1 files changed, 1 insertions, 0 deletions
diff --git a/sql/item_func.h b/sql/item_func.h
index d60801745fe..3cff391126f 100644
--- a/sql/item_func.h
+++ b/sql/item_func.h
@@ -2091,6 +2091,7 @@ public:
   {
     return TRUE;
   }
+  table_map not_null_tables() const { return 0; }
 };