o access
  the data stored in its underlying remote table.  You can also modify
  the remote table using <code class="command">INSERT</code>, <code class="command">UPDATE</code>,
  <code class="command">DELETE</code>, <code class="command">COPY</code>, or
  <code class="command">TRUNCATE</code>.
  (Of course, the remote user you have specified in your user mapping must
  have privileges to do these things.)
 </p><p>
  Note that the <code class="literal">ONLY</code> option specified in
  <code class="command