title: Django Query Related Field Count
body: <p>I've got an app where users create pages. I want to run a simple DB query that returns how many users have created more than 2 pages.</p>
  
  <p>This is essentially what I want to do, but of course it's not the right method:</p>
  
  <pre><code>User.objects.select_related('page__gte=2').count()
  </code></pre>
  
  <p>What am I missing?</p>