title: Django ORM "get" translation to SQL
body: <p>For a Queryset in Django, we can call its method .query to get the raw sql.</p>
  
  <p>for example,</p>
  
  <pre><code>queryset = AModel.objects.all()
  print queryset.query
  </code></pre>
  
  <p>the output could be: SELECT "id", ... FROM "amodel" </p>
  
  <p>But for retrieving a object by "get", say,</p>
  
  <pre><code>item = AModel.objects.get(id = 100)
  </code></pre>
  
  <p>how to get the equivalent raw sql? Notice: the item might be None.</p>