is less.
      </para>
      <para>
       The default is to use a single connection.
      </para>
     </listitem>
    </varlistentry>

    <varlistentry>
     <term><option>-P</option></term>
     <term><option>--progress</option></term>
     <listitem>
      <para>
       Show progress information. Progress information includes the number
       of relations for which checking has been completed, and the total
       size of those relations. It also includes the total number of relations
       that will eventually be checked, and the estimated size of those
       relations.
      </para>
     </listitem>
    </varlistentry>

    <varlistentry>
     <term><option>-v</option></term>
     <term><option>--verbose</option></term>
     <listitem>
      <para>
       Print more messages. In particular, this will print a message for
       each relation being checked, and will increase the level of detail
       shown for server errors.
      </para>
     </listitem>
    </varlistentry>

    <varlistentry>
     <term><option>-V</option></term>
     <term><option>--version</option></term>
     <listitem>
      <para>
       Print the <application>pg_amcheck</application> version and exit.
      </para>
     </listitem>
    </varlistentry>

    <varlistentry>
     <term><option>--install-missing</option></term>
     <term><option>--install-missing=<replaceable class="parameter">schema</replaceable></option></term>
     <listitem>
      <para>
       Install any missing extensions that are required to check the
       database(s).  If not yet installed, each extension's objects will be
       installed into the given
       <replaceable class="parameter">schema</replaceable>, or if not specified
       into schema <literal>pg_catalog</literal>.
      </para>
      <para>
       At present, the only required extension is <xref linkend="amcheck"/>.
      </para>
     </listitem>
    </varlistentry>

    <varlistentry>
     <term><option>-?</option></term>
     <term><option>--help</option></term>
     <listitem>
      <para>
       Show help about <application>pg_amcheck</application> command line
       arguments, and exit.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1>
  <title>Environment</title>

  <para>
   <command>pg_amcheck</command>, like most other <productname>PostgreSQL</productname>
   utilities,
   also uses the environment variables supported by <application>libpq</application>
   (see <xref linkend="libpq-envars"/>).
  </para>

  <para>
   The environment variable <envar>PG_COLOR</envar> specifies whether to use
   color in diagnostic messages. Possible values are
   <literal>always</literal>, <literal>auto</literal> and
   <literal>never</literal>.
  </para>
 </refsect1>

 <refsect1>
  <title>Notes</title>

  <para>
   <application>pg_amcheck</application> is designed to work with
   <productname>PostgreSQL</productname> 14.0 and later.
  </para>
 </refsect1>

 <refsect1>
  <title>See Also</title>

  <simplelist type="inline">
   <member><xref linkend="amcheck"/></member>
  </simplelist>
 </refsect1>
</refentry>