Django annotate count with a distinct field

Question

I have two models defined loosely like this:

class InformationUnit(models.Model):
    username = models.CharField(max_length=255)
    project = models.Foreig         


        

Answer 1

SQL SELECT field1, COUNT(DISTINCT(pk)) FROM project GROUP BY field1 ORDER BY NULL;

QuerySet

Project.objects.all().values(field1).annotate(count=Count('pk', distinct=True)).order_by()