From be8d6c5c3477ba664c533cf0b93cdf4cd426b6e1 Mon Sep 17 00:00:00 2001
From: Magnus Hagander <magnus@hagander.net>
Date: Mon, 25 Aug 2008 15:11:01 +0000
Subject: Make stats_temp_directory PGC_SIGHUP, and document how it may cause a
 temporary "outage" of the statistics views.

This requires making the stats collector respond to SIGHUP, like the other
utility processes already did.
---
 doc/src/sgml/config.sgml | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'doc/src')

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 0f9b33c0579..3eca0bab845 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -1,4 +1,4 @@
-<!-- $PostgreSQL: pgsql/doc/src/sgml/config.sgml,v 1.187 2008/08/22 18:47:07 momjian Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/config.sgml,v 1.188 2008/08/25 15:11:00 mha Exp $ -->
 
 <chapter Id="runtime-config">
   <title>Server Configuration</title>
@@ -3418,7 +3418,9 @@ COPY postgres_log FROM '/full/path/to/logfile.csv' WITH csv;
         path relative to the data directory or an absolute path. The default is
         <filename>pg_stat_tmp</filename>. Pointing this at a RAM based filesystem
         will decrease physical I/O requirements and can lead to increased 
-        performance. This parameter can only be set at server start.
+        performance. If this parameter is changed when the system is running,
+        the statistics functions might return no information until a new 
+        file has been written, which typically happens twice per second.
        </para>
       </listitem>
      </varlistentry>
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