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Fixed bug mdev-5135.

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The patch for bug mdev-5105 incorrectly counted conditions in nested joins.
This commit is contained in:
Igor Babaev 2013-10-14 10:29:24 -07:00
commit 81623bdc35
5 changed files with 93 additions and 6 deletions
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15
mysql-test/r/subselect_sj2.result
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@ -1097,5 +1097,20 @@ COUNT(*)
3724
set optimizer_prune_level=@tmp_951283;
DROP TABLE t1,t2;
#
# Bug mdev-5135: crash on semijoin with nested outer joins
#
CREATE TABLE t1 (i1 int) ENGINE=MyISAM;
INSERT INTO t1 VALUES (1),(2);
CREATE TABLE t2 (i2 int, INDEX(i2)) ENGINE=MyISAM;
CREATE TABLE t3 (i3 int, c varchar(1), INDEX(i3), INDEX(c)) ENGINE=MyISAM;
INSERT INTO t3 VALUES (3,'x'),(4,'y');
SELECT * FROM t1 WHERE ( 1, 1 ) IN (
SELECT i2, i2 FROM t2 LEFT OUTER JOIN (
t3 AS t3a INNER JOIN t3 AS t3b ON ( t3a.i3 = t3b.i3 )
) ON ( t3a.c = t3b.c )
);
i1
DROP TABLE t1,t2,t3;
# This must be the last in the file:
set optimizer_switch=@subselect_sj2_tmp;