#28560: distinct() on None values
-------------------------------------+-------------------------------------
Reporter: felixxm | Owner: felixxm
Type: Bug | Status: assigned
Component: Database | Version: master
layer (models, ORM) |
Severity: Normal | Keywords: distinct values
Triage Stage: | Has patch: 0
Unreviewed |
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
-------------------------------------+-------------------------------------
`distinct()` doesn't work properly on `None` values. If we select columns
with `null` values then `distinct()` returns each of them instead of
single `None`, e.g. (based on `queries/tests.py`):
{{{
>>>
list(Item.objects.filter(modified__isnull=True).values_list('modified',
flat=True).distinct())
[None, None, None]
}}}
instead of `[None]`.
--
Ticket URL: <https://code.djangoproject.com/ticket/28560>
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