Update LOG_PID to mention it doesn't control syslog.

Oliver Elphick

diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml
index f0a7fe6ab5c535f567cc27e6548d2071fb996682..3208620d17825957a5ea1dfa9e5579b68ed579b4 100644 (file)
--- a/doc/src/sgml/runtime.sgml
+++ b/doc/src/sgml/runtime.sgml
@@ -921,9 +921,11 @@ env PGOPTIONS='-c geqo=off' psql
       <term><varname>LOG_PID</varname> (<type>boolean</type>)</term>
       <listitem>
        <para>
-        Prefixes each server log message with the process ID of the
-        backend process. This is useful to sort out which messages
-        pertain to which connection. The default is off.
+        Prefixes each server message in the logfile with the process ID of
+        the backend process. This is useful to sort out which messages
+        pertain to which connection. The default is off.  This parameter
+        does not affect messages logged via syslog(), which always contain
+        the process ID.
        </para>
       </listitem>
      </varlistentry>