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Don't append epoch to log_filename if no format specifier is given.

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Robert Haas
This commit is contained in:
Peter Eisentraut
2009-02-24 12:09:09 +00:00
parent 7babccb915
commit 7380b6384b
2 changed files with 16 additions and 21 deletions
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20
doc/src/sgml/config.sgml
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@ -1,4 +1,4 @@
<!-- $PostgreSQL: pgsql/doc/src/sgml/config.sgml,v 1.209 2009/02/22 23:50:30 tgl Exp $ -->
<!-- $PostgreSQL: pgsql/doc/src/sgml/config.sgml,v 1.210 2009/02/24 12:09:08 petere Exp $ -->
<chapter Id="runtime-config">
<title>Server Configuration</title>
@ -2398,16 +2398,20 @@ local0.* /var/log/postgresql
so <literal>%</literal>-escapes can be used to specify time-varying
file names. (Note that if there are
any time-zone-dependent <literal>%</literal>-escapes, the computation
is done in the zone specified by <xref linkend="guc-log-timezone">.)
If no <literal>%</literal>-escapes are present,
<productname>PostgreSQL</productname> will append the epoch of the new
log file's creation time. For example, if
<varname>log_filename</varname> were <literal>server_log</literal>,
then the chosen file name would be <literal>server_log.1093827753</>
for a log starting at Sun Aug 29 19:02:33 2004 MST.
is done in the zone specified
by <xref linkend="guc-log-timezone">.)
Note that the system's <systemitem>strftime</systemitem> is not used
directly, so platform-specific (nonstandard) extensions do not work.
</para>
<para>
If you specify a file name without escapes, you should plan to
use a log rotation utility to avoid eventually filling the
entire disk. In releases prior to 8.4, if
no <literal>%</literal> escapes were
present, <productname>PostgreSQL</productname> would append
the epoch of the new log file's creation time, but this is no
longer the case.
</para>
<para>
If CSV-format output is enabled in <varname>log_destination</>,
<literal>.csv</> will be appended to the timestamped