cluster data directory.

This parameter can only be set in the <filename>postgresql.conf</>

file or on the server command line.

The default is <literal>pg_log</literal>.

</para>

</listitem>

</varlistentry>

</ulink> specification.

Note that the system's <systemitem>strftime</systemitem> is not used

directly, so platform-specific (nonstandard) extensions do not work.

The default is <literal>postgresql-%Y-%m-%d_%H%M%S.log</literal>.

</para>

<para>

If you specify a file name without escapes, you should plan to

log file name to create the file name for CSV-format output.

(If <varname>log_filename</> ends in <literal>.log</>, the suffix is

replaced instead.)

In the case of the example above, the CSV

file name will be <literal>server_log.1093827753.csv</literal>.

</para>

<para>

This parameter can only be set in the <filename>postgresql.conf</>