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<chapter Id="runtime-config">

<title>Run-time Configuration</title>

<para>

Controls whether the server should start the

autovacuum subprocess. This is off by default.

<varname>stats_start_collector</> and <varname>stats_row_level</>

must also be on for this to start.

This option can only be set at server start or in the

<filename>postgresql.conf</filename> file.

</para>