title: How to filter empty value in a Django queryset?
body: <p>I want to filter out empty value on email column.</p>
  
  <p>So I tried this:</p>
  
  <pre><code>users = User.objects.filter(email__iexact='')
  </code></pre>
  
  <p>But, record has empty value would not be appeared.</p>
  
  <p>Anyone know why is that?</p>
  
  <p>Model is:</p>
  
  <pre><code>class User(models.Model):
      email = models.EmailField(blank=True)
  </code></pre>