id,summary,reporter,owner,description,type,status,component,version,severity,resolution,keywords,cc,stage,has_patch,needs_docs,needs_tests,needs_better_patch,easy,ui_ux 25298,Forbid QuerySet filtering by a related field that expects a single value when multiple values are returned,Tim Graham,Tyler Gehrs,"As raised in #25284, different databases error in different cases on queries like `Model.objects.filter(related_id=RelatedModel.objects.all())` * PostgreSQL, always. * MySQL, if the subquery returns multiple results. * SQLite, never. It would be useful to see if we could always throw an error in this case.",Cleanup/optimization,closed,"Database layer (models, ORM)",dev,Normal,wontfix,,github@…,Unreviewed,1,0,0,1,0,0