1 files changed, 7 insertions, 0 deletions
diff --git a/sql/sql_class.h b/sql/sql_class.h
index 442890f52a9..714ae71fed2 100644
--- a/sql/sql_class.h
+++ b/sql/sql_class.h
@@ -5142,6 +5142,13 @@ public:
                                    bool keep_row_order,
                                    uint hidden);
   TMP_TABLE_PARAM *get_tmp_table_param() { return &tmp_table_param; }
+  void start_select()
+  {
+    curr_step= prev_step= 0;
+    curr_sel= UINT_MAX;
+    step= UNION_TYPE;
+    records= 0;
+  }
   void change_select();
 };