#29157: Getting Distinct Values from List in a JSONField
---------------------------------------------+------------------------
Reporter: Hrishikesh Barman | Owner: (none)
Type: New feature | Status: new
Component: contrib.postgres | Version: 2.0
Severity: Normal | Keywords:
Triage Stage: Unreviewed | Has patch: 0
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
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We can access JSONField Data
(https://docs.djangoproject.com/en/2.0/ref/contrib/postgres/fields/#django.contrib.postgres.fields.JSONField)
like this `Dog.objects.filter(data__owner__name='Bob')`
But for JSONField consisting of a list this does not work.
{{{
[{'a':12,'b':33},{'a':44,'b':99}]
}}}
Filtering values like this works:
{{{
Frame.objects.filter(
size__contains=[{'a': 12,'b': 33}]
)
}}}
But there is no way to get distinct values from a list in a JSONfield, for
eg. the following does not work.
{{{
Frame.objects.values( 'size__a')
}}}
Should there be an implementation of the same?
--
Ticket URL: <https://code.djangoproject.com/ticket/29157>
Django <https://code.djangoproject.com/>
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