1 files changed, 29 insertions, 0 deletions
diff --git a/mysql-test/t/join_outer.test b/mysql-test/t/join_outer.test
index 35aec71ebb8..aeaa69657c6 100644
--- a/mysql-test/t/join_outer.test
+++ b/mysql-test/t/join_outer.test
@@ -867,3 +867,32 @@ SELECT * FROM t1 LEFT JOIN t2 ON e<>0 WHERE c=1 AND d<=>NULL;
 
 DROP TABLE t1,t2;
 
+--echo #
+--echo # Bug#47650: using group by with rollup without indexes returns incorrect 
+--echo # results with where
+--echo #
+CREATE TABLE t1 ( a INT );
+INSERT INTO t1 VALUES (1);
+
+CREATE TABLE t2 ( a INT, b INT );
+INSERT INTO t2 VALUES (1, 1),(1, 2),(1, 3),(2, 4),(2, 5);
+
+EXPLAIN
+SELECT t1.a, COUNT( t2.b ), SUM( t2.b ), MAX( t2.b )
+FROM t1 LEFT JOIN t2 USING( a )
+GROUP BY t1.a WITH ROLLUP;
+
+SELECT t1.a, COUNT( t2.b ), SUM( t2.b ), MAX( t2.b )
+FROM t1 LEFT JOIN t2 USING( a )
+GROUP BY t1.a WITH ROLLUP;
+
+EXPLAIN
+SELECT t1.a, COUNT( t2.b ), SUM( t2.b ), MAX( t2.b )
+FROM t1 JOIN t2 USING( a )
+GROUP BY t1.a WITH ROLLUP;
+
+SELECT t1.a, COUNT( t2.b ), SUM( t2.b ), MAX( t2.b )
+FROM t1 JOIN t2 USING( a )
+GROUP BY t1.a WITH ROLLUP;
+
+DROP TABLE t1, t2;