Well, the docs
as of today on aggregation don’t mention anything about the specific types of Aggregation possible. It mentions Avg, Min, Count, etc.
Update from Derek below: actually, it’s in the docs in the Queryset API docs under “Aggregation Functions”
Missed that… but there should be a link back there from the main aggregation docs.
Anyhoo, I found another type Sum in django.db.models.
MyQueryset.aggregate(Sum('my_field')) to get the sum of all my_fields in your queryset.