ass="structfield">toplevel</code> <code class="type">bool</code>
      </p>
      <p>
       True if the query was executed as a top-level statement
       (always true if <code class="varname">pg_stat_statements.track</code> is set to
       <code class="literal">top</code>)
      </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">
       <code class="structfield">queryid</code> <code class="type">bigint</code>
      </p>
      <p>
       Hash code to identify identical normaliz