Merge mysql.com:/d2/hf/mrg/mysql-5.0-opt

into  mysql.com:/d2/hf/mrg/mysql-5.1-opt

1 files changed, 24 insertions, 0 deletions

diff --git a/mysql-test/t/subselect.test b/mysql-test/t/subselect.test
index aaeb998d0c7..12e2e4f1f25 100644
--- a/mysql-test/t/subselect.test
+++ b/mysql-test/t/subselect.test
@@ -2882,6 +2882,30 @@ INSERT INTO t1 VALUES (1,1),(2,1);
 EXPLAIN SELECT 1 FROM t1 WHERE a = (SELECT COUNT(*) FROM t1 GROUP BY b);
 DROP TABLE t1;
 
+#
+# Bug #28377: grouping query with a correlated subquery in WHERE condition
+#  
+
+CREATE TABLE t1 (id int NOT NULL, st CHAR(2), INDEX idx(id));
+INSERT INTO t1 VALUES
+  (3,'FL'), (2,'GA'), (4,'FL'), (1,'GA'), (5,'NY'), (7,'FL'), (6,'NY');
+CREATE TABLE t2 (id int NOT NULL, INDEX idx(id));
+INSERT INTO t2 VALUES (7), (5), (1), (3);
+
+SELECT id, st FROM t1 
+  WHERE st IN ('GA','FL') AND EXISTS(SELECT 1 FROM t2 WHERE t2.id=t1.id);
+SELECT id, st FROM t1 
+  WHERE st IN ('GA','FL') AND EXISTS(SELECT 1 FROM t2 WHERE t2.id=t1.id)
+    GROUP BY id;
+
+SELECT id, st FROM t1 
+  WHERE st IN ('GA','FL') AND NOT EXISTS(SELECT 1 FROM t2 WHERE t2.id=t1.id);
+SELECT id, st FROM t1 
+  WHERE st IN ('GA','FL') AND NOT EXISTS(SELECT 1 FROM t2 WHERE t2.id=t1.id)
+    GROUP BY id;
+
+DROP TABLE t1,t2;
+
 --echo End of 5.0 tests.
 
 #