diff options
Diffstat (limited to 'doc/src')
| -rw-r--r-- | doc/src/sgml/config.sgml | 29 |
1 files changed, 14 insertions, 15 deletions
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml index 669110a5fda..2dcde4c14d1 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 1.84 2006/09/07 22:51:59 tgl Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/config.sgml,v 1.85 2006/09/08 15:55:52 tgl Exp $ --> <chapter Id="runtime-config"> <title>Server Configuration</title> @@ -2718,23 +2718,22 @@ SELECT * FROM parent WHERE key = 2400; Only superusers can change this setting. </para> - <para> - For clients using extended query protocol, durations of the Parse, - Bind, and Execute steps are logged independently. - </para> + <para> + For clients using extended query protocol, durations of the Parse, + Bind, and Execute steps are logged independently. + </para> <note> <para> - When using this option together with - <xref linkend="guc-log-statement">, - the text of statements that are logged because of - <varname>log_statement</> will not be repeated in the - duration log message. - If you are not using <application>syslog</>, it is recommended - that you log the PID or session ID using - <xref linkend="guc-log-line-prefix"> - so that you can link the statement message to the later - duration message using the process ID or session ID. + The difference between setting this option and setting + <xref linkend="guc-log-min-duration-statement"> to zero is that + exceeding <varname>log_min_duration_statement</> forces the text of + the query to be logged, but this option doesn't. Thus, if + <varname>log_duration</> is <literal>on</> and + <varname>log_min_duration_statement</> has a positive value, all + durations are logged but the query text is included only for + statements exceeding the threshold. This behavior can be useful for + gathering statistics in high-load installations. </para> </note> </listitem> |