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-rw-r--r--doc/src/sgml/config.sgml6
1 files changed, 4 insertions, 2 deletions
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>