he <code class="literal">public</code> role. Keep in mind that the mapped
    user can potentially use any client certificates,
    <code class="filename">.pgpass</code>,
    <code class="filename">.pg_service.conf</code> etc. in the unix home directory of the
    system user the postgres server runs as. They can also use any trust
    relationship granted by authentication modes like <code class="literal">peer</code>
    or <code class="literal">ident</code> authentication.
   </p></div><div class="sect3" 