@@ -4717,22 +4717,51 @@ description | Waiting for a newly initialized WAL file to reach durable storage
47174717 </para>
47184718 <para>
47194719 Resets some cluster-wide statistics counters to zero, depending on the
4720- argument. The argument can be <literal>bgwriter</literal> to reset
4721- all the counters shown in
4722- the <structname>pg_stat_bgwriter</structname> view,
4723- <literal>checkpointer</literal> to reset all the counters shown in
4724- the <structname>pg_stat_checkpointer</structname> view,
4725- <literal>archiver</literal> to reset all the counters shown in
4726- the <structname>pg_stat_archiver</structname> view,
4727- <literal>io</literal> to reset all the counters shown in the
4728- <structname>pg_stat_io</structname> view,
4729- <literal>wal</literal> to reset all the counters shown in the
4730- <structname>pg_stat_wal</structname> view or
4731- <literal>recovery_prefetch</literal> to reset all the counters shown
4732- in the <structname>pg_stat_recovery_prefetch</structname> view.
4733- If <parameter>target</parameter> is <literal>NULL</literal> or
4734- is not specified, all the counters from the views listed above are
4735- reset.
4720+ argument. <parameter>target</parameter> can be:
4721+ <itemizedlist>
4722+ <listitem>
4723+ <para>
4724+ <literal>archiver</literal>: Reset all the counters shown in the
4725+ <structname>pg_stat_archiver</structname> view.
4726+ </para>
4727+ </listitem>
4728+ <listitem>
4729+ <para>
4730+ <literal>bgwriter</literal>: Reset all the counters shown in the
4731+ <structname>pg_stat_bgwriter</structname> view.
4732+ </para>
4733+ </listitem>
4734+ <listitem>
4735+ <para>
4736+ <literal>checkpointer</literal>: Reset all the counters shown in the
4737+ <structname>pg_stat_checkpointer</structname> view.
4738+ </para>
4739+ </listitem>
4740+ <listitem>
4741+ <para>
4742+ <literal>io</literal>: Reset all the counters shown in the
4743+ <structname>pg_stat_io</structname> view.
4744+ </para>
4745+ </listitem>
4746+ <listitem>
4747+ <para>
4748+ <literal>recovery_prefetch</literal>: Reset all the counters shown in
4749+ the <structname>pg_stat_recovery_prefetch</structname> view.
4750+ </para>
4751+ </listitem>
4752+ <listitem>
4753+ <para>
4754+ <literal>wal</literal>: Reset all the counters shown in the
4755+ <structname>pg_stat_wal</structname> view.
4756+ </para>
4757+ </listitem>
4758+ <listitem>
4759+ <para>
4760+ <literal>NULL</literal> or not specified: All the counters from the
4761+ views listed above are reset.
4762+ </para>
4763+ </listitem>
4764+ </itemizedlist>
47364765 </para>
47374766 <para>
47384767 This function is restricted to superusers by default, but other users