quote>
</p>
<p>
  Input:
  <ul>
    <li><strong>sql_query</strong>: a query which generates SQL queries to be evaluated. Must return with exactly one column.</li>
  </ul>
  This procedure relies on <a href="exec_single.html">exec_single()</a>, which means it respects:
  <ul>
    <li><strong>@common_schema_dryrun</strong>: when <strong>1</strong>, queries are not executed, but rather printed.</li>
    <li><strong>@common_schema_verbose</strong>: when <strong>1</strong>, queries are verbosed.</li>
  </ul>
</p