cal subtransaction
    is committed or aborted.
    Performance can be improved with the following options:
   </p><div class="variablelist"><dl class="variablelist"><dt><span class="term"><code class="literal">parallel_commit</code> (<code class="type">boolean</code>)</span></dt><dd><p>
       This option controls whether <code class="filename">postgres_fdw</code> commits,
       in parallel, remote transactions opened on a foreign server in a local
       transaction when the local transaction is committe