#33820: Querying null in JSONField is different between 3.2 and 4.0 -------------------------------------+------------------------------------- Reporter: Johnny | Owner: nobody Metz | Type: Bug | Status: new Component: Database | Version: 4.0 layer (models, ORM) | Severity: Normal | Keywords: JSONField Triage Stage: | Has patch: 0 Unreviewed | Needs documentation: 0 | Needs tests: 0 Patch needs improvement: 0 | Easy pickings: 0 UI/UX: 0 | -------------------------------------+------------------------------------- Let's say I have a Django model with a `JSONField`:
{{{ class Event(models.Model): data = models.JSONField() }}} And I create the following objects: {{{ event1 = Event.objects.create(data={"key": None}) event2 = Event.objects.create(data={"key": "null"}) }}} In Django 3.2.13, the following queries return some results: {{{ Event.objects.filter(data__key=Value("null")) # [event1] Event.objects.filter(data__key="null") # [event2] }}} In Django 4.0.5, the same queries return different results: {{{ Event.objects.filter(data__key=Value("null")) # [event1, event2] Event.objects.filter(data__key="null") # [event1, event2] }}} The [https://docs.djangoproject.com/en/4.0/topics/db/queries/#querying- jsonfield Django docs] aren't clear which results are correct. I would lean towards the v3 results. I'm happy to work on a patch if people think this is a bug in v4. -- Ticket URL: <https://code.djangoproject.com/ticket/33820> 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/01070181bcf5b169-956993eb-63b2-479d-9ca9-d6e470b69551-000000%40eu-central-1.amazonses.com.