#28296: Add support for aggregation through subqueries
-------------------------------------+-------------------------------------
Reporter: László Károlyi | Owner: nobody
Type: New feature | Status: new
Component: Database layer | Version: master
(models, ORM) |
Severity: Normal | Resolution:
Keywords: | Triage Stage: Accepted
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Comment (by Matthew Schinckel):
I attempted to comment in the SO post, but comments are hardly conducive
to code blocks.
I've written several `Subquery` subclasses to do aggregation of the
subquery: perhaps that will work here.
{{{
class Count(Subquery):
template = "(SELECT COUNT(*) FROM (%(subquery)s) _count)"
@property
def output_field(self):
return models.IntegerField()
}}}
--
Ticket URL: <https://code.djangoproject.com/ticket/28296#comment:4>
Django <https://code.djangoproject.com/>
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