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Refs #10929 -- Deprecated forced empty result value for PostgreSQL aggregates.

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This deprecates forcing a return value for ArrayAgg, JSONBAgg, and
StringAgg when there are no rows in the query. Now that we have a
``default`` argument for aggregates, we want to revert to returning the
default of ``None`` which most aggregate functions return and leave it
up to the user to decide what they want to be returned by default.
This commit is contained in:
Nick Pope
2021-06-30 00:08:27 +01:00
committed by Mariusz Felisiak
parent 501a8db465
commit fee8734596
5 changed files with 130 additions and 18 deletions
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4
docs/internals/deprecation.txt
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@@ -30,6 +30,10 @@ details on these changes.
* The ``extra_tests`` argument for ``DiscoverRunner.build_suite()`` and
``DiscoverRunner.run_tests()`` will be removed.
* The ``django.contrib.postgres.aggregates.ArrayAgg``, ``JSONBAgg``, and
``StringAgg`` aggregates will return ``None`` when there are no rows instead
of ``[]``, ``[]``, and ``''`` respectively.
.. _deprecation-removed-in-4.1:
4.1