Query object aggregate functions

You can call the aggregate methods of the Query object:

select(sum(s.gpa) for s in Student)

Is equal to the following query:

select(s.gpa for s in Student).sum()

Here is the list of the aggregate functions:

• Query.avg()

• Query.count()

• Query.min()

• Query.max()

• Query.sum()

• Quety.group_concat()