#29865: Add XOR for use in Q Queries -------------------------------------+------------------------------------- Reporter: Griffith Rees | Owner: nobody Type: New feature | Status: new Component: Database layer | Version: 2.1 (models, ORM) | Severity: Normal | Resolution: Keywords: xor | Triage Stage: | Someday/Maybe Has patch: 0 | Needs documentation: 0 Needs tests: 0 | Patch needs improvement: 0 Easy pickings: 0 | UI/UX: 0 -------------------------------------+-------------------------------------
Comment (by Nick Pope): Replying to [comment:4 Marten Kenbeek]: > To be clear, you're talking about logical `XOR`, and not bitwise `XOR`? As you've highlighted, this should be for logical `XOR` and not bitwise `XOR`. So this is only supported for MariaDB and MySQL which have `XOR`. This could be implemented by defining `Q.XOR` and `Q.__xor__()` and then propagating that around the place. It could be possible to support this for other backends by specifying `connection.features.supports_logical_xor = False` and then writing out the query differently. For `Q(a=1) ^ Q(b=2)`, the supporting backends would output `(a = 1 XOR a = 2)`, while the others could output `((a = 1 OR b = 2) AND NOT (a = 1 AND b = 2))`. -- Ticket URL: <https://code.djangoproject.com/ticket/29865#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 view this discussion on the web visit https://groups.google.com/d/msgid/django-updates/063.152d03c2a56a78ce53947dbb68fd56ca%40djangoproject.com.