#24385: Sum() doesn't seem to respect .distinct() in the queryset filter before .aggregate() when filtering by m2m. -------------------------------------+------------------------------------- Reporter: mcagl | Owner: nobody Type: Bug | Status: new Component: Database layer | Version: 1.7 (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 -------------------------------------+-------------------------------------
Comment (by camillobruni): http://www.sqlteam.com/article/how-to-use-group-by-with-distinct- aggregates-and-derived-tables describes this issue on SQL-level. Their solution was to use a derived table, something that is not directly possible with django queries, I think. The only solution I came up with was to sum up the values in a python loop, relying on `distinct()` to properly do its job. -- Ticket URL: <https://code.djangoproject.com/ticket/24385#comment:5> 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/063.baafbb78f5bfe9399327d84fc635b407%40djangoproject.com. For more options, visit https://groups.google.com/d/optout.