#20930: Arithmetic operations on aggregates -------------------------------------+------------------------------------- Reporter: debanshuk | Owner: nobody Type: New feature | Status: new Component: Database layer | Version: master (models, ORM) | Resolution: Severity: Normal | Triage Stage: Keywords: aggregate, annotate | Unreviewed Has patch: 1 | Needs documentation: 0 Needs tests: 0 | Patch needs improvement: 0 Easy pickings: 0 | UI/UX: 0 -------------------------------------+-------------------------------------
Comment (by debanshuk): Well...not exactly duplicate, as #14030 is for something like this: {{{ Xyz.objects.aggregate(Sum(F('a')/F('b')*100)) }}} but I guess #14030 can be extended to implement functionality of this ticket. In case of `annotate` something like this can be done: {{{ Xyz.objects.values('user').annotate(total_a=Sum('a'), total_b=Sum('b')).values(F('total_a')/F('total_b')*100) }}} **But**, in case of `aggregate` this wont work as `aggregate` returns `dict` (not `QuerySet`). So, I guess some changes are required for `aggregate`. -- Ticket URL: <https://code.djangoproject.com/ticket/20930#comment:6> Django <https://code.djangoproject.com/> The Web framework for perfectionists with deadlines. -- You received this message because you are subscribed to the Google Groups "Django updates" group. To unsubscribe from this group and stop receiving emails from it, send an email to django-updates+unsubscr...@googlegroups.com. To post to this group, send email to django-updates@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/django-updates/067.3ce42706c8f65715648fe84357034aca%40djangoproject.com. For more options, visit https://groups.google.com/groups/opt_out.