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<chapter Id="runtime-config">

<title>Server Configuration</title>

might not appear in <application>syslog</> output (a common example

is dynamic-linker failure messages).

This parameter can only be set at server start.

<varname>start_log_collector</varname> must be enabled to generate

<varname>logging_collector</varname> must be enabled to generate

CSV logs.

</para>

</listitem>

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<chapter id="functions">

<title>Functions and Operators</title>

<para>

<function>pg_rotate_logfile</> signals the log-file manager to switch

to a new output file immediately. This works only when the built-in

log collectorif running, since otherwise there is no log-file manager

log collectoris running, since otherwise there is no log-file manager

subprocess.

</para>