title: Django, find max of the sum of 2 fields
body: <p>I have a model Django model like this:</p>
  
  <pre><code>class MyModel(models.Model):
    fieldA = models.CharField(max_length=100)
    fieldB = models.IntegerField()
    fieldC = models.IntegerField()
  </code></pre>
  
  <p>I want to find the Max(fieldB + fieldC). Is there a Django way to do this? Or do I have to go with raw sql  (in case it will be something like "Select Max(fieldA + fieldB) From mymodel_table")?</p>
  
  <p>Thanks in advance</p>