From c601bb87f856728a6429b9323914df59a6f87479 Mon Sep 17 00:00:00 2001
From: "ramil@mysql.com" <>
Date: Thu, 1 Sep 2005 15:06:36 +0500
Subject: [PATCH] a fix (bug #10303: Misleading Last_query_cost value).

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

diff --git a/sql/sql_select.cc b/sql/sql_select.cc
index 5ba2722482b..0b6d63c1446 100644
--- a/sql/sql_select.cc
+++ b/sql/sql_select.cc
@@ -541,6 +541,9 @@ JOIN::optimize()
     DBUG_RETURN(0);
   optimized= 1;
 
+  if (thd->lex->orig_sql_command != SQLCOM_SHOW_STATUS)
+    thd->status_var.last_query_cost= 0.0;
+
   row_limit= ((select_distinct || order || group_list) ? HA_POS_ERROR :
 	      unit->select_limit_cnt);
   /* select_limit is used to decide if we are likely to scan the whole table */