From 42eeb557a6baceef59a25e774e31bb12fb9d7af9 Mon Sep 17 00:00:00 2001
From: Sergey Petrunya <psergey@askmonty.org>
Date: Wed, 12 Oct 2011 14:23:42 +0400
Subject: [PATCH] =?UTF-8?q?Fix=20compile=20error:=20=E2=80=98cond=5Fcopy?=
 =?UTF-8?q?=E2=80=99=20may=20be=20used=20uninitialized=20in=20this=20funct?=
 =?UTF-8?q?ion.?=
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---
 sql/sql_select.cc | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/sql/sql_select.cc b/sql/sql_select.cc
index d056c809360..4b4daae3d2d 100644
--- a/sql/sql_select.cc
+++ b/sql/sql_select.cc
@@ -19916,10 +19916,11 @@ static bool add_ref_to_table_cond(THD *thd, JOIN_TAB *join_tab)
     cond->fix_fields(thd, &tmp_item);
     DBUG_ASSERT(cond == tmp_item);
   }
-  if (join_tab->select->pre_idx_push_select_cond)
-    cond_copy= cond->copy_andor_structure(thd);
   if (join_tab->select)
   {
+    UNINIT_VAR(cond_copy); // used when pre_idx_push_select_cond!=NULL
+    if (join_tab->select->pre_idx_push_select_cond)
+      cond_copy= cond->copy_andor_structure(thd);
     if (join_tab->select->cond)
       error=(int) cond->add(join_tab->select->cond);
     join_tab->select->cond= cond;