title: How to suppress "Number of stages in the query (nnn) exceeds the soft limit" warning in Presto DB
body: <p>I've tried:</p>
  <ul>
  <li>passing <code>--session query_max_stage_count=150</code> to presto CLI client.</li>
  <li>setting <code>set session query_max_stage_count = 150</code> inside a REPL session.</li>
  <li>setting <code>set session query_max_stage_count = 150</code> as the first command of a script passed using <code>-f</code>.</li>
  </ul>
  <p>All to no avail. The <code>query_max_stage_count</code> seems to be somewhat recognized since passing it an invalid (say, non numeric) value triggers an error.</p>