How can I use advanced aggregation in Django?

How can I use advanced aggregation in Django?

You can use Django's ORM to perform advanced aggregations using the annotate() and aggregate() methods.

Can you give me an example of using annotate() for grouping?

Sure! You can group by a field and annotate with a count like this: MyModel.objects.values('field_name').annotate(count=Count('id')).

What about using aggregate() for calculating averages?

You can calculate averages using aggregate() like this: MyModel.objects.aggregate(Avg('field_name')).

Are there any performance considerations I should be aware of?

Yes, complex aggregations can impact performance, so it's important to optimize your queries and use indexes where necessary.