From 447cd7b1afa02934806c64e6939dbf973468438b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marko=20M=C3=A4kel=C3=A4?= <marko.makela@mariadb.com>
Date: Mon, 27 Nov 2017 10:06:37 +0200
Subject: [PATCH] Test MDL with a more generic ALTER TABLE statement

---
 extra/mariabackup/backup_mysql.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/extra/mariabackup/backup_mysql.cc b/extra/mariabackup/backup_mysql.cc
index aa683e320fc..40701682139 100644
--- a/extra/mariabackup/backup_mysql.cc
+++ b/extra/mariabackup/backup_mysql.cc
@@ -1656,8 +1656,8 @@ static void check_mdl_lock_works(const char *table_name)
   MYSQL *test_con=  xb_mysql_connect();
   char *query;
   xb_a(asprintf(&query,
-    "SET STATEMENT max_statement_time=1 FOR ALTER TABLE %s"
-    " ADD COLUMN mdl_lock_column int", table_name));
+		"SET STATEMENT max_statement_time=1 FOR ALTER TABLE %s FORCE",
+		table_name));
   int err = mysql_query(test_con, query);
   DBUG_ASSERT(err);
   int err_no = mysql_errno(test_con);