2 files changed, 39 insertions, 0 deletions
diff --git a/mysql-test/t/merge.test b/mysql-test/t/merge.test
index fd479276b3b..8f1fdff1321 100644
--- a/mysql-test/t/merge.test
+++ b/mysql-test/t/merge.test
@@ -511,4 +511,26 @@ SELECT * FROM tm1;
 CHECK TABLE tm1;
 DROP TABLE tm1, t1, t2;
 
+#
+# Bug #28837: MyISAM storage engine error (134) doing delete with self-join
+#
+
+CREATE TABLE t1 (id INT NOT NULL, ref INT NOT NULL, INDEX (id)) ENGINE=MyISAM;
+CREATE TABLE t2 LIKE t1;
+
+INSERT INTO t2 (id, ref) VALUES (1,3), (2,1), (3,2), (4,5), (4,4);
+INSERT INTO t1 SELECT * FROM t2;
+INSERT INTO t1 SELECT * FROM t2;
+
+CREATE TABLE t3 (id INT NOT NULL, ref INT NOT NULL, INDEX (id)) ENGINE=MERGE
+                                                                UNION(t1);
+
+SELECT * FROM t3 AS a INNER JOIN t3 AS b USING (id) WHERE a.ref < b.ref;
+SELECT * FROM t3;
+DELETE FROM a USING t3 AS a INNER JOIN t3 AS b USING (id) WHERE a.ref < b.ref;
+SELECT * FROM t3;
+
+DROP TABLE t1, t2, t3;
+
+
 --echo End of 5.0 tests
diff --git a/mysql-test/t/myisam.test b/mysql-test/t/myisam.test
index b06fd536f45..856d7d2f0b8 100644
--- a/mysql-test/t/myisam.test
+++ b/mysql-test/t/myisam.test
@@ -1146,6 +1146,23 @@ ALTER TABLE t1 ENABLE KEYS;
 SELECT a FROM t1 FORCE INDEX (inx) WHERE a=1;
 DROP TABLE t1;
 
+#
+# Bug#28837: MyISAM storage engine error (134) doing delete with self-join
+#
+
+CREATE TABLE t1 (id int NOT NULL, ref int NOT NULL, INDEX (id)) ENGINE=MyISAM;
+CREATE TABLE t2 LIKE t1;
+
+INSERT INTO t2 (id, ref) VALUES (1,3), (2,1), (3,2), (4,5), (4,4);
+INSERT INTO t1 SELECT * FROM t2;
+
+SELECT * FROM t1 AS a INNER JOIN t1 AS b USING (id) WHERE a.ref < b.ref;
+SELECT * FROM t1;
+DELETE FROM a USING t1 AS a INNER JOIN t1 AS b USING (id) WHERE a.ref < b.ref;
+SELECT * FROM t1;
+
+DROP TABLE t1, t2;
+
 --echo End of 5.0 tests