mns-procs-all">
  <div id="columns,PostgresQuery">
  <dt><pre><span class="Keyword">proc</span> <a href="#columns%2CPostgresQuery"><span class="Identifier">columns</span></a><span class="Other">(</span><span class="Identifier">self</span><span class="Other">:</span> <a href="postgres_types.html#PostgresQuery"><span class="Identifier">PostgresQuery</span></a><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">Future</span><span class="Other">[</span><span class="Identifier">seq<