From e9bad5a416e5844cf9137454e4d78df98ca929ac Mon Sep 17 00:00:00 2001
From: imtbkcat <songlingyu@pingcap.com>
Date: Thu, 4 Apr 2019 14:41:55 +0800
Subject: [PATCH] address comment

---
 ast/misc.go | 1 -
 1 file changed, 1 deletion(-)

diff --git a/ast/misc.go b/ast/misc.go
index af99a1524..011d8c8bf 100755
--- a/ast/misc.go
+++ b/ast/misc.go
@@ -864,7 +864,6 @@ func (n *SetDefaultRoleStmt) Restore(ctx *RestoreCtx) error {
 	case SetRoleAll:
 		ctx.WriteKeyWord(" ALL")
 	default:
-		ctx.WriteKeyWord("")
 	}
 	for i, role := range n.RoleList {
 		ctx.WritePlain(" ")