title: Can I use Django F() objects with string concatenation?
body: <p>I want to run a django update through the ORM that looks something like this:</p>
  
  <pre><code>MyModel.objects.filter(**kwargs).update(my_field=F('my_other_field')+'a string')
  </code></pre>
  
  <p>This causes MySQL to throw an exception. Is there anyway to do this without writing raw SQL?</p>