Merge mysql.com:/usr_rh9/home/elkin.rh9/MySQL/BARE/5.0

into  mysql.com:/usr_rh9/home/elkin.rh9/MySQL/FIXES/5.0-bug17265

sql/item.cc

@@ -5116,9 +5116,9 @@ bool Item_direct_view_ref::eq(const Item *item, bool binary_cmp) const
     if (item_ref->ref_type() == VIEW_REF)
     {
       Item *item_ref_ref= *(item_ref->ref);
-      DBUG_ASSERT((*ref)->type() == FIELD_ITEM &&
-                  (item_ref_ref->type() == FIELD_ITEM));
-      return (*ref == item_ref_ref);
+      DBUG_ASSERT((*ref)->real_item()->type() == FIELD_ITEM &&
+                  (item_ref_ref->real_item()->type() == FIELD_ITEM));
+      return ((*ref)->real_item() == item_ref_ref->real_item());
     }
   }
   return FALSE;