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1103 lines
49 KiB
Plaintext
1103 lines
49 KiB
Plaintext
drop table if exists t1,t2,t3;
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set optimizer_switch='exists_to_in=on';
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#
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# LP BUG#884644 exists2in broke name resolution
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#
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CREATE TABLE t1 (f1 integer);
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SELECT * FROM t1 WHERE EXISTS (SELECT NO_SUCH_TABLE.NO_SUCH_FIELD FROM t1);
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ERROR 42S22: Unknown column 'NO_SUCH_TABLE.NO_SUCH_FIELD' in 'field list'
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drop table t1;
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#
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# LP BUG#884657 Wrong result with exists2in , correlated subquery
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#
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CREATE TABLE t1 ( a varchar(1)) ;
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INSERT INTO t1 VALUES ('c'),('b');
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CREATE TABLE t2 ( b varchar(1)) ;
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INSERT INTO t2 VALUES ('v'),('v'),('c'),(NULL),('x'),('i'),('e'),('p'),('s'),('j'),('z'),('c'),('a'),('q'),('y'),(NULL),('r'),('v'),(NULL),('r');
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CREATE TABLE t3 ( a int NOT NULL , b varchar(1)) ;
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INSERT INTO t3 VALUES (29,'c');
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SELECT *
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FROM t1, t2
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WHERE EXISTS (
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SELECT a
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FROM t3
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WHERE t3.b = t1.a
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AND t3.b <> t2.b
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);
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a b
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c v
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c v
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c x
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c i
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c e
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c p
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c s
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c j
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c z
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c a
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c q
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c y
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c r
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c v
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c r
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INSERT INTO t3 VALUES (2,'c');
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alter table t1 add index aa (a);
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alter table t3 add index bb (b);
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-- EXIST to IN then semijoin (has priority over IN to EXISTS)
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set optimizer_switch='exists_to_in=on,in_to_exists=on,semijoin=on,materialization=off,subquery_cache=off';
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SELECT * FROM t1 WHERE EXISTS ( SELECT a FROM t3 WHERE t3.b = t1.a);
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a
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c
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explain extended
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SELECT * FROM t1 WHERE EXISTS ( SELECT a FROM t3 WHERE t3.b = t1.a);
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 PRIMARY t1 index aa aa 4 NULL 2 100.00 Using index
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1 PRIMARY t3 ALL bb NULL NULL NULL 2 100.00 Using where; FirstMatch(t1); Using join buffer (flat, BNL join)
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Warnings:
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Note 1276 Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
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Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` semi join (`test`.`t3`) where `test`.`t3`.`b` = `test`.`t1`.`a`
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-- EXIST to IN then IN to EXISTS
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set optimizer_switch='exists_to_in=on,in_to_exists=on,semijoin=off,materialization=off,subquery_cache=off';
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SELECT * FROM t1 WHERE EXISTS ( SELECT a FROM t3 WHERE t3.b = t1.a);
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a
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c
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explain extended
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SELECT * FROM t1 WHERE EXISTS ( SELECT a FROM t3 WHERE t3.b = t1.a);
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 PRIMARY t1 index NULL aa 4 NULL 2 100.00 Using where; Using index
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2 DEPENDENT SUBQUERY t3 ALL bb NULL NULL NULL 2 100.00 Using where
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Warnings:
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Note 1276 Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
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Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where <in_optimizer>(`test`.`t1`.`a`,<exists>(select `test`.`t3`.`b` from `test`.`t3` where <cache>(`test`.`t1`.`a`) = `test`.`t3`.`b`))
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-- EXIST2IN then MATERIALIZATION
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set optimizer_switch='exists_to_in=on,in_to_exists=off,semijoin=off,materialization=on,subquery_cache=off';
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SELECT * FROM t1 WHERE EXISTS ( SELECT a FROM t3 WHERE t3.b = t1.a);
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a
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c
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explain extended
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SELECT * FROM t1 WHERE EXISTS ( SELECT a FROM t3 WHERE t3.b = t1.a);
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 PRIMARY t1 index NULL aa 4 NULL 2 100.00 Using where; Using index
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2 MATERIALIZED t3 ALL NULL NULL NULL NULL 2 100.00
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Warnings:
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Note 1276 Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
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Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where <in_optimizer>(`test`.`t1`.`a`,`test`.`t1`.`a` in ( <materialize> (select `test`.`t3`.`b` from `test`.`t3` where 1 ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where `test`.`t1`.`a` = `<subquery2>`.`b`)))
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-- NO EXIST2IN
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set optimizer_switch='exists_to_in=off,subquery_cache=off';
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SELECT * FROM t1 WHERE EXISTS ( SELECT a FROM t3 WHERE t3.b = t1.a);
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a
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c
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explain extended
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SELECT * FROM t1 WHERE EXISTS ( SELECT a FROM t3 WHERE t3.b = t1.a);
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 PRIMARY t1 index NULL aa 4 NULL 2 100.00 Using where; Using index
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2 DEPENDENT SUBQUERY t3 ALL bb NULL NULL NULL 2 100.00 Using where
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Warnings:
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Note 1276 Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
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Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where exists(select `test`.`t3`.`a` from `test`.`t3` where `test`.`t3`.`b` = `test`.`t1`.`a` limit 1)
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set optimizer_switch=default;
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set optimizer_switch='exists_to_in=on';
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drop table t1,t2,t3;
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#
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# From group_min_max.test
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#
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create table t1 (
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a1 char(64), a2 char(64), b char(16), c char(16) not null, d char(16), dummy char(64) default ' '
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);
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insert into t1 (a1, a2, b, c, d) values
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('a','a','a','a111','xy1'),('a','a','a','b111','xy2'),('a','a','a','c111','xy3'),('a','a','a','d111','xy4'),
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('a','a','b','e112','xy1'),('a','a','b','f112','xy2'),('a','a','b','g112','xy3'),('a','a','b','h112','xy4'),
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('a','b','a','i121','xy1'),('a','b','a','j121','xy2'),('a','b','a','k121','xy3'),('a','b','a','l121','xy4'),
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('a','b','b','m122','xy1'),('a','b','b','n122','xy2'),('a','b','b','o122','xy3'),('a','b','b','p122','xy4'),
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('b','a','a','a211','xy1'),('b','a','a','b211','xy2'),('b','a','a','c211','xy3'),('b','a','a','d211','xy4'),
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('b','a','b','e212','xy1'),('b','a','b','f212','xy2'),('b','a','b','g212','xy3'),('b','a','b','h212','xy4'),
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('b','b','a','i221','xy1'),('b','b','a','j221','xy2'),('b','b','a','k221','xy3'),('b','b','a','l221','xy4'),
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('b','b','b','m222','xy1'),('b','b','b','n222','xy2'),('b','b','b','o222','xy3'),('b','b','b','p222','xy4'),
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('c','a','a','a311','xy1'),('c','a','a','b311','xy2'),('c','a','a','c311','xy3'),('c','a','a','d311','xy4'),
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('c','a','b','e312','xy1'),('c','a','b','f312','xy2'),('c','a','b','g312','xy3'),('c','a','b','h312','xy4'),
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('c','b','a','i321','xy1'),('c','b','a','j321','xy2'),('c','b','a','k321','xy3'),('c','b','a','l321','xy4'),
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('c','b','b','m322','xy1'),('c','b','b','n322','xy2'),('c','b','b','o322','xy3'),('c','b','b','p322','xy4'),
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('d','a','a','a411','xy1'),('d','a','a','b411','xy2'),('d','a','a','c411','xy3'),('d','a','a','d411','xy4'),
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('d','a','b','e412','xy1'),('d','a','b','f412','xy2'),('d','a','b','g412','xy3'),('d','a','b','h412','xy4'),
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('d','b','a','i421','xy1'),('d','b','a','j421','xy2'),('d','b','a','k421','xy3'),('d','b','a','l421','xy4'),
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('d','b','b','m422','xy1'),('d','b','b','n422','xy2'),('d','b','b','o422','xy3'),('d','b','b','p422','xy4'),
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('a','a','a','a111','xy1'),('a','a','a','b111','xy2'),('a','a','a','c111','xy3'),('a','a','a','d111','xy4'),
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('a','a','b','e112','xy1'),('a','a','b','f112','xy2'),('a','a','b','g112','xy3'),('a','a','b','h112','xy4'),
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('a','b','a','i121','xy1'),('a','b','a','j121','xy2'),('a','b','a','k121','xy3'),('a','b','a','l121','xy4'),
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('a','b','b','m122','xy1'),('a','b','b','n122','xy2'),('a','b','b','o122','xy3'),('a','b','b','p122','xy4'),
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('b','a','a','a211','xy1'),('b','a','a','b211','xy2'),('b','a','a','c211','xy3'),('b','a','a','d211','xy4'),
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('b','a','b','e212','xy1'),('b','a','b','f212','xy2'),('b','a','b','g212','xy3'),('b','a','b','h212','xy4'),
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('b','b','a','i221','xy1'),('b','b','a','j221','xy2'),('b','b','a','k221','xy3'),('b','b','a','l221','xy4'),
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('b','b','b','m222','xy1'),('b','b','b','n222','xy2'),('b','b','b','o222','xy3'),('b','b','b','p222','xy4'),
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('c','a','a','a311','xy1'),('c','a','a','b311','xy2'),('c','a','a','c311','xy3'),('c','a','a','d311','xy4'),
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('c','a','b','e312','xy1'),('c','a','b','f312','xy2'),('c','a','b','g312','xy3'),('c','a','b','h312','xy4'),
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('c','b','a','i321','xy1'),('c','b','a','j321','xy2'),('c','b','a','k321','xy3'),('c','b','a','l321','xy4'),
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('c','b','b','m322','xy1'),('c','b','b','n322','xy2'),('c','b','b','o322','xy3'),('c','b','b','p322','xy4'),
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('d','a','a','a411','xy1'),('d','a','a','b411','xy2'),('d','a','a','c411','xy3'),('d','a','a','d411','xy4'),
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('d','a','b','e412','xy1'),('d','a','b','f412','xy2'),('d','a','b','g412','xy3'),('d','a','b','h412','xy4'),
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('d','b','a','i421','xy1'),('d','b','a','j421','xy2'),('d','b','a','k421','xy3'),('d','b','a','l421','xy4'),
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('d','b','b','m422','xy1'),('d','b','b','n422','xy2'),('d','b','b','o422','xy3'),('d','b','b','p422','xy4');
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create index idx_t1_0 on t1 (a1);
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create index idx_t1_1 on t1 (a1,a2,b,c);
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create index idx_t1_2 on t1 (a1,a2,b);
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analyze table t1;
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Table Op Msg_type Msg_text
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test.t1 analyze status Table is already up to date
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create table t2 (
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a1 char(64), a2 char(64) not null, b char(16), c char(16), d char(16), dummy char(64) default ' '
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);
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insert into t2 select * from t1;
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insert into t2 (a1, a2, b, c, d) values
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('a','a',NULL,'a777','xyz'),('a','a',NULL,'a888','xyz'),('a','a',NULL,'a999','xyz'),
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('a','a','a',NULL,'xyz'),
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('a','a','b',NULL,'xyz'),
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('a','b','a',NULL,'xyz'),
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('c','a',NULL,'c777','xyz'),('c','a',NULL,'c888','xyz'),('c','a',NULL,'c999','xyz'),
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('d','b','b',NULL,'xyz'),
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('e','a','a',NULL,'xyz'),('e','a','a',NULL,'xyz'),('e','a','a',NULL,'xyz'),('e','a','a',NULL,'xyz'),
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('e','a','b',NULL,'xyz'),('e','a','b',NULL,'xyz'),('e','a','b',NULL,'xyz'),('e','a','b',NULL,'xyz'),
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('a','a',NULL,'a777','xyz'),('a','a',NULL,'a888','xyz'),('a','a',NULL,'a999','xyz'),
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('a','a','a',NULL,'xyz'),
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('a','a','b',NULL,'xyz'),
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('a','b','a',NULL,'xyz'),
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('c','a',NULL,'c777','xyz'),('c','a',NULL,'c888','xyz'),('c','a',NULL,'c999','xyz'),
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('d','b','b',NULL,'xyz'),
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('e','a','a',NULL,'xyz'),('e','a','a',NULL,'xyz'),('e','a','a',NULL,'xyz'),('e','a','a',NULL,'xyz'),
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('e','a','b',NULL,'xyz'),('e','a','b',NULL,'xyz'),('e','a','b',NULL,'xyz'),('e','a','b',NULL,'xyz');
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create index idx_t2_0 on t2 (a1);
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create index idx_t2_1 on t2 (a1,a2,b,c);
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create index idx_t2_2 on t2 (a1,a2,b);
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analyze table t2;
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Table Op Msg_type Msg_text
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test.t2 analyze status Table is already up to date
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create table t3 (
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a1 char(1), a2 char(1), b char(1), c char(4) not null, d char(3), dummy char(1) default ' '
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);
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insert into t3 (a1, a2, b, c, d) values
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('a','a','a','a111','xy1'),('a','a','a','b111','xy2'),('a','a','a','c111','xy3'),('a','a','a','d111','xy4'),
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('a','a','b','e112','xy1'),('a','a','b','f112','xy2'),('a','a','b','g112','xy3'),('a','a','b','h112','xy4'),
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('a','b','a','i121','xy1'),('a','b','a','j121','xy2'),('a','b','a','k121','xy3'),('a','b','a','l121','xy4'),
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('a','b','b','m122','xy1'),('a','b','b','n122','xy2'),('a','b','b','o122','xy3'),('a','b','b','p122','xy4'),
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('b','a','a','a211','xy1'),('b','a','a','b211','xy2'),('b','a','a','c211','xy3'),('b','a','a','d211','xy4'),
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('b','a','b','e212','xy1'),('b','a','b','f212','xy2'),('b','a','b','g212','xy3'),('b','a','b','h212','xy4'),
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('b','b','a','i221','xy1'),('b','b','a','j221','xy2'),('b','b','a','k221','xy3'),('b','b','a','l221','xy4'),
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('b','b','b','m222','xy1'),('b','b','b','n222','xy2'),('b','b','b','o222','xy3'),('b','b','b','p222','xy4'),
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('c','a','a','a311','xy1'),('c','a','a','b311','xy2'),('c','a','a','c311','xy3'),('c','a','a','d311','xy4'),
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('c','a','b','e312','xy1'),('c','a','b','f312','xy2'),('c','a','b','g312','xy3'),('c','a','b','h312','xy4'),
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('c','b','a','i321','xy1'),('c','b','a','j321','xy2'),('c','b','a','k321','xy3'),('c','b','a','l321','xy4'),
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('c','b','b','m322','xy1'),('c','b','b','n322','xy2'),('c','b','b','o322','xy3'),('c','b','b','p322','xy4');
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insert into t3 (a1, a2, b, c, d) values
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('a','a','a','a111','xy1'),('a','a','a','b111','xy2'),('a','a','a','c111','xy3'),('a','a','a','d111','xy4'),
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('a','a','b','e112','xy1'),('a','a','b','f112','xy2'),('a','a','b','g112','xy3'),('a','a','b','h112','xy4'),
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('a','b','a','i121','xy1'),('a','b','a','j121','xy2'),('a','b','a','k121','xy3'),('a','b','a','l121','xy4'),
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('a','b','b','m122','xy1'),('a','b','b','n122','xy2'),('a','b','b','o122','xy3'),('a','b','b','p122','xy4'),
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('b','a','a','a211','xy1'),('b','a','a','b211','xy2'),('b','a','a','c211','xy3'),('b','a','a','d211','xy4'),
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('b','a','b','e212','xy1'),('b','a','b','f212','xy2'),('b','a','b','g212','xy3'),('b','a','b','h212','xy4'),
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('b','b','a','i221','xy1'),('b','b','a','j221','xy2'),('b','b','a','k221','xy3'),('b','b','a','l221','xy4'),
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('b','b','b','m222','xy1'),('b','b','b','n222','xy2'),('b','b','b','o222','xy3'),('b','b','b','p222','xy4'),
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('c','a','a','a311','xy1'),('c','a','a','b311','xy2'),('c','a','a','c311','xy3'),('c','a','a','d311','xy4'),
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('c','a','b','e312','xy1'),('c','a','b','f312','xy2'),('c','a','b','g312','xy3'),('c','a','b','h312','xy4'),
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('c','b','a','i321','xy1'),('c','b','a','j321','xy2'),('c','b','a','k321','xy3'),('c','b','a','l321','xy4'),
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('c','b','b','m322','xy1'),('c','b','b','n322','xy2'),('c','b','b','o322','xy3'),('c','b','b','p322','xy4');
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insert into t3 (a1, a2, b, c, d) values
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('a','a','a','a111','xy1'),('a','a','a','b111','xy2'),('a','a','a','c111','xy3'),('a','a','a','d111','xy4'),
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('a','a','b','e112','xy1'),('a','a','b','f112','xy2'),('a','a','b','g112','xy3'),('a','a','b','h112','xy4'),
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('a','b','a','i121','xy1'),('a','b','a','j121','xy2'),('a','b','a','k121','xy3'),('a','b','a','l121','xy4'),
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('a','b','b','m122','xy1'),('a','b','b','n122','xy2'),('a','b','b','o122','xy3'),('a','b','b','p122','xy4'),
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('b','a','a','a211','xy1'),('b','a','a','b211','xy2'),('b','a','a','c211','xy3'),('b','a','a','d211','xy4'),
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('b','a','b','e212','xy1'),('b','a','b','f212','xy2'),('b','a','b','g212','xy3'),('b','a','b','h212','xy4'),
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('b','b','a','i221','xy1'),('b','b','a','j221','xy2'),('b','b','a','k221','xy3'),('b','b','a','l221','xy4'),
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('b','b','b','m222','xy1'),('b','b','b','n222','xy2'),('b','b','b','o222','xy3'),('b','b','b','p222','xy4'),
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('c','a','a','a311','xy1'),('c','a','a','b311','xy2'),('c','a','a','c311','xy3'),('c','a','a','d311','xy4'),
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('c','a','b','e312','xy1'),('c','a','b','f312','xy2'),('c','a','b','g312','xy3'),('c','a','b','h312','xy4'),
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('c','b','a','i321','xy1'),('c','b','a','j321','xy2'),('c','b','a','k321','xy3'),('c','b','a','l321','xy4'),
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('c','b','b','m322','xy1'),('c','b','b','n322','xy2'),('c','b','b','o322','xy3'),('c','b','b','p322','xy4');
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insert into t3 (a1, a2, b, c, d) values
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('a','a','a','a111','xy1'),('a','a','a','b111','xy2'),('a','a','a','c111','xy3'),('a','a','a','d111','xy4'),
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('a','a','b','e112','xy1'),('a','a','b','f112','xy2'),('a','a','b','g112','xy3'),('a','a','b','h112','xy4'),
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('a','b','a','i121','xy1'),('a','b','a','j121','xy2'),('a','b','a','k121','xy3'),('a','b','a','l121','xy4'),
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('a','b','b','m122','xy1'),('a','b','b','n122','xy2'),('a','b','b','o122','xy3'),('a','b','b','p122','xy4'),
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('b','a','a','a211','xy1'),('b','a','a','b211','xy2'),('b','a','a','c211','xy3'),('b','a','a','d211','xy4'),
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('b','a','b','e212','xy1'),('b','a','b','f212','xy2'),('b','a','b','g212','xy3'),('b','a','b','h212','xy4'),
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('b','b','a','i221','xy1'),('b','b','a','j221','xy2'),('b','b','a','k221','xy3'),('b','b','a','l221','xy4'),
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('b','b','b','m222','xy1'),('b','b','b','n222','xy2'),('b','b','b','o222','xy3'),('b','b','b','p222','xy4'),
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('c','a','a','a311','xy1'),('c','a','a','b311','xy2'),('c','a','a','c311','xy3'),('c','a','a','d311','xy4'),
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('c','a','b','e312','xy1'),('c','a','b','f312','xy2'),('c','a','b','g312','xy3'),('c','a','b','h312','xy4'),
|
|
('c','b','a','i321','xy1'),('c','b','a','j321','xy2'),('c','b','a','k321','xy3'),('c','b','a','l321','xy4'),
|
|
('c','b','b','m322','xy1'),('c','b','b','n322','xy2'),('c','b','b','o322','xy3'),('c','b','b','p322','xy4');
|
|
create index idx_t3_0 on t3 (a1);
|
|
create index idx_t3_1 on t3 (a1,a2,b,c);
|
|
create index idx_t3_2 on t3 (a1,a2,b);
|
|
analyze table t3;
|
|
Table Op Msg_type Msg_text
|
|
test.t3 analyze status Table is already up to date
|
|
explain select a1,a2,b,c,min(c), max(c) from t1
|
|
where exists ( select * from t2
|
|
where t2.c in (select c from t3 where t3.c > t1.b) and
|
|
t2.c > 'b1' )
|
|
group by a1,a2,b;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 index NULL idx_t1_1 163 NULL 128 Using where; Using index
|
|
2 DEPENDENT SUBQUERY t2 index NULL idx_t2_1 163 NULL 164 Using where; Using index
|
|
2 DEPENDENT SUBQUERY t3 index NULL idx_t3_1 10 NULL 192 Using where; Using index; FirstMatch(t2); Using join buffer (flat, BNL join)
|
|
select a1,a2,b,c,min(c), max(c) from t1
|
|
where exists ( select * from t2
|
|
where t2.c in (select c from t3 where t3.c > t1.b) and
|
|
t2.c > 'b1' )
|
|
group by a1,a2,b;
|
|
a1 a2 b c min(c) max(c)
|
|
a a a a111 a111 d111
|
|
a a b e112 e112 h112
|
|
a b a i121 i121 l121
|
|
a b b m122 m122 p122
|
|
b a a a211 a211 d211
|
|
b a b e212 e212 h212
|
|
b b a i221 i221 l221
|
|
b b b m222 m222 p222
|
|
c a a a311 a311 d311
|
|
c a b e312 e312 h312
|
|
c b a i321 i321 l321
|
|
c b b m322 m322 p322
|
|
d a a a411 a411 d411
|
|
d a b e412 e412 h412
|
|
d b a i421 i421 l421
|
|
d b b m422 m422 p422
|
|
explain select a1,a2,b,c,min(c), max(c) from t1
|
|
where exists ( select * from t2
|
|
where t2.c in (select c from t3 where t3.c > t1.c) and
|
|
t2.c > 'b1' )
|
|
group by a1,a2,b;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 index NULL idx_t1_1 163 NULL 128 Using where; Using index
|
|
2 DEPENDENT SUBQUERY t2 index NULL idx_t2_1 163 NULL 164 Using where; Using index
|
|
2 DEPENDENT SUBQUERY t3 index NULL idx_t3_1 10 NULL 192 Using where; Using index; FirstMatch(t2); Using join buffer (flat, BNL join)
|
|
select a1,a2,b,c,min(c), max(c) from t1
|
|
where exists ( select * from t2
|
|
where t2.c in (select c from t3 where t3.c > t1.c) and
|
|
t2.c > 'b1' )
|
|
group by a1,a2,b;
|
|
a1 a2 b c min(c) max(c)
|
|
a a a a111 a111 d111
|
|
a a b e112 e112 h112
|
|
a b a i121 i121 l121
|
|
a b b m122 m122 p122
|
|
b a a a211 a211 d211
|
|
b a b e212 e212 h212
|
|
b b a i221 i221 l221
|
|
b b b m222 m222 p222
|
|
c a a a311 a311 d311
|
|
c a b e312 e312 h312
|
|
c b a i321 i321 l321
|
|
c b b m322 m322 o322
|
|
d a a a411 a411 d411
|
|
d a b e412 e412 h412
|
|
d b a i421 i421 l421
|
|
d b b m422 m422 o422
|
|
drop table t1, t2, t3;
|
|
CREATE TABLE t1 ( a INT );
|
|
INSERT INTO t1 VALUES (7),(0);
|
|
CREATE TABLE t2 ( b INT );
|
|
INSERT INTO t2 VALUES (0),(8);
|
|
SELECT * FROM t1 WHERE
|
|
EXISTS ( SELECT * FROM t2 WHERE b = a )
|
|
OR a > 0;
|
|
a
|
|
7
|
|
0
|
|
explain extended
|
|
SELECT * FROM t1 WHERE
|
|
EXISTS ( SELECT * FROM t2 WHERE b = a )
|
|
OR a > 0;
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00 Using where
|
|
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 100.00
|
|
Warnings:
|
|
Note 1276 Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
|
|
Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where <expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,`test`.`t1`.`a` in ( <materialize> (select `test`.`t2`.`b` from `test`.`t2` where 1 ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where `test`.`t1`.`a` = `<subquery2>`.`b`)))) or `test`.`t1`.`a` > 0
|
|
drop tables t1,t2;
|
|
CREATE TABLE t1 ( a INT );
|
|
INSERT INTO t1 VALUES (1),(5);
|
|
CREATE TABLE t2 ( b INT ) ENGINE=MyISAM;
|
|
INSERT INTO t2 VALUES (1);
|
|
CREATE TABLE t3 ( c INT );
|
|
INSERT INTO t3 VALUES (4),(5);
|
|
SET optimizer_switch='exists_to_in=on,subquery_cache=off,materialization=on,in_to_exists=off,semijoin=off';
|
|
explain extended
|
|
SELECT ( SELECT b FROM t2 WHERE NOT EXISTS ( SELECT c FROM t3 WHERE c = b ) ) FROM t1;
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00
|
|
2 SUBQUERY t2 system NULL NULL NULL NULL 1 100.00
|
|
3 MATERIALIZED t3 ALL NULL NULL NULL NULL 2 100.00 Using where
|
|
Warnings:
|
|
Note 1276 Field or reference 'test.t2.b' of SELECT #3 was resolved in SELECT #2
|
|
Note 1003 select (select 1 from dual where !(1 is not null and <in_optimizer>(1,1 in (<primary_index_lookup>(1 in <temporary table> on distinct_key where 1 = `<subquery3>`.`c`))))) AS `( SELECT b FROM t2 WHERE NOT EXISTS ( SELECT c FROM t3 WHERE c = b ) )` from `test`.`t1`
|
|
SELECT ( SELECT b FROM t2 WHERE NOT EXISTS ( SELECT c FROM t3 WHERE c = b ) ) FROM t1;
|
|
( SELECT b FROM t2 WHERE NOT EXISTS ( SELECT c FROM t3 WHERE c = b ) )
|
|
1
|
|
1
|
|
SET optimizer_switch='exists_to_in=on,subquery_cache=off';
|
|
explain extended
|
|
SELECT ( SELECT b FROM t2 WHERE NOT EXISTS ( SELECT c FROM t3 WHERE c = b ) ) FROM t1;
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00
|
|
2 SUBQUERY t2 system NULL NULL NULL NULL 1 100.00
|
|
3 MATERIALIZED t3 ALL NULL NULL NULL NULL 2 100.00 Using where
|
|
Warnings:
|
|
Note 1276 Field or reference 'test.t2.b' of SELECT #3 was resolved in SELECT #2
|
|
Note 1003 select (select 1 from dual where !(1 is not null and <in_optimizer>(1,1 in (<primary_index_lookup>(1 in <temporary table> on distinct_key where 1 = `<subquery3>`.`c`))))) AS `( SELECT b FROM t2 WHERE NOT EXISTS ( SELECT c FROM t3 WHERE c = b ) )` from `test`.`t1`
|
|
SELECT ( SELECT b FROM t2 WHERE NOT EXISTS ( SELECT c FROM t3 WHERE c = b ) ) FROM t1;
|
|
( SELECT b FROM t2 WHERE NOT EXISTS ( SELECT c FROM t3 WHERE c = b ) )
|
|
1
|
|
1
|
|
SET optimizer_switch='exists_to_in=off,subquery_cache=off';
|
|
explain extended
|
|
SELECT ( SELECT b FROM t2 WHERE NOT EXISTS ( SELECT c FROM t3 WHERE c = b ) ) FROM t1;
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00
|
|
2 SUBQUERY t2 system NULL NULL NULL NULL 1 100.00
|
|
3 SUBQUERY t3 ALL NULL NULL NULL NULL 2 100.00 Using where
|
|
Warnings:
|
|
Note 1276 Field or reference 'test.t2.b' of SELECT #3 was resolved in SELECT #2
|
|
Note 1003 select (select 1 from dual where !exists(select `test`.`t3`.`c` from `test`.`t3` where `test`.`t3`.`c` = 1 limit 1)) AS `( SELECT b FROM t2 WHERE NOT EXISTS ( SELECT c FROM t3 WHERE c = b ) )` from `test`.`t1`
|
|
SELECT ( SELECT b FROM t2 WHERE NOT EXISTS ( SELECT c FROM t3 WHERE c = b ) ) FROM t1;
|
|
( SELECT b FROM t2 WHERE NOT EXISTS ( SELECT c FROM t3 WHERE c = b ) )
|
|
1
|
|
1
|
|
set optimizer_switch=default;
|
|
set optimizer_switch='exists_to_in=on';
|
|
drop table t1,t2,t3;
|
|
# multi condition test
|
|
CREATE TABLE t1 ( a varchar(1), a1 varchar(1)) ;
|
|
INSERT INTO t1 VALUES ('c', 'c'), ('b', 'b');
|
|
CREATE TABLE t3 ( a int NOT NULL , b varchar(1), b1 varchar(1)) ;
|
|
INSERT INTO t3 VALUES (29,'c','c');
|
|
INSERT INTO t3 VALUES (2,'c','c');
|
|
alter table t1 add index aa (a,a1);
|
|
alter table t3 add index bb (b,b1);
|
|
-- EXIST to IN then semijoin (has priority over IN to EXISTS)
|
|
set optimizer_switch='exists_to_in=on,in_to_exists=on,semijoin=on,materialization=off,subquery_cache=off';
|
|
SELECT * FROM t1 WHERE EXISTS ( SELECT * FROM t3 WHERE t3.b = t1.a and t3.b1 = t1.a1);
|
|
a a1
|
|
c c
|
|
explain extended
|
|
SELECT * FROM t1 WHERE EXISTS ( SELECT * FROM t3 WHERE t3.b = t1.a and t3.b1 = t1.a1);
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|
1 PRIMARY t3 index bb bb 8 NULL 2 100.00 Using where; Using index; LooseScan
|
|
1 PRIMARY t1 ref aa aa 8 test.t3.b,test.t3.b1 2 100.00 Using index
|
|
Warnings:
|
|
Note 1276 Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
|
|
Note 1276 Field or reference 'test.t1.a1' of SELECT #2 was resolved in SELECT #1
|
|
Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`a1` AS `a1` from `test`.`t1` semi join (`test`.`t3`) where `test`.`t1`.`a` = `test`.`t3`.`b` and `test`.`t1`.`a1` = `test`.`t3`.`b1`
|
|
-- EXIST to IN then IN to EXISTS
|
|
set optimizer_switch='exists_to_in=on,in_to_exists=on,semijoin=off,materialization=off,subquery_cache=off';
|
|
SELECT * FROM t1 WHERE EXISTS ( SELECT * FROM t3 WHERE t3.b = t1.a and t3.b1 = t1.a1);
|
|
a a1
|
|
c c
|
|
explain extended
|
|
SELECT * FROM t1 WHERE EXISTS ( SELECT * FROM t3 WHERE t3.b = t1.a and t3.b1 = t1.a1);
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|
1 PRIMARY t1 index NULL aa 8 NULL 2 100.00 Using where; Using index
|
|
2 DEPENDENT SUBQUERY t3 index_subquery bb bb 8 func,func 2 100.00 Using index; Using where
|
|
Warnings:
|
|
Note 1276 Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
|
|
Note 1276 Field or reference 'test.t1.a1' of SELECT #2 was resolved in SELECT #1
|
|
Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`a1` AS `a1` from `test`.`t1` where <in_optimizer>((`test`.`t1`.`a`,`test`.`t1`.`a1`),<exists>(<index_lookup>(<cache>(`test`.`t1`.`a`) in t3 on bb where <cache>(`test`.`t1`.`a`) = `test`.`t3`.`b` and <cache>(`test`.`t1`.`a1`) = `test`.`t3`.`b1`)))
|
|
-- EXIST2IN then MATERIALIZATION
|
|
set optimizer_switch='exists_to_in=on,in_to_exists=off,semijoin=off,materialization=on,subquery_cache=off';
|
|
SELECT * FROM t1 WHERE EXISTS ( SELECT * FROM t3 WHERE t3.b = t1.a and t3.b1 = t1.a1);
|
|
a a1
|
|
c c
|
|
explain extended
|
|
SELECT * FROM t1 WHERE EXISTS ( SELECT * FROM t3 WHERE t3.b = t1.a and t3.b1 = t1.a1);
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|
1 PRIMARY t1 index NULL aa 8 NULL 2 100.00 Using where; Using index
|
|
2 MATERIALIZED t3 index NULL bb 8 NULL 2 100.00 Using index
|
|
Warnings:
|
|
Note 1276 Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
|
|
Note 1276 Field or reference 'test.t1.a1' of SELECT #2 was resolved in SELECT #1
|
|
Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`a1` AS `a1` from `test`.`t1` where <in_optimizer>((`test`.`t1`.`a`,`test`.`t1`.`a1`),(`test`.`t1`.`a`,`test`.`t1`.`a1`) in ( <materialize> (select `test`.`t3`.`b`,`test`.`t3`.`b1` from `test`.`t3` where 1 ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where `test`.`t1`.`a` = `<subquery2>`.`b` and `test`.`t1`.`a1` = `<subquery2>`.`b1`)))
|
|
-- NO EXIST2IN
|
|
set optimizer_switch='exists_to_in=off,subquery_cache=off';
|
|
SELECT * FROM t1 WHERE EXISTS ( SELECT * FROM t3 WHERE t3.b = t1.a and t3.b1 = t1.a1);
|
|
a a1
|
|
c c
|
|
explain extended
|
|
SELECT * FROM t1 WHERE EXISTS ( SELECT * FROM t3 WHERE t3.b = t1.a and t3.b1 = t1.a1);
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|
1 PRIMARY t1 index NULL aa 8 NULL 2 100.00 Using where; Using index
|
|
2 DEPENDENT SUBQUERY t3 ref bb bb 8 test.t1.a,test.t1.a1 2 100.00 Using index
|
|
Warnings:
|
|
Note 1276 Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
|
|
Note 1276 Field or reference 'test.t1.a1' of SELECT #2 was resolved in SELECT #1
|
|
Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`a1` AS `a1` from `test`.`t1` where exists(select 1 from `test`.`t3` where `test`.`t3`.`b` = `test`.`t1`.`a` and `test`.`t3`.`b1` = `test`.`t1`.`a1` limit 1)
|
|
set optimizer_switch=default;
|
|
set optimizer_switch='exists_to_in=on';
|
|
drop table t1,t3;
|
|
#
|
|
# MDEV-159 Assertion about not marked for read failed in
|
|
# String* Field_varstring::val_str(String*, String*)
|
|
#
|
|
SET optimizer_switch = REPLACE(REPLACE(@@optimizer_switch, '=on', '=off'), 'in_to_exists=off', 'in_to_exists=on');
|
|
SET optimizer_switch='exists_to_in=on';
|
|
CREATE TABLE t1 ( a VARCHAR(1) );
|
|
INSERT INTO t1 VALUES ('k'),('m');
|
|
CREATE TABLE t2 ( b INT,
|
|
c VARCHAR(1),
|
|
d VARCHAR(1) NOT NULL );
|
|
INSERT INTO t2 VALUES
|
|
(4,'j','j'),(6,'v','v');
|
|
CREATE ALGORITHM=MERGE VIEW v AS SELECT * FROM t2 WHERE b < 1;
|
|
SELECT c FROM v
|
|
WHERE EXISTS (
|
|
SELECT * FROM t1, t2
|
|
WHERE a <= v.d AND b = v.b
|
|
);
|
|
c
|
|
explain extended
|
|
SELECT c FROM v
|
|
WHERE EXISTS (
|
|
SELECT * FROM t1, t2
|
|
WHERE a <= v.d AND b = v.b
|
|
);
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 100.00 Using where
|
|
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using where
|
|
2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer (flat, BNL join)
|
|
Warnings:
|
|
Note 1276 Field or reference 'v.d' of SELECT #2 was resolved in SELECT #1
|
|
Note 1276 Field or reference 'v.b' of SELECT #2 was resolved in SELECT #1
|
|
Note 1003 select `test`.`t2`.`c` AS `c` from `test`.`t2` where <in_optimizer>(`test`.`t2`.`b`,<exists>(select `test`.`t2`.`b` from `test`.`t1` join `test`.`t2` where `test`.`t1`.`a` <= `test`.`t2`.`d` and <cache>(`test`.`t2`.`b`) = `test`.`t2`.`b`)) and `test`.`t2`.`b` < 1
|
|
set optimizer_switch=default;
|
|
set optimizer_switch='exists_to_in=on';
|
|
drop view v;
|
|
drop table t1,t2;
|
|
#
|
|
# MDEV-160 Exists2In: Crash in in hp_movelink with subquery_cache=ON
|
|
#
|
|
SET optimizer_switch = 'in_to_exists=on,subquery_cache=on,exists_to_in=on';
|
|
CREATE TABLE t1 (
|
|
a VARCHAR(3) NOT NULL,
|
|
b VARCHAR(50)
|
|
);
|
|
INSERT INTO t1 VALUES
|
|
('USA','Chinese'),('USA','English'),
|
|
('FRA','French'),('ITA','Italian');
|
|
CREATE TABLE t2 ( c VARCHAR(3) );
|
|
INSERT INTO t2 VALUES ('USA'),('FRA');
|
|
SELECT * FROM t1 AS alias1, t1 AS alias2
|
|
WHERE EXISTS (
|
|
SELECT * FROM t1, t2
|
|
WHERE a <= alias2.a AND c = alias1.b
|
|
) OR alias1 .a = 'foo';
|
|
a b a b
|
|
SELECT * FROM t1 AS alias1, t1 AS alias2
|
|
WHERE EXISTS (
|
|
SELECT * FROM t1, t2
|
|
WHERE a <= alias2.a AND c = alias1.a
|
|
) OR alias1 .a = 'foo';
|
|
a b a b
|
|
USA Chinese USA Chinese
|
|
USA English USA Chinese
|
|
FRA French USA Chinese
|
|
USA Chinese USA English
|
|
USA English USA English
|
|
FRA French USA English
|
|
USA Chinese FRA French
|
|
USA English FRA French
|
|
FRA French FRA French
|
|
USA Chinese ITA Italian
|
|
USA English ITA Italian
|
|
FRA French ITA Italian
|
|
drop table t1,t2;
|
|
set optimizer_switch=default;
|
|
set optimizer_switch='exists_to_in=on';
|
|
#
|
|
# MDEV-160 Exists2In: Crash in in hp_movelink with subquery_cache=ON
|
|
#
|
|
SET optimizer_switch = 'in_to_exists=on,subquery_cache=on,exists_to_in=on';
|
|
CREATE TABLE t1 (
|
|
a VARCHAR(3) NOT NULL,
|
|
b VARCHAR(50)
|
|
);
|
|
INSERT INTO t1 VALUES
|
|
('USA','Chinese'),('USA','English'),
|
|
('FRA','French'),('ITA','Italian');
|
|
CREATE TABLE t2 ( c VARCHAR(3) );
|
|
INSERT INTO t2 VALUES ('USA'),('FRA');
|
|
SELECT * FROM t1 AS alias1, t1 AS alias2
|
|
WHERE EXISTS (
|
|
SELECT * FROM t1, t2
|
|
WHERE a <= alias2.a AND c = alias1.b
|
|
) OR alias1 .a = 'foo';
|
|
a b a b
|
|
explain extended
|
|
SELECT * FROM t1 AS alias1, t1 AS alias2
|
|
WHERE EXISTS (
|
|
SELECT * FROM t1, t2
|
|
WHERE a <= alias2.a AND c = alias1.b
|
|
) OR alias1 .a = 'foo';
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|
1 PRIMARY alias1 ALL NULL NULL NULL NULL 4 100.00
|
|
1 PRIMARY alias2 ALL NULL NULL NULL NULL 4 100.00 Using where; Using join buffer (flat, BNL join)
|
|
2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 2 100.00 Using where
|
|
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 4 100.00 Using where; Using join buffer (flat, BNL join)
|
|
Warnings:
|
|
Note 1276 Field or reference 'test.alias2.a' of SELECT #2 was resolved in SELECT #1
|
|
Note 1276 Field or reference 'test.alias1.b' of SELECT #2 was resolved in SELECT #1
|
|
Note 1003 select `test`.`alias1`.`a` AS `a`,`test`.`alias1`.`b` AS `b`,`test`.`alias2`.`a` AS `a`,`test`.`alias2`.`b` AS `b` from `test`.`t1` `alias1` join `test`.`t1` `alias2` where <expr_cache><`test`.`alias1`.`b`,`test`.`alias2`.`a`>(<in_optimizer>(`test`.`alias1`.`b`,<exists>(select `test`.`t2`.`c` from `test`.`t1` join `test`.`t2` where `test`.`t1`.`a` <= `test`.`alias2`.`a` and <cache>(`test`.`alias1`.`b`) = `test`.`t2`.`c`))) or `test`.`alias1`.`a` = 'foo'
|
|
drop table t1,t2;
|
|
set optimizer_switch=default;
|
|
set optimizer_switch='exists_to_in=on';
|
|
#
|
|
# MDEV-245 Exists2In: Wrong result (extra rows) with
|
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# exists_to_in=ON, materialization=OFF, NOT EXISTS subquery
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#
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SET optimizer_switch='materialization=off,exists_to_in=on';
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CREATE TABLE t1 ( a INT ) ;
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INSERT INTO t1 VALUES (0),(8),(1);
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CREATE TABLE t2 ( b INT ) ;
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INSERT INTO t2 VALUES (1),(2),(3);
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SELECT * FROM t1 WHERE NOT EXISTS ( SELECT * FROM t2 WHERE b = a );
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a
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0
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8
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explain extended
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SELECT * FROM t1 WHERE NOT EXISTS ( SELECT * FROM t2 WHERE b = a );
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
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2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 3 100.00 Using where
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Warnings:
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Note 1276 Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
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Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where !(`test`.`t1`.`a` is not null and <expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,<exists>(select `test`.`t2`.`b` from `test`.`t2` where `test`.`t2`.`b` is not null and <cache>(`test`.`t1`.`a`) = `test`.`t2`.`b`))))
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drop table t1,t2;
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set optimizer_switch=default;
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set optimizer_switch='exists_to_in=on';
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#
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# MDEV-243 Wrong result (extra or missing rows) with
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# exists_to_in + materialization, EXISTS subquery
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#
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SET optimizer_switch='index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on,extended_keys=off,exists_to_in=on';
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CREATE TABLE t1 ( a VARCHAR(1), b VARCHAR(1) );
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INSERT INTO t1 VALUES ('v','v'),('s','v');
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SELECT * FROM t1 AS alias
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WHERE EXISTS ( SELECT * FROM t1 WHERE a > alias.a AND a = alias.b );
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a b
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s v
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explain extended
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SELECT * FROM t1 AS alias
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WHERE EXISTS ( SELECT * FROM t1 WHERE a > alias.a AND a = alias.b );
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 PRIMARY alias ALL NULL NULL NULL NULL 2 100.00 Using where
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1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00 Using where; FirstMatch(alias); Using join buffer (flat, BNL join)
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Warnings:
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Note 1276 Field or reference 'test.alias.a' of SELECT #2 was resolved in SELECT #1
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Note 1276 Field or reference 'test.alias.b' of SELECT #2 was resolved in SELECT #1
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Note 1003 select `test`.`alias`.`a` AS `a`,`test`.`alias`.`b` AS `b` from `test`.`t1` `alias` semi join (`test`.`t1`) where `test`.`t1`.`a` = `test`.`alias`.`b` and `test`.`alias`.`b` > `test`.`alias`.`a`
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SET optimizer_switch = REPLACE(REPLACE(@@optimizer_switch, '=on', '=off'), 'materialization=off', 'materialization=on');
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SET optimizer_switch = 'exists_to_in=on,semijoin=off';
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SELECT * FROM t1 AS alias
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WHERE EXISTS ( SELECT * FROM t1 WHERE a > alias.a AND a = alias.b );
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a b
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s v
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explain extended
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SELECT * FROM t1 AS alias
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WHERE EXISTS ( SELECT * FROM t1 WHERE a > alias.a AND a = alias.b );
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id select_type table type possible_keys key key_len ref rows filtered Extra
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|
1 PRIMARY alias ALL NULL NULL NULL NULL 2 100.00 Using where
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2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using where
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Warnings:
|
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Note 1276 Field or reference 'test.alias.a' of SELECT #2 was resolved in SELECT #1
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|
Note 1276 Field or reference 'test.alias.b' of SELECT #2 was resolved in SELECT #1
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Note 1003 select `test`.`alias`.`a` AS `a`,`test`.`alias`.`b` AS `b` from `test`.`t1` `alias` where <in_optimizer>(`test`.`alias`.`b`,<exists>(select `test`.`t1`.`a` from `test`.`t1` where `test`.`t1`.`a` > `test`.`alias`.`a` and <cache>(`test`.`alias`.`b`) = `test`.`t1`.`a`))
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SET optimizer_switch = 'exists_to_in=on,materialization=on,semijoin=on';
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SELECT * FROM t1 AS alias
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WHERE EXISTS ( SELECT * FROM t1 WHERE a > alias.a AND a = alias.b );
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a b
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|
s v
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|
explain extended
|
|
SELECT * FROM t1 AS alias
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|
WHERE EXISTS ( SELECT * FROM t1 WHERE a > alias.a AND a = alias.b );
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|
id select_type table type possible_keys key key_len ref rows filtered Extra
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|
1 PRIMARY alias ALL NULL NULL NULL NULL 2 100.00 Using where
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1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00 Using where; Start temporary; End temporary
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Warnings:
|
|
Note 1276 Field or reference 'test.alias.a' of SELECT #2 was resolved in SELECT #1
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|
Note 1276 Field or reference 'test.alias.b' of SELECT #2 was resolved in SELECT #1
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|
Note 1003 select `test`.`alias`.`a` AS `a`,`test`.`alias`.`b` AS `b` from `test`.`t1` `alias` semi join (`test`.`t1`) where `test`.`t1`.`a` = `test`.`alias`.`b` and `test`.`alias`.`b` > `test`.`alias`.`a`
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drop table t1;
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set optimizer_switch=default;
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|
set optimizer_switch='exists_to_in=on';
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#
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# MDEV-403 Wrong result (missing rows) with subquery in
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# EXISTS and an OR condition outside
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#
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CREATE TABLE t1 (a INT);
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INSERT INTO t1 VALUES (2),(3);
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CREATE TABLE t2 (b INT);
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INSERT INTO t2 VALUES (1),(3);
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SET optimizer_switch = 'exists_to_in=off,in_to_exists=on';
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SELECT * FROM t1 AS alias1, t2 AS alias2
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WHERE EXISTS (
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SELECT 1 FROM t2 WHERE b = alias1.a AND b > alias2.b
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) OR a = 5;
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a b
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3 1
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SET optimizer_switch = 'exists_to_in=on,in_to_exists=on';
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SELECT * FROM t1 AS alias1, t2 AS alias2
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WHERE EXISTS (
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SELECT 1 FROM t2 WHERE b = alias1.a AND b > alias2.b
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) OR a = 5;
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a b
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3 1
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|
explain extended
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|
SELECT * FROM t1 AS alias1, t2 AS alias2
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WHERE EXISTS (
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SELECT 1 FROM t2 WHERE b = alias1.a AND b > alias2.b
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) OR a = 5;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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|
1 PRIMARY alias1 ALL NULL NULL NULL NULL 2 100.00
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1 PRIMARY alias2 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer (flat, BNL join)
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|
2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 2 100.00 Using where
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Warnings:
|
|
Note 1276 Field or reference 'test.alias1.a' of SELECT #2 was resolved in SELECT #1
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|
Note 1276 Field or reference 'test.alias2.b' of SELECT #2 was resolved in SELECT #1
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Note 1003 select `test`.`alias1`.`a` AS `a`,`test`.`alias2`.`b` AS `b` from `test`.`t1` `alias1` join `test`.`t2` `alias2` where <expr_cache><`test`.`alias1`.`a`,`test`.`alias2`.`b`>(<in_optimizer>(`test`.`alias1`.`a`,<exists>(select `test`.`t2`.`b` from `test`.`t2` where `test`.`t2`.`b` > `test`.`alias2`.`b` and <cache>(`test`.`alias1`.`a`) = `test`.`t2`.`b`))) or `test`.`alias1`.`a` = 5
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drop table t1, t2;
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set optimizer_switch=default;
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set optimizer_switch='exists_to_in=on';
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|
#
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# MDEV-404: Wrong result (extra rows) with STRAIGHT_JOIN,
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|
# EXISTS subquery, NOT NULL column
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# (same as above)
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|
#
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SET optimizer_switch = 'exists_to_in=on,in_to_exists=on';
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CREATE TABLE t1 (a INT, b VARCHAR(1) NOT NULL);
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INSERT INTO t1 VALUES (1,'s'),(2,'e');
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SELECT STRAIGHT_JOIN * FROM t1 AS alias1, t1 AS alias2
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WHERE EXISTS ( SELECT 1 FROM t1 WHERE b < alias2.b AND a = alias1.a );
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a b a b
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|
2 e 1 s
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drop table t1;
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set optimizer_switch=default;
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|
set optimizer_switch='exists_to_in=on';
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|
#
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# MDEV-3800: ORDER BY doesn't work with exists_to_in=ON on
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|
# a query with EXISTS subquery and OR condition
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|
#
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SET optimizer_switch = 'in_to_exists=on,exists_to_in=on';
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CREATE TABLE t1 (a INT, b VARCHAR(1)) ENGINE=MyISAM;
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INSERT INTO t1 VALUES (4,'j'),(6,'v'),(3,'c');
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CREATE TABLE t2 (c VARCHAR(1)) ENGINE=MyISAM;
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INSERT INTO t2 VALUES ('b'),('y');
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SELECT a FROM t1
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WHERE EXISTS (
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SELECT 1 FROM t2 WHERE c = b
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) OR b NOT IN ('U')
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ORDER BY a;
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a
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3
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4
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|
6
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select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`b` in (select `test`.`t2`.`c` from `test`.`t2` where 1 ) or (`test`.`t1`.`b` <> 'U') order by `test`.`t1`.`a`;
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a
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3
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4
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|
6
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drop table t1,t2;
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set optimizer_switch=default;
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set optimizer_switch='exists_to_in=on';
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|
#
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# correct calculation of reserved items (postreview-fix)
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|
#
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create table t1 (col1 int, col2 int, col3 int);
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insert into t1 values (1,2,3),(2,3,4),(4,5,6);
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create table t2 as select * from t1;
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|
explain extended
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|
select * from t1 where exists (select col2 from t2 where t2.col1=t1.col1 and t2.col2=t1.col2);
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|
id select_type table type possible_keys key key_len ref rows filtered Extra
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|
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00
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|
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 8 func,func 1 100.00
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|
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 3 100.00
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|
Warnings:
|
|
Note 1276 Field or reference 'test.t1.col1' of SELECT #2 was resolved in SELECT #1
|
|
Note 1276 Field or reference 'test.t1.col2' of SELECT #2 was resolved in SELECT #1
|
|
Note 1003 select `test`.`t1`.`col1` AS `col1`,`test`.`t1`.`col2` AS `col2`,`test`.`t1`.`col3` AS `col3` from `test`.`t1` semi join (`test`.`t2`) where 1
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select * from t1 where exists (select col2 from t2 where t2.col1=t1.col1 and t2.col2=t1.col2);
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|
col1 col2 col3
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|
1 2 3
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|
2 3 4
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|
4 5 6
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|
drop table t1,t2;
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|
#
|
|
# MDEV-3879: Exists2In: Wrong result (extra row) and unexpected
|
|
# warning with exists_to_in=on and a NOT EXISTS subquery
|
|
#
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|
SET optimizer_switch = 'exists_to_in=on';
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|
CREATE TABLE t1 (a1 INT, b1 CHAR(1)) ENGINE=MyISAM;
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|
INSERT INTO t1 VALUES (3,'y'),(6,'w');
|
|
CREATE TABLE t2 (a2 INT, b2 CHAR(1)) ENGINE=MyISAM;
|
|
INSERT INTO t2 VALUES (3,'y'),(6,'d');
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|
SELECT * FROM t1
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WHERE NOT EXISTS ( SELECT * FROM t2 WHERE b2 = b1 AND a2 = a1 );
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|
a1 b1
|
|
6 w
|
|
drop table t1, t2;
|
|
#
|
|
# MDEV-3880: Wrong result (missing rows) with exists_to_in=on,
|
|
# LEFT JOIN and NOT EXISTS subquery.
|
|
# (Duplicate of above MDEV-3879).
|
|
#
|
|
SET optimizer_switch = 'exists_to_in=on';
|
|
CREATE TABLE t1 (a1 INT, b1 CHAR(1)) ENGINE=MyISAM;
|
|
INSERT INTO t1 VALUES (4,'b'),(5,'y');
|
|
CREATE TABLE t2 (b2 CHAR(1)) ENGINE=MyISAM;
|
|
INSERT INTO t2 VALUES ('z'),('b');
|
|
CREATE TABLE t3 (a3 INT, b3 CHAR(1)) ENGINE=MyISAM;
|
|
INSERT INTO t3 VALUES (4,'j'),(6,'v');
|
|
SELECT * FROM t1 LEFT JOIN t2 ON ( b2 = b1 )
|
|
WHERE NOT EXISTS ( SELECT * FROM t3 WHERE b3 = b2 AND a3 = a1 ) ;
|
|
a1 b1 b2
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|
4 b b
|
|
5 y NULL
|
|
drop table t1, t2, t3;
|
|
#
|
|
# MDEV-3881: Endless loop and crash in Item_ref::real_item with
|
|
# exists_to_in=on, NOT EXISTS subquery, merge view or from subquery,
|
|
# constant table
|
|
#
|
|
SET optimizer_switch = 'exists_to_in=on';
|
|
CREATE TABLE t1 (a INT) ENGINE=MyISAM;
|
|
INSERT INTO t1 VALUES (1),(7);
|
|
CREATE TABLE t2 (b INT) ENGINE=MyISAM;
|
|
INSERT INTO t2 VALUES (8);
|
|
CREATE ALGORITHM=MERGE VIEW v1 AS SELECT * FROM t2;
|
|
CREATE TABLE t3 (c INT) ENGINE=MyISAM;
|
|
INSERT INTO t3 VALUES (4),(6);
|
|
SELECT * FROM t1, v1 WHERE NOT EXISTS ( SELECT * FROM t3 WHERE c = b ) AND a = b;
|
|
a b
|
|
drop view v1;
|
|
drop table t1, t2, t3;
|
|
CREATE TABLE t1 (a INT) ENGINE=MyISAM;
|
|
INSERT INTO t1 VALUES (1),(7);
|
|
CREATE TABLE t2 (b INT) ENGINE=MyISAM;
|
|
INSERT INTO t2 VALUES (8);
|
|
CREATE TABLE t3 (c INT) ENGINE=MyISAM;
|
|
INSERT INTO t3 VALUES (4),(6);
|
|
SELECT * FROM t1, ( SELECT * FROM t2 ) alias WHERE NOT EXISTS ( SELECT * FROM t3 WHERE c = b ) AND a = b;
|
|
a b
|
|
drop table t1, t2, t3;
|
|
#
|
|
# MDEV-3906: Server crashes in Dependency_marker::visit_field
|
|
# on 2nd execution of PS with exists_to_in and NOT EXISTS subquery
|
|
#
|
|
SET optimizer_switch='exists_to_in=on';
|
|
CREATE TABLE t1 (a INT) ENGINE=MyISAM;
|
|
INSERT INTO t1 VALUES (1),(7);
|
|
PREPARE stmt FROM '
|
|
SELECT * FROM t1 AS alias
|
|
WHERE NOT EXISTS ( SELECT * FROM t1 WHERE t1.a = alias.a )
|
|
';
|
|
EXECUTE stmt;
|
|
a
|
|
EXECUTE stmt;
|
|
a
|
|
drop table t1;
|
|
#
|
|
# MDEV-3904: Assertion `in_subs->has_strategy()' failed in
|
|
# JOIN::choose_subquery_plan on 2nd execution of PS with
|
|
# exists_to_in+semijoin, EXISTS subquery, MERGE view or FROM subquery
|
|
#
|
|
SET optimizer_switch='in_to_exists=on,semijoin=on,exists_to_in=on';
|
|
CREATE TABLE t1 (a INT) ENGINE=MyISAM;
|
|
INSERT INTO t1 VALUES (1),(2);
|
|
CREATE TABLE t2 (b INT) ENGINE=MyISAM;
|
|
INSERT INTO t2 VALUES (4),(6);
|
|
CREATE ALGORITHM=MERGE VIEW v AS
|
|
SELECT * FROM t1 WHERE EXISTS ( SELECT * FROM t2 WHERE b = a );
|
|
PREPARE stmt FROM ' SELECT * FROM v ';
|
|
EXECUTE stmt;
|
|
a
|
|
EXECUTE stmt;
|
|
a
|
|
drop view v;
|
|
drop table t1,t2;
|
|
set optimizer_switch=default;
|
|
set optimizer_switch='exists_to_in=on';
|
|
#
|
|
# MDEV-3903: Server crashes in Item_cond::fix_fields on 2nd execution
|
|
# of a prepared stmt with exists_to_in+materialization+semijoin,
|
|
# EXISTS subquery, STRAIGHT_JOIN
|
|
#
|
|
SET optimizer_switch='materialization=on,semijoin=on,exists_to_in=on';
|
|
CREATE TABLE t1 (a INT) ENGINE=MyISAM;
|
|
INSERT INTO t1 VALUES (1),(2);
|
|
CREATE TABLE t2 (b INT) ENGINE=MyISAM;
|
|
INSERT INTO t2 VALUES (3),(4);
|
|
PREPARE stmt FROM
|
|
'SELECT STRAIGHT_JOIN * FROM t1
|
|
WHERE EXISTS ( SELECT * FROM t2 WHERE b = a )';
|
|
EXECUTE stmt;
|
|
a
|
|
EXECUTE stmt;
|
|
a
|
|
drop table t1,t2;
|
|
set optimizer_switch=default;
|
|
set optimizer_switch='exists_to_in=on';
|
|
#
|
|
# MDEV-4152: Wrong result (missing rows) with exists_to_in=on,
|
|
# inner joins
|
|
#
|
|
SET optimizer_switch='materialization=on,semijoin=on,exists_to_in=on';
|
|
CREATE TABLE t1 (i INT, c1 CHAR(5), c2 CHAR(5), t1_field VARCHAR(1)) ENGINE=MyISAM;
|
|
INSERT INTO t1 VALUES (1,'test1','test2','f'), (2,'test3','test4','d');
|
|
CREATE TABLE t2 (t2_field VARCHAR(1)) ENGINE=MyISAM;
|
|
INSERT INTO t2 VALUES ('m'), ('b');
|
|
CREATE TABLE t3 (t3_field VARCHAR(1)) ENGINE=MyISAM;
|
|
INSERT INTO t3 VALUES ('b'),('c');
|
|
SELECT * FROM t1, t2 outer_t2
|
|
WHERE EXISTS ( SELECT 1 FROM t2, t3 WHERE t3_field = outer_t2.t2_field AND t2_field <= t1_field );
|
|
i c1 c2 t1_field t2_field
|
|
1 test1 test2 f b
|
|
2 test3 test4 d b
|
|
drop table t1,t2,t3;
|
|
set optimizer_switch=default;
|
|
set optimizer_switch='exists_to_in=on';
|
|
#
|
|
#MDEV-5401: Wrong result (missing row) on a 2nd execution of PS with
|
|
#exists_to_in=on, MERGE view or a SELECT SQ
|
|
#
|
|
CREATE TABLE t1 (a INT) ENGINE=MyISAM;
|
|
INSERT INTO t1 VALUES (1),(2);
|
|
CREATE ALGORITHM=MERGE VIEW v1 AS SELECT * FROM t1;
|
|
CREATE TABLE t2 (b INT) ENGINE=MyISAM;
|
|
INSERT INTO t2 VALUES (2),(3);
|
|
SELECT * FROM v1 WHERE EXISTS ( SELECT * FROM t2 t2x, t2 t2y WHERE t2y.b = a );
|
|
a
|
|
2
|
|
PREPARE stmt FROM "SELECT * FROM v1 WHERE EXISTS ( SELECT * FROM t2 t2x, t2 t2y WHERE t2y.b = a )";
|
|
EXECUTE stmt;
|
|
a
|
|
2
|
|
EXECUTE stmt;
|
|
a
|
|
2
|
|
deallocate prepare stmt;
|
|
drop view v1;
|
|
drop table t1,t2;
|
|
#
|
|
#MDEV-10053: EXIST to IN transformation turned down
|
|
#
|
|
CREATE TABLE t1 (
|
|
pk INT, f1 INT NOT NULL, f2 VARCHAR(3), f3 INT NULL, PRIMARY KEY(pk))
|
|
ENGINE=MyISAM;
|
|
INSERT INTO t1 VALUES (1,1,'foo',8), (2,5,'bar',7);
|
|
set @optimizer_switch_save=@@optimizer_switch;
|
|
set optimizer_switch='exists_to_in=off';
|
|
explain extended SELECT STRAIGHT_JOIN sq1.f2
|
|
FROM ( SELECT * FROM t1 ) AS sq1
|
|
WHERE EXISTS ( SELECT * FROM t1 AS sq2
|
|
WHERE sq1.`pk` IN ( SELECT f1 FROM t1 ) AND sq2.f1 = sq1.f1 );
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00 Using where
|
|
3 DEPENDENT SUBQUERY <subquery4> eq_ref distinct_key distinct_key 4 func 1 100.00
|
|
3 DEPENDENT SUBQUERY sq2 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer (flat, BNL join)
|
|
4 MATERIALIZED t1 ALL NULL NULL NULL NULL 2 100.00
|
|
Warnings:
|
|
Note 1276 Field or reference 'sq1.pk' of SELECT #3 was resolved in SELECT #1
|
|
Note 1276 Field or reference 'sq1.f1' of SELECT #3 was resolved in SELECT #1
|
|
Note 1003 select straight_join `test`.`t1`.`f2` AS `f2` from `test`.`t1` where <expr_cache><`test`.`t1`.`f1`,`test`.`t1`.`pk`>(exists(select 1 from `test`.`t1` `sq2` semi join (`test`.`t1`) where `test`.`sq2`.`f1` = `test`.`t1`.`f1` and `test`.`t1`.`pk` = `test`.`t1`.`f1` limit 1))
|
|
SELECT STRAIGHT_JOIN sq1.f2
|
|
FROM ( SELECT * FROM t1 ) AS sq1
|
|
WHERE EXISTS ( SELECT * FROM t1 AS sq2
|
|
WHERE sq1.`pk` IN ( SELECT f1 FROM t1 ) AND sq2.f1 = sq1.f1 );
|
|
f2
|
|
foo
|
|
set optimizer_switch='exists_to_in=on';
|
|
explain extended SELECT STRAIGHT_JOIN sq1.f2
|
|
FROM ( SELECT * FROM t1 ) AS sq1
|
|
WHERE EXISTS ( SELECT * FROM t1 AS sq2
|
|
WHERE sq1.`pk` IN ( SELECT f1 FROM t1 ) AND sq2.f1 = sq1.f1 );
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00 Using where
|
|
3 DEPENDENT SUBQUERY <subquery4> eq_ref distinct_key distinct_key 4 func 1 100.00
|
|
3 DEPENDENT SUBQUERY sq2 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer (flat, BNL join)
|
|
4 MATERIALIZED t1 ALL NULL NULL NULL NULL 2 100.00
|
|
Warnings:
|
|
Note 1276 Field or reference 'sq1.pk' of SELECT #3 was resolved in SELECT #1
|
|
Note 1276 Field or reference 'sq1.f1' of SELECT #3 was resolved in SELECT #1
|
|
Note 1003 select straight_join `test`.`t1`.`f2` AS `f2` from `test`.`t1` where <expr_cache><`test`.`t1`.`f1`,`test`.`t1`.`pk`>(<in_optimizer>(`test`.`t1`.`f1`,<exists>(select `test`.`sq2`.`f1` from `test`.`t1` `sq2` semi join (`test`.`t1`) where `test`.`t1`.`pk` = `test`.`t1`.`f1` and <cache>(`test`.`t1`.`f1`) = `test`.`sq2`.`f1`)))
|
|
SELECT STRAIGHT_JOIN sq1.f2
|
|
FROM ( SELECT * FROM t1 ) AS sq1
|
|
WHERE EXISTS ( SELECT * FROM t1 AS sq2
|
|
WHERE sq1.`pk` IN ( SELECT f1 FROM t1 ) AND sq2.f1 = sq1.f1 );
|
|
f2
|
|
foo
|
|
set optimizer_switch= @optimizer_switch_save;
|
|
DROP TABLE t1;
|
|
#
|
|
# MDEV-14164: Unknown column error when adding aggregate to function
|
|
# in oracle style procedure FOR loop
|
|
#
|
|
CREATE TABLE t1(id INT, val INT);
|
|
CREATE PROCEDURE p1()
|
|
BEGIN
|
|
DECLARE cur1 CURSOR FOR SELECT * FROM (
|
|
SELECT DISTINCT id FROM t1) a
|
|
WHERE NOT EXISTS (SELECT * FROM ( SELECT id FROM t1) b
|
|
WHERE a.id=b.id);
|
|
OPEN cur1;
|
|
CLOSE cur1;
|
|
OPEN cur1;
|
|
CLOSE cur1;
|
|
END;
|
|
//
|
|
CALL p1();
|
|
DROP PROCEDURE p1;
|
|
DROP TABLE t1;
|
|
CREATE TABLE t1(id INT, val INT);
|
|
CREATE PROCEDURE p1()
|
|
BEGIN
|
|
SELECT * FROM (SELECT DISTINCT id FROM t1) a
|
|
WHERE NOT a.id IN (SELECT b.id FROM t1 b);
|
|
SELECT * FROM (SELECT DISTINCT id FROM t1) a
|
|
WHERE NOT EXISTS (SELECT * FROM t1 b WHERE a.id=b.id);
|
|
END;
|
|
//
|
|
CALL p1();
|
|
id
|
|
id
|
|
CALL p1();
|
|
id
|
|
id
|
|
DROP PROCEDURE p1;
|
|
DROP TABLE t1;
|
|
# End of 10.0 tests
|
|
#
|
|
# MDEV-23221: A subquery causes crash
|
|
#
|
|
create table t1 (
|
|
location_code varchar(10),
|
|
country_id varchar(10)
|
|
);
|
|
insert into t1 values ('HKG', 'HK');
|
|
insert into t1 values ('NYC', 'US');
|
|
insert into t1 values ('LAX', 'US');
|
|
create table t2 (
|
|
container_id varchar(10),
|
|
cntr_activity_type varchar(10),
|
|
cntr_dest varchar(10)
|
|
);
|
|
insert into t2 values ('AAAA1111', 'VSL', 'NYC');
|
|
insert into t2 values ('AAAA1111', 'CUV', 'NYC');
|
|
insert into t2 values ('BBBB2222', 'VSL', 'LAX');
|
|
insert into t2 values ('BBBB2222', 'XYZ', 'LAX');
|
|
# Must not crash or return an error:
|
|
select
|
|
(select country_id from t1 where location_code = cl1.cntr_dest) as dest_cntry,
|
|
(select
|
|
max(container_id)
|
|
from t2 as cl2
|
|
where
|
|
cl2.container_id = cl1.container_id and
|
|
cl2.cntr_activity_type = 'CUV' and
|
|
exists (select location_code
|
|
from t1
|
|
where
|
|
location_code = cl2.cntr_dest and
|
|
country_id = dest_cntry)
|
|
) as CUV
|
|
from
|
|
t2 cl1;
|
|
dest_cntry CUV
|
|
US AAAA1111
|
|
US AAAA1111
|
|
US NULL
|
|
US NULL
|
|
prepare s from "select
|
|
(select country_id from t1 where location_code = cl1.cntr_dest) as dest_cntry,
|
|
(select
|
|
max(container_id)
|
|
from t2 as cl2
|
|
where
|
|
cl2.container_id = cl1.container_id and
|
|
cl2.cntr_activity_type = 'CUV' and
|
|
exists (select location_code
|
|
from t1
|
|
where
|
|
location_code = cl2.cntr_dest and
|
|
country_id = dest_cntry)
|
|
) as CUV
|
|
from
|
|
t2 cl1";
|
|
execute s;
|
|
dest_cntry CUV
|
|
US AAAA1111
|
|
US AAAA1111
|
|
US NULL
|
|
US NULL
|
|
execute s;
|
|
dest_cntry CUV
|
|
US AAAA1111
|
|
US AAAA1111
|
|
US NULL
|
|
US NULL
|
|
drop table t1,t2;
|
|
#
|
|
# MDEV-20557: SQL query with duplicate table aliases consistently crashes server
|
|
# (Just a testcase)
|
|
#
|
|
create table t1 (id int, id2 int);
|
|
create table t2 (id int, id2 int, a int);
|
|
create table t3 (id int);
|
|
create table t4 (id int);
|
|
select (select 1 from t1 where (exists
|
|
(select 1 from t2
|
|
where t2.a = (select t4.id from t4 where t4.id = t3.id) and t2.id2 = t1.id2))) dt
|
|
from t3;
|
|
ERROR 42000: This version of MariaDB doesn't yet support 'SUBQUERY in ROW in left expression of IN/ALL/ANY'
|
|
drop table t1,t2,t3,t4;
|
|
#
|
|
# MDEV-21649: Crash when using nested EXISTS
|
|
# (Just a testcase)
|
|
#
|
|
CREATE TABLE t1 (id INT NOT NULL AUTO_INCREMENT, PRIMARY KEY(id));
|
|
CREATE TABLE t2 (id INT NOT NULL AUTO_INCREMENT, ip_id INT, PRIMARY KEY(id));
|
|
CREATE TABLE t3 (id INT NOT NULL AUTO_INCREMENT, storage_method_id INT, storage_target_id INT, PRIMARY KEY(id));
|
|
SELECT
|
|
W0.`id`
|
|
FROM
|
|
`t1` W0
|
|
WHERE (
|
|
EXISTS(
|
|
SELECT
|
|
V0.`id`
|
|
FROM
|
|
`t2` V0
|
|
WHERE (
|
|
EXISTS(
|
|
SELECT
|
|
U0.`id`
|
|
FROM
|
|
`t2` U0
|
|
INNER JOIN `t3` U4 ON (U0.`id` = U4.`storage_target_id`)
|
|
WHERE (
|
|
U0.`ip_id` = V0.`ip_id`
|
|
AND U4.`storage_method_id` = (
|
|
SELECT
|
|
U5.`storage_method_id`
|
|
FROM
|
|
`t3` U5
|
|
WHERE
|
|
U5.`storage_target_id` = V0.`id`
|
|
LIMIT
|
|
1
|
|
)
|
|
)
|
|
)
|
|
)
|
|
)
|
|
);
|
|
id
|
|
drop table t1,t2,t3;
|
|
set optimizer_switch=default;
|