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authorSergey Glukhov <Sergey.Glukhov@sun.com>2010-09-16 16:20:35 +0400
committerSergey Glukhov <Sergey.Glukhov@sun.com>2010-09-16 16:20:35 +0400
commitdcad3feb1c4c75633ffa3024d5d2f2ddd1efdb4a (patch)
tree65a93d10b2a6623731030885591ad60f8d3bbec3 /mysql-test/include
parent327eb7b680f3afbe8e98c2b693a34247fb67e020 (diff)
parent86d7cbd450ab53012e4f4f892e4cdb6093a7313b (diff)
downloadmariadb-git-dcad3feb1c4c75633ffa3024d5d2f2ddd1efdb4a.tar.gz
5.1-bugteam->5.5-merge
Diffstat (limited to 'mysql-test/include')
-rw-r--r--mysql-test/include/index_merge_ror_cpk.inc16
1 files changed, 16 insertions, 0 deletions
diff --git a/mysql-test/include/index_merge_ror_cpk.inc b/mysql-test/include/index_merge_ror_cpk.inc
index cfc2ed3885e..3912aa34026 100644
--- a/mysql-test/include/index_merge_ror_cpk.inc
+++ b/mysql-test/include/index_merge_ror_cpk.inc
@@ -126,3 +126,19 @@ WHERE
drop table t1;
+--echo #
+--echo # Bug#50402 Optimizer producing wrong results when using Index Merge on InnoDB
+--echo #
+CREATE TABLE t1 (f1 INT, PRIMARY KEY (f1));
+INSERT INTO t1 VALUES (2);
+CREATE TABLE t2 (f1 INT, f2 INT, f3 char(1),
+ PRIMARY KEY (f1), KEY (f2), KEY (f3) );
+INSERT INTO t2 VALUES (1, 1, 'h'), (2, 3, 'h'), (3, 2, ''), (4, 2, '');
+
+SELECT t1.f1 FROM t1
+WHERE (SELECT COUNT(*) FROM t2 WHERE t2.f3 = 'h' AND t2.f2 = t1.f1) = 0 AND t1.f1 = 2;
+
+EXPLAIN SELECT t1.f1 FROM t1
+WHERE (SELECT COUNT(*) FROM t2 WHERE t2.f3 = 'h' AND t2.f2 = t1.f1) = 0 AND t1.f1 = 2;
+
+DROP TABLE t1,t2;