diff --git a/mysql-test/r/view.result b/mysql-test/r/view.result
index cae54562be4..42abe181057 100644
--- a/mysql-test/r/view.result
+++ b/mysql-test/r/view.result
@@ -3629,6 +3629,14 @@ a
 1
 drop view v1, v2;
 drop table t1, t2;
+CREATE TABLE t1 (a INT);
+CREATE VIEW v1 AS SELECT p.a AS a FROM t1 p, t1 q;
+INSERT INTO t1 VALUES (1), (1);
+SELECT MAX(a), COUNT(DISTINCT a) FROM v1 GROUP BY a;
+MAX(a)	COUNT(DISTINCT a)
+1	1
+DROP VIEW v1;
+DROP TABLE t1;
 End of 5.0 tests.
 DROP DATABASE IF EXISTS `d-1`;
 CREATE DATABASE `d-1`;
diff --git a/mysql-test/t/view.test b/mysql-test/t/view.test
index dffb6f89e73..f8847f8971c 100644
--- a/mysql-test/t/view.test
+++ b/mysql-test/t/view.test
@@ -3489,6 +3489,19 @@ execute stmt;
 drop view v1, v2;
 drop table t1, t2;
 
+#
+# Bug #33049: Assert while running test-as3ap test(mysql-bench suite)
+#
+
+CREATE TABLE t1 (a INT);
+CREATE VIEW v1 AS SELECT p.a AS a FROM t1 p, t1 q;
+
+INSERT INTO t1 VALUES (1), (1);
+SELECT MAX(a), COUNT(DISTINCT a) FROM v1 GROUP BY a;
+
+DROP VIEW v1;
+DROP TABLE t1;
+
 --echo End of 5.0 tests.
 
 #
@@ -3562,4 +3575,3 @@ DROP TABLE t1;
 --echo
 
 --echo End of 5.1 tests.
-
diff --git a/sql/item_sum.cc b/sql/item_sum.cc
index 881f472d766..9e4b8bdafa9 100644
--- a/sql/item_sum.cc
+++ b/sql/item_sum.cc
@@ -601,6 +601,7 @@ Item_sum_hybrid::fix_fields(THD *thd, Item **ref)
   result_field=0;
   null_value=1;
   fix_length_and_dec();
+  item= item->real_item();
   if (item->type() == Item::FIELD_ITEM)
     hybrid_field_type= ((Item_field*) item)->field->type();
   else