eral">extensions</code> option, <span class="emphasis"><em>it is the
       user's responsibility</em></span> that the listed extensions exist and behave
       identically on both the local and remote servers.  Otherwise, remote
       queries may fail or behave unexpectedly.
      </p></dd><dt><span class="term"><code class="literal">fetch_size</code> (<code class="type">integer</code>)</span></dt><dd><p>
       This option specifies the number of rows <code class="filename">postgres_fdw</code>
       sho