||
1 PRIMARY t2 ALL NULL NULL NULL NULL 3 Using where
|
||||
2 SUBQUERY t3 index PRIMARY PRIMARY 4 NULL 10 Using index
|
||||
drop table t0, t1, t2, t3;
|
||||
create table t1 (a int);
|
||||
insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
|
||||
create table t2 (a char(200), b char(200), c char(200), primary key (a,b,c)) engine=innodb;
|
||||
insert into t2 select concat(a, repeat('X',198)),repeat('B',200),repeat('B',200) from t1;
|
||||
insert into t2 select concat(a, repeat('Y',198)),repeat('B',200),repeat('B',200) from t1;
|
||||
alter table t2 add filler1 int;
|
||||
insert into t1 select A.a + 10*(B.a + 10*C.a) from t1 A, t1 B, t1 C;
|
||||
set @save_join_buffer_size=@@join_buffer_size;
|
||||
set join_buffer_size=1;
|
||||
select * from t2 where filler1 in ( select a from t1);
|
||||
a b c filler1
|
||||
set join_buffer_size=default;
|
||||
drop table t1, t2;
|
||||
create table t1 (a int not null);
|
||||
drop procedure if exists p1;
|
||||
CREATE PROCEDURE p1()
|
||||
BEGIN
|
||||
DECLARE EXIT HANDLER FOR SQLEXCEPTION select a from t1;
|
||||
prepare s1 from '
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in (
|
||||
select a from t1 where a in ( select a from t1)
|
||||
)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))';
|
||||
execute s1;
|
||||
END;
|
||||
|
|
||||
call p1();
|
||||
a
|
||||
drop procedure p1;
|
||||
drop table t1;
|
||||
create table t0 (a int);
|
||||
insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
|
||||
create table t1 (a int) as select A.a + 10 *(B.a + 10*C.a) as a from t0 A, t0 B, t0 C;
|
||||
create table t2 (id int, a int, primary key(id), key(a)) as select a as id, a as a from t1;
|
||||
show create table t2;
|
||||
Table Create Table
|
||||
t2 CREATE TABLE `t2` (
|
||||
`id` int(11) NOT NULL DEFAULT '0',
|
||||
`a` int(11) DEFAULT NULL,
|
||||
PRIMARY KEY (`id`),
|
||||
KEY `a` (`a`)
|
||||
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
||||
set @a=0;
|
||||
create table t3 as select * from t2 limit 0;
|
||||
insert into t3 select @a:=@a+1, t2.a from t2, t0;
|
||||
insert into t3 select @a:=@a+1, t2.a from t2, t0;
|
||||
insert into t3 select @a:=@a+1, t2.a from t2, t0;
|
||||
alter table t3 add primary key(id), add key(a);
|
||||
The following must use loose index scan over t3, key a:
|
||||
explain select count(a) from t2 where a in ( SELECT a FROM t3);
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 PRIMARY t2 index a a 5 NULL 1000 Using index
|
||||
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
|
||||
2 SUBQUERY t3 index a a 5 NULL 30000 Using index
|
||||
select count(a) from t2 where a in ( SELECT a FROM t3);
|
||||
count(a)
|
||||
1000
|
||||
drop table t0,t1,t2,t3;
|
||||
|
||||
BUG#42740: crash in optimize_semijoin_nests
|
||||
|
||||
create table t1 (c6 timestamp,key (c6)) engine=innodb;
|
||||
create table t2 (c2 double) engine=innodb;
|
||||
explain select 1 from t2 where c2 = any (select log10(null) from t1 where c6 <null) ;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
|
||||
drop table t1, t2;
|
||||
#
|
||||
# BUG#42742: crash in setup_sj_materialization, Copy_field::set
|
||||
#
|
||||
create table t3 ( c1 year) engine=innodb;
|
||||
insert into t3 values (2135),(2142);
|
||||
create table t2 (c1 tinytext,c2 text,c6 timestamp) engine=innodb;
|
||||
# The following must not crash, EXPLAIN should show one SJ strategy, not a mix:
|
||||
explain select 1 from t2 where
|
||||
c2 in (select 1 from t3, t2) and
|
||||
c1 in (select convert(c6,char(1)) from t2);
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 PRIMARY t2 ALL NULL NULL NULL NULL 1 Using where
|
||||
1 PRIMARY t2 ALL NULL NULL NULL NULL 1
|
||||
1 PRIMARY t2 ALL NULL NULL NULL NULL 1 Using where
|
||||
1 PRIMARY t3 ALL NULL NULL NULL NULL 2 FirstMatch(t2)
|
||||
drop table t2, t3;
|
||||
#
|
||||
# BUG#761598: InnoDB: Error: row_search_for_mysql() is called without ha_innobase::external_lock() in maria-5.3
|
||||
#
|
||||
CREATE TABLE t1 ( f1 int NOT NULL , f10 int) ;
|
||||
INSERT IGNORE INTO t1 VALUES (25,0),(29,0);
|
||||
CREATE TABLE t2 ( f10 int) ENGINE=InnoDB;
|
||||
CREATE TABLE t3 ( f11 int) ;
|
||||
INSERT IGNORE INTO t3 VALUES (0);
|
||||
SELECT alias1.f10 AS field2
|
||||
FROM t2 AS alias1
|
||||
JOIN (
|
||||
t3 AS alias2
|
||||
JOIN t1 AS alias3
|
||||
ON alias3.f10
|
||||
) ON alias3.f1
|
||||
WHERE alias2.f11 IN (
|
||||
SELECT SQ4_alias1.f10
|
||||
FROM t1 AS SQ4_alias1
|
||||
LEFT JOIN t2 AS SQ4_alias3 ON SQ4_alias3.f10
|
||||
)
|
||||
GROUP BY field2;
|
||||
field2
|
||||
drop table t1, t2, t3;
|
||||
#
|
||||
# BUG#849763: Wrong result with second execution of prepared statement with semijoin + view
|
||||
#
|
||||
CREATE TABLE t1 ( c varchar(1)) engine=innodb;
|
||||
INSERT INTO t1 VALUES ('r');
|
||||
CREATE TABLE t2 ( a integer, b varchar(1), c varchar(1)) engine=innodb;
|
||||
INSERT INTO t2 VALUES (1,'r','r');
|
||||
CREATE OR REPLACE VIEW v1 AS SELECT * FROM t1;
|
||||
PREPARE st1 FROM 'SELECT * FROM t2 WHERE a = SOME (SELECT a FROM v1 WHERE v1.c = t2.c)';
|
||||
EXECUTE st1;
|
||||
a b c
|
||||
1 r r
|
||||
EXECUTE st1;
|
||||
a b c
|
||||
1 r r
|
||||
DROP VIEW v1;
|
||||
DROP TABLE t1, t2;
|
||||
#
|
||||
# BUG#858732: Wrong result with semijoin + loosescan + comma join
|
||||
#
|
||||
CREATE TABLE t1 (f13 int(11) NOT NULL , PRIMARY KEY (f13)) ENGINE=InnoDB;
|
||||
INSERT INTO t1 VALUES (16),(24);
|
||||
CREATE TABLE t2 (f14 int(11) NOT NULL, f12 varchar(1) NOT NULL, KEY (f12,f14)) ENGINE=InnoDB;
|
||||
INSERT INTO t2 VALUES (6,'y');
|
||||
CREATE TABLE t3 (f12 varchar(1) NOT NULL) ENGINE=InnoDB;
|
||||
INSERT INTO t3 VALUES ('r'),('s'),('t'),('v'),('w'),('x'),('y');
|
||||
# The following must use LooseScan but not join buffering
|
||||
explain
|
||||
SELECT * FROM t3
|
||||
WHERE f12 IN (SELECT alias2.f12 FROM t1 AS alias1, t2 AS alias2, t1 WHERE alias1.f13 = 24);
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 PRIMARY alias1 const PRIMARY PRIMARY 4 const 1 Using index
|
||||
1 PRIMARY alias2 index f12 f12 7 NULL 1 Using index; LooseScan
|
||||
1 PRIMARY t1 index NULL PRIMARY 4 NULL 2 Using index; FirstMatch(alias2)
|
||||
1 PRIMARY t3 ALL NULL NULL NULL NULL 7 Using where; Using join buffer (flat, BNL join)
|
||||
SELECT * FROM t3
|
||||
WHERE f12 IN (SELECT alias2.f12 FROM t1 AS alias1, t2 AS alias2, t1 WHERE alias1.f13 = 24);
|
||||
f12
|
||||
y
|
||||
DROP TABLE t1,t2,t3;
|
||||
set optimizer_switch=@subselect_sj2_tmp;
|
||||
set optimizer_switch=default;
|
||||
select @@optimizer_switch like '%materialization=on%';
|
||||
@@optimizer_switch like '%materialization=on%'
|
||||
0
|
||||
File diff suppressed because it is too large
Load diff
|
|
@ -988,5 +988,25 @@ WHERE f12 IN (SELECT alias2.f12 FROM t1 AS alias1, t2 AS alias2, t1 WHERE alias1
|
|||
|
||||
DROP TABLE t1,t2,t3;
|
||||
|
||||
--echo #
|
||||
--echo # BUG#869012: Wrong result with semijoin + materialization + AND in WHERE
|
||||
--echo #
|
||||
CREATE TABLE t1 (f3 varchar(1) , f4 varchar(1) ) engine=InnoDB;
|
||||
INSERT IGNORE INTO t1 VALUES ('x','x'),('x','x');
|
||||
CREATE TABLE t2 ( f4 varchar(1) ) ;
|
||||
INSERT IGNORE INTO t2 VALUES ('g');
|
||||
CREATE TABLE t3 (f4 varchar(1) ) Engine=InnoDB;
|
||||
INSERT IGNORE INTO t3 VALUES ('x');
|
||||
|
||||
set @tmp_869012=@@optimizer_switch;
|
||||
SET optimizer_switch='semijoin=on,materialization=on';
|
||||
SELECT *
|
||||
FROM t1 , t2
|
||||
WHERE ( t1.f4 ) IN ( SELECT f4 FROM t3 )
|
||||
AND t2.f4 != t1.f3 ;
|
||||
set optimizer_switch= @tmp_869012;
|
||||
|
||||
|
||||
|
||||
--echo # This must be the last in the file:
|
||||
set optimizer_switch=@subselect_sj2_tmp;
|
||||
|
|
|
|||
|
|
@ -7969,7 +7969,7 @@ make_join_select(JOIN *join,SQL_SELECT *select,COND *cond)
|
|||
*/
|
||||
JOIN_TAB *first_inner_tab= tab->first_inner;
|
||||
|
||||
if (tab->table)
|
||||
if (!tab->bush_children)
|
||||
current_map= tab->table->map;
|
||||
else
|
||||
current_map= tab->bush_children->start->emb_sj_nest->sj_inner_tables;
|
||||
|
|
|
|||
Loading…
Reference in a new issue