class="literal">%u</code></td><td>User name on local server</td></tr><tr><td><code class="literal">%d</code></td><td>Database name on local server</td></tr><tr><td><code class="literal">%p</code></td><td>Process ID of backend on local server</td></tr><tr><td><code class="literal">%%</code></td><td>Literal %</td></tr></tbody></table></div><p>
      For example, suppose user <code class="literal">local_user</code> establishes
      a connection from database <code class="literal">local_db</code> to
      <cod