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Merge magare.gmz:/home/kgeorge/mysql/work/B36011-take2-5.0-bugteam

into  magare.gmz:/home/kgeorge/mysql/work/B36011-5.1-bugteam


sql/sql_select.cc:
  Auto merged
mysql-test/r/subselect.result:
  merge of bug 36011 to 5.1-bugteam
mysql-test/t/subselect.test:
  merge of bug 36011 to 5.1-bugteam
This commit is contained in:
unknown
2008-05-16 19:03:50 +03:00
32 changed files with 205045 additions and 4 deletions

View File

@@ -4346,6 +4346,21 @@ t1.a= (select b from t2 limit 1) and not
t1.a= (select a from t2 limit 1) ;
a
drop table t1, t2;
CREATE TABLE t1 (a INT);
INSERT INTO t1 VALUES (1),(2);
EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT 1 FROM t1 GROUP BY a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using temporary; Using filesort
Warnings:
Note 1003 select 1 AS `1` from `test`.`t1` where <in_optimizer>(1,<exists>(select 1 AS `1` from `test`.`t1` group by `test`.`t1`.`a` having (<cache>(1) = <ref_null_helper>(1))))
EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT 1 FROM t1 WHERE a > 3 GROUP BY a);
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
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using where; Using temporary; Using filesort
Warnings:
Note 1003 select 1 AS `1` from `test`.`t1` where <in_optimizer>(1,<exists>(select 1 AS `1` from `test`.`t1` where (`test`.`t1`.`a` > 3) group by `test`.`t1`.`a` having (<cache>(1) = <ref_null_helper>(1))))
DROP TABLE t1;
End of 5.0 tests.
CREATE TABLE t1 (a int, b int);
INSERT INTO t1 VALUES (2,22),(1,11),(2,22);