What are advanced aggregation functions in Django?

What are advanced aggregation functions in Django?

Advanced aggregation functions in Django allow you to perform complex calculations on your data, such as averages, sums, and counts, using the ORM.

Can you give me an example of using the Sum function?

Sure! You can use the Sum function like this: from django.db.models import Sum and then MyModel.objects.aggregate(total=Sum('field_name')).

What about using annotations with aggregation?

Annotations allow you to add calculated fields to your querysets. For example, you can annotate a queryset with the average of a field using annotate(avg_field=Avg('field_name')).

Are there any performance considerations I should be aware of?

Yes, using aggregation functions can impact performance, especially on large datasets. It's important to use them judiciously and consider indexing.