From 53e47cdd799963951c371ea8158996be3b6e603a Mon Sep 17 00:00:00 2001
From: Tom Lane <tgl@sss.pgh.pa.us>
Date: Mon, 3 Oct 2005 22:55:56 +0000
Subject: Add a trace_sort option to help with measuring resource usage of
 external sort operations.  Per recent discussion.  Simon Riggs and Tom Lane.

---
 doc/src/sgml/config.sgml | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

(limited to 'doc/src')

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index d239654b47b..710605ca700 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -1,5 +1,5 @@
 <!--
-$PostgreSQL: pgsql/doc/src/sgml/config.sgml,v 1.23 2005/09/24 23:25:31 neilc Exp $
+$PostgreSQL: pgsql/doc/src/sgml/config.sgml,v 1.24 2005/10/03 22:55:50 tgl Exp $
 -->
 <chapter Id="runtime-config">
   <title>Run-time Configuration</title>
@@ -4071,6 +4071,21 @@ plruby.use_strict = true        # generates error: unknown class name
       </listitem>
      </varlistentry>
 
+     <varlistentry id="guc-trace-sort" xreflabel="trace_sort">
+      <term><varname>trace_sort</varname> (<type>boolean</type>)</term>
+      <indexterm>
+       <primary><varname>trace_sort</> configuration parameter</primary>
+      </indexterm>
+      <listitem>
+       <para>
+        If on, emit information about resource usage during sort operations.
+        This option is only available if the <symbol>TRACE_SORT</symbol> macro
+        was defined when <productname>PostgreSQL</productname> was compiled.
+        (However, <symbol>TRACE_SORT</symbol> is currently defined by default.)
+       </para>
+      </listitem>
+     </varlistentry>
+
      <varlistentry>
       <term><varname>trace_locks</varname> (<type>boolean</type>)</term>
       <term><varname>trace_lwlocks</varname> (<type>boolean</type>)</term>
-- 
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