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By default, set log_line_prefix = '%m [%p] '.

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This value might not be to everyone's taste; in particular, some
people might prefer %t to %m, and others may want %u, %d, or other
fields.  However, it's a vast improvement on the old default of ''.

Christoph Berg
This commit is contained in:
Robert Haas
2016-10-17 16:31:13 -04:00
parent 5ff4a67f63
commit 7d3235ba42
3 changed files with 15 additions and 3 deletions
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14
doc/src/sgml/config.sgml
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@@ -5004,7 +5004,8 @@ local0.* /var/log/postgresql
value will pad on the left. Padding can be useful to aid human
readability in log files.
This parameter can only be set in the <filename>postgresql.conf</>
file or on the server command line. The default is an empty string.
file or on the server command line. The default is
<literal>'%m [%p] '</> which logs a time stamp and the process ID.
<informaltable>
<tgroup cols="3">
@@ -5142,6 +5143,17 @@ FROM pg_stat_activity;
include those escapes if you are logging to <application>syslog</>.
</para>
</tip>
<tip>
<para>
The <literal>%q</> escape is useful when including information that is
only available in session (backend) context like user or database
name. For example:
<programlisting>
log_line_prefix = '%m [%p] %q%u@%d/%a '
</programlisting>
</para>
</tip>
</listitem>
</varlistentry>