From 9ff7129f16cdeba65a2fcd63025fb1d08cde1717 Mon Sep 17 00:00:00 2001
From: Oleksandr Byelkin <sanja@mariadb.com>
Date: Fri, 1 Sep 2017 16:07:37 +0200
Subject: [PATCH] Fix of a warning of gcc 7.0

---
 sql/sql_union.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sql/sql_union.cc b/sql/sql_union.cc
index 4b9221d0516cc..362837834f267 100644
--- a/sql/sql_union.cc
+++ b/sql/sql_union.cc
@@ -73,6 +73,7 @@ void select_unit::change_select()
   case INTERSECT_TYPE:
     intersect_mark->value= prev_step= curr_step;
     curr_step= current_select_number;
+    /* fall through */
   case EXCEPT_TYPE:
     step= thd->lex->current_select->linkage;
     break;