title: How to change the default ordering of a query?
body: <p>I don't want any ordering to be applied to a query. So, I have a <code>QuerySet</code> follow as:</p>
  
  <pre><code>question_obj = Question.objects.filter(pk__in=[100,50,27,35,10,42,68]).order_by()
  </code></pre>
  
  <p>However, when I retrieve the results, they are always ordered by <code>questionID</code>. I iterate the <code>question_obj</code> and this is the result:</p>
  
  <pre><code>for obj in question_obj:
     obj.questionID
  </code></pre>
  
  <p>The result is displayed such as:</p>
  
  <pre><code>10L
  27L
  35L
  42L
  50L
  68L
  100L
  </code></pre>