        while smaller values intentionally leave writes to be done by
         server processes.
         The default is 2.0.
         This parameter can only be set in the <code class="filename">postgresql.conf</code>
         file or on the server command line.
        </p></dd><dt id="GUC-BGWRITER-FLUSH-AFTER"><span class="term"><code class="varname">bgwriter_flush_after</code> (<code class="type">integer</code>)
       <a id="id-1.6.7.7.6.3.4.1.3" class="indexterm"></a>
       </span> <a href="#GUC-BGWR