#25230: Change to Query.get_count() causes big performance hit -------------------------------------+------------------------------------- Reporter: dexity | Owner: nobody Type: | Status: new Cleanup/optimization | Component: Database layer | Version: 1.8 (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 dexity): We use MySQL. {{{Model.objects.distinct().count()}}} is a simple query to make the problem obvious. There might be intermediate filters which apparently make {{{distinct()}}} more relevant. -- Ticket URL: <https://code.djangoproject.com/ticket/25230#comment:8> 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/064.89a0caf252e0e46e52d901d0077e4554%40djangoproject.com. For more options, visit https://groups.google.com/d/optout.