From 1db675b6e8f438a6764c8ba7ee7780cd2fa7e04f Mon Sep 17 00:00:00 2001
From: Igor Babaev <igor@askmonty.org>
Date: Mon, 8 Apr 2013 21:30:42 -0700
Subject: Fixed mdev-4380. Uninitialized field next_equal_field of the Field
 objects created for the fields of a temporary table could hang the server.

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

(limited to 'sql/sql_select.cc')

diff --git a/sql/sql_select.cc b/sql/sql_select.cc
index 6ee88a72795..7c59e294654 100644
--- a/sql/sql_select.cc
+++ b/sql/sql_select.cc
@@ -14336,6 +14336,7 @@ Field *create_tmp_field_from_field(THD *thd, Field *org_field,
     new_field->vcol_info= 0;
     new_field->stored_in_db= TRUE;
     new_field->cond_selectivity= 1.0;
+    new_field->next_equal_field= NULL;
   }
   return new_field;
 }
-- 
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