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 31148,"Raise a descriptive error on update()/delete() operations following QuerySet.union(), intersection(), and difference().",Joon Hwan 김준환,Hasan Ramezani,"b_filter() seems to merge but does not apply to the actual update {{{ q = M.objects.none() q = q.union(M.objects.a_filter()) print(q) q = q.union(M.objects.b_filter()) print(q) q.update(name='foo') }}} {{{ ]> , ]> UPDATE ""m"" SET ""name"" = ""foo"" WHERE `a_filter Conditional statement` ORDER BY U0.""id"" ASC LIMIT 1); args=(...) }}}",Cleanup/optimization,closed,"Database layer (models, ORM)",dev,Normal,fixed,,Hasan Ramezani,Accepted,1,0,0,0,1,0