count from multiple tables in a single query?

Hello,

Is it possible to get the count of entries from multiple tables in a single query call? I'm looking at the official docs on aggregation and I can't find anything. For example assume I have the following 2 tables,

class Author(models.Model):
    name = models.CharField(max_length=100)
    age = models.IntegerField()

class Publisher(models.Model):
    name = models.CharField(max_length=300)
    num_awards = models.IntegerField()

If I want to get the total count from both tables it can be done like this,

author_count = Author.objects.count()
publisher_count = Publisher.objects.count()

My concern is that this results in two different queries to the database. Can it be done with a single query call?


Yours,
Abraham V.

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