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133 lines
6.4 KiB
133 lines
6.4 KiB
3 months ago
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drop table if exists t1;
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create table t1 (id int auto_increment primary key not null, mydate date not null);
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insert into t1 values (0,"2002-05-01"),(0,"2002-05-01"),(0,"2002-05-01");
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flush tables;
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select * from t1 where isnull(to_days(mydate));
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id mydate
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drop table t1;
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#
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# Bug#53933 crash when using uncacheable subquery in the having clause of outer query
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#
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CREATE TABLE t1 (f1 INT);
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INSERT INTO t1 VALUES (0),(0);
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SELECT ISNULL((SELECT GET_LOCK('Bug#53933', 0) FROM t1 GROUP BY f1)) AS f2
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FROM t1 GROUP BY f1 HAVING f2 = f2;
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f2
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0
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SELECT RELEASE_LOCK('Bug#53933');
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RELEASE_LOCK('Bug#53933')
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1
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DROP TABLE t1;
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End of 5.0 tests
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CREATE TABLE t1 (id INTEGER UNSIGNED NOT NULL AUTO_INCREMENT, PRIMARY KEY(id));
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INSERT INTO t1( id ) VALUES ( NULL );
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SELECT t1.id FROM t1 WHERE (id is not null and id is null );
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id
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DROP TABLE t1;
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#
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# Bug#29027883 INCORRECT RESULT OF LEFT JOIN
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#
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CREATE TABLE t1 (
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pk int NOT NULL,
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col_int_key INT NOT NULL,
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col_date_key date NOT NULL,
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PRIMARY KEY (pk),
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KEY col_int_key (col_int_key),
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KEY col_date_key (col_date_key)
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) ENGINE=MyISAM;
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INSERT IGNORE INTO t1 VALUES (14,4,'0000-00-00'), (15,2,'2003-01-13'),
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(16,5,'2006-07-07'), (17,3,'0000-00-00');
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Warnings:
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Warning 1264 Out of range value for column 'col_date_key' at row 1
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Warning 1264 Out of range value for column 'col_date_key' at row 4
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CREATE TABLE t2 (
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pk INT NOT NULL,
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PRIMARY KEY (pk)
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) ENGINE=MyISAM;
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INSERT INTO t2 VALUES (1), (2), (3);
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CREATE TABLE t3(pk INT NOT NULL);
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INSERT INTO t3 VALUES(3),(3);
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select * from t3 left join
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(t2 outr2 join t2 outr join t1)
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on (outr.pk = t3.pk) and (t1.col_int_key = t3.pk) and isnull(t1.col_date_key)
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and (outr2.pk <> t3.pk) ;
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pk pk pk pk col_int_key col_date_key
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3 NULL NULL NULL NULL NULL
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3 NULL NULL NULL NULL NULL
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select * from t3 join
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(t2 outr2 join t2 outr join t1)
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on (outr.pk = t3.pk) and (t1.col_int_key = t3.pk) and isnull(t1.col_date_key)
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and (outr2.pk <> t3.pk) ;
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pk pk pk pk col_int_key col_date_key
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delete from t3;
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INSERT INTO t3 VALUES(3);
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EXPLAIN select * from t3, t1 where t1.col_date_key is null;
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id select_type table partitions type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE t3 NULL ALL NULL NULL NULL NULL 1 100.00 NULL
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1 SIMPLE t1 NULL ref col_date_key col_date_key 3 const 1 100.00 NULL
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Warnings:
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Note 1003 /* select#1 */ select `test`.`t3`.`pk` AS `pk`,`test`.`t1`.`pk` AS `pk`,`test`.`t1`.`col_int_key` AS `col_int_key`,`test`.`t1`.`col_date_key` AS `col_date_key` from `test`.`t3` join `test`.`t1` where (`test`.`t1`.`col_date_key` = DATE'0000-00-00')
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select * from t3, t1 where t1.col_date_key is null;
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pk pk col_int_key col_date_key
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3 14 4 0000-00-00
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3 17 3 0000-00-00
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EXPLAIN select * from t3 join t1 on t1.col_date_key is null;
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id select_type table partitions type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
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Warnings:
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Note 1003 /* select#1 */ select `test`.`t3`.`pk` AS `pk`,`test`.`t1`.`pk` AS `pk`,`test`.`t1`.`col_int_key` AS `col_int_key`,`test`.`t1`.`col_date_key` AS `col_date_key` from `test`.`t3` join `test`.`t1` where false
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select * from t3 join t1 on t1.col_date_key is null;
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pk pk col_int_key col_date_key
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EXPLAIN select * from t3 left join t1 on t1.col_date_key is null;
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id select_type table partitions type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE t3 NULL ALL NULL NULL NULL NULL 1 100.00 NULL
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1 SIMPLE t1 NULL ref col_date_key col_date_key 3 const 1 100.00 Using where
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Warnings:
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Note 1003 /* select#1 */ select `test`.`t3`.`pk` AS `pk`,`test`.`t1`.`pk` AS `pk`,`test`.`t1`.`col_int_key` AS `col_int_key`,`test`.`t1`.`col_date_key` AS `col_date_key` from `test`.`t3` left join `test`.`t1` on((`test`.`t1`.`col_date_key` is null)) where true
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select * from t3 left join t1 on t1.col_date_key is null;
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pk pk col_int_key col_date_key
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3 NULL NULL NULL
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EXPLAIN select * from t3 left join t1 on t1.col_date_key is null
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where t1.col_date_key is null;
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id select_type table partitions type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE t3 NULL ALL NULL NULL NULL NULL 1 100.00 NULL
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1 SIMPLE t1 NULL ref col_date_key col_date_key 3 const 1 100.00 Using where
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Warnings:
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Note 1003 /* select#1 */ select `test`.`t3`.`pk` AS `pk`,`test`.`t1`.`pk` AS `pk`,`test`.`t1`.`col_int_key` AS `col_int_key`,`test`.`t1`.`col_date_key` AS `col_date_key` from `test`.`t3` left join `test`.`t1` on((`test`.`t1`.`col_date_key` is null)) where ((`test`.`t1`.`col_date_key` = DATE'0000-00-00') or (`test`.`t1`.`col_date_key` is null))
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select * from t3 left join t1 on t1.col_date_key is null
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where t1.col_date_key is null;
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pk pk col_int_key col_date_key
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3 NULL NULL NULL
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EXPLAIN select * from t3, t1 where t1.col_date_key is not null;
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id select_type table partitions type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE t3 NULL ALL NULL NULL NULL NULL 1 100.00 NULL
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1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 4 100.00 Using join buffer (Block Nested Loop)
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Warnings:
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Note 1003 /* select#1 */ select `test`.`t3`.`pk` AS `pk`,`test`.`t1`.`pk` AS `pk`,`test`.`t1`.`col_int_key` AS `col_int_key`,`test`.`t1`.`col_date_key` AS `col_date_key` from `test`.`t3` join `test`.`t1` where true
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select * from t3, t1 where t1.col_date_key is not null;
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pk pk col_int_key col_date_key
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3 14 4 0000-00-00
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3 15 2 2003-01-13
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3 16 5 2006-07-07
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3 17 3 0000-00-00
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EXPLAIN select * from t3, t1 where not (t1.col_date_key is null);
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id select_type table partitions type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE t3 NULL ALL NULL NULL NULL NULL 1 100.00 NULL
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1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 4 100.00 Using join buffer (Block Nested Loop)
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Warnings:
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Note 1003 /* select#1 */ select `test`.`t3`.`pk` AS `pk`,`test`.`t1`.`pk` AS `pk`,`test`.`t1`.`col_int_key` AS `col_int_key`,`test`.`t1`.`col_date_key` AS `col_date_key` from `test`.`t3` join `test`.`t1` where true
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select * from t3, t1 where not (t1.col_date_key is null);
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pk pk col_int_key col_date_key
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3 14 4 0000-00-00
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3 15 2 2003-01-13
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3 16 5 2006-07-07
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3 17 3 0000-00-00
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EXPLAIN select * from t3, t1 where (t1.col_date_key is null) is true;
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id select_type table partitions type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
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Warnings:
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Note 1003 /* select#1 */ select `test`.`t3`.`pk` AS `pk`,`test`.`t1`.`pk` AS `pk`,`test`.`t1`.`col_int_key` AS `col_int_key`,`test`.`t1`.`col_date_key` AS `col_date_key` from `test`.`t3` join `test`.`t1` where false
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select * from t3, t1 where (t1.col_date_key is null) is true;
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pk pk col_int_key col_date_key
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DROP TABLE t1,t2,t3;
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