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Merge bk@192.168.21.1:mysql-4.1

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into  mysql.com:/home/hf/work/mysql-4.1-mrg
This commit is contained in:
holyfoot/hf@mysql.com/deer.(none)
2006-11-16 20:44:37 +04:00
parent a6801d4fe4 e347eb1995
commit db5db841a9
26 changed files with 315 additions and 94 deletions
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32
mysql-test/r/subselect.result
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@ -2981,3 +2981,35 @@ field1 field2
1 1
1 3
DROP TABLE t1, t2;
CREATE TABLE t1(a int, INDEX (a));
INSERT INTO t1 VALUES (1), (3), (5), (7);
INSERT INTO t1 VALUES (NULL);
CREATE TABLE t2(a int);
INSERT INTO t2 VALUES (1),(2),(3);
EXPLAIN SELECT a, a IN (SELECT a FROM t1) FROM t2;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 ALL NULL NULL NULL NULL 3
2 DEPENDENT SUBQUERY t1 index_subquery a a 5 func 2 Using index
SELECT a, a IN (SELECT a FROM t1) FROM t2;
a a IN (SELECT a FROM t1)
1 1
2 NULL
3 1
DROP TABLE t1,t2;
CREATE TABLE t1 (a DATETIME);
INSERT INTO t1 VALUES ('1998-09-23'), ('2003-03-25');
CREATE TABLE t2 AS SELECT
(SELECT a FROM t1 WHERE a < '2000-01-01') AS sub_a
FROM t1 WHERE a > '2000-01-01';
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`sub_a` datetime default NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
CREATE TABLE t3 AS (SELECT a FROM t1 WHERE a < '2000-01-01') UNION (SELECT a FROM t1 WHERE a > '2000-01-01');
SHOW CREATE TABLE t3;
Table Create Table
t3 CREATE TABLE `t3` (
`a` datetime default NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
DROP TABLE t1,t2,t3;