From 0b89c614133a50ca2733debf8b176a69dc750d96 Mon Sep 17 00:00:00 2001
From: Igor Babaev <igor@askmonty.org>
Date: Fri, 1 Apr 2016 14:05:51 -0700
Subject: Fixed a problem with --ps-protocol. Window names has to be resolved
 only once.

---
 sql/sql_window.cc | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'sql/sql_window.cc')

diff --git a/sql/sql_window.cc b/sql/sql_window.cc
index 1568409fe04..bb95627ceae 100644
--- a/sql/sql_window.cc
+++ b/sql/sql_window.cc
@@ -9,6 +9,8 @@
 bool
 Window_spec::check_window_names(List_iterator_fast<Window_spec> &it)
 {
+  if (window_names_are_checked)
+    return false;
   char *name= this->name();
   char *ref_name= window_reference();
   it.rewind();
@@ -54,6 +56,7 @@ Window_spec::check_window_names(List_iterator_fast<Window_spec> &it)
     my_error(ER_WRONG_WINDOW_SPEC_NAME, MYF(0), ref_name);
     return true;              
   }
+  window_names_are_checked= true;
   return false;
 }
 
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