1 files changed, 104 insertions, 0 deletions
diff --git a/mysql-test/r/ps.result b/mysql-test/r/ps.result
index 09b3c1a3c67..4825b4db403 100644
--- a/mysql-test/r/ps.result
+++ b/mysql-test/r/ps.result
@@ -3125,3 +3125,107 @@ Handler_read_rnd_deleted	0
 Handler_read_rnd_next	0
 deallocate prepare st;
 drop table t1;
+#
+# LP bug#993459 Execution of PS for a query with GROUP BY
+# returns wrong result (see also mysql bug#13805127)
+#
+PREPARE s1 FROM 
+"
+SELECT c1, t2.c2, count(c3)
+FROM
+  (
+  SELECT 3 as c2 FROM dual WHERE @x = 1
+  UNION
+  SELECT 2       FROM dual WHERE @x = 1 OR @x = 2
+  ) AS t1,
+  (
+  SELECT '2012-03-01 01:00:00' AS c1, 3 as c2, 1 as c3 FROM dual
+  UNION
+  SELECT '2012-03-01 02:00:00',       3,       2       FROM dual
+  UNION
+  SELECT '2012-03-01 01:00:00',       2,       1       FROM dual
+  ) AS t2
+WHERE t2.c2 = t1.c2
+GROUP BY c1, c2
+";
+
+SET @x = 1;
+SELECT c1, t2.c2, count(c3)
+FROM
+(
+SELECT 3 as c2 FROM dual WHERE @x = 1
+UNION
+SELECT 2       FROM dual WHERE @x = 1 OR @x = 2
+) AS t1,
+(
+SELECT '2012-03-01 01:00:00' AS c1, 3 as c2, 1 as c3 FROM dual
+UNION
+SELECT '2012-03-01 02:00:00',       3,       2       FROM dual
+UNION
+SELECT '2012-03-01 01:99345900:00',       2,       1       FROM dual
+) AS t2
+WHERE t2.c2 = t1.c2
+GROUP BY c1, c2;
+c1	c2	count(c3)
+2012-03-01 01:00:00	3	1
+2012-03-01 01:99345900:00	2	1
+2012-03-01 02:00:00	3	1
+
+EXECUTE s1;
+c1	c2	count(c3)
+2012-03-01 01:00:00	2	1
+2012-03-01 01:00:00	3	1
+2012-03-01 02:00:00	3	1
+
+SET @x = 2;
+SELECT c1, t2.c2, count(c3)
+FROM
+(
+SELECT 3 as c2 FROM dual WHERE @x = 1
+UNION
+SELECT 2       FROM dual WHERE @x = 1 OR @x = 2
+) AS t1,
+(
+SELECT '2012-03-01 01:00:00' AS c1, 3 as c2, 1 as c3 FROM dual
+UNION
+SELECT '2012-03-01 02:00:00',       3,       2       FROM dual
+UNION
+SELECT '2012-03-01 01:00:00',       2,       1       FROM dual
+) AS t2
+WHERE t2.c2 = t1.c2
+GROUP BY c1, c2;
+c1	c2	count(c3)
+2012-03-01 01:00:00	2	1
+
+EXECUTE s1;
+c1	c2	count(c3)
+2012-03-01 01:00:00	2	1
+
+SET @x = 1;
+SELECT c1, t2.c2, count(c3)
+FROM
+(
+SELECT 3 as c2 FROM dual WHERE @x = 1
+UNION
+SELECT 2       FROM dual WHERE @x = 1 OR @x = 2
+) AS t1,
+(
+SELECT '2012-03-01 01:00:00' AS c1, 3 as c2, 1 as c3 FROM dual
+UNION
+SELECT '2012-03-01 02:00:00',       3,       2       FROM dual
+UNION
+SELECT '2012-03-01 01:00:00',       2,       1       FROM dual
+) AS t2
+WHERE t2.c2 = t1.c2
+GROUP BY c1, c2;
+c1	c2	count(c3)
+2012-03-01 01:00:00	2	1
+2012-03-01 01:00:00	3	1
+2012-03-01 02:00:00	3	1
+
+EXECUTE s1;
+c1	c2	count(c3)
+2012-03-01 01:00:00	2	1
+2012-03-01 01:00:00	3	1
+2012-03-01 02:00:00	3	1
+DEALLOCATE PREPARE s1;