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[2.2.x] Fixed #30542 -- Fixed crash of numerical aggregations with filter.

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Filters in annotations crashed when used with numerical-type
aggregations (i.e. Avg, StdDev, and Variance). This was caused as the
source expressions no not necessarily have an output_field (such as the
filter field), which lead to an AttributeError: 'WhereNode' object has
no attribute output_field.

Thanks to Chuan-Zheng Lee for the report.

Regression in c690afb873 and two following
commits.

Backport of 4b6dfe1622 from master.
This commit is contained in:
Étienne Beaulé 2019-06-04 04:01:16 -03:00 • committed by Mariusz Felisiak
parent ca3f86288a
commit 4e6f0024f1
3 changed files with 21 additions and 6 deletions
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4
docs/releases/2.2.3.txt
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@ -9,4 +9,6 @@ Django 2.2.3 fixes several bugs in 2.2.2.
Bugfixes
========
* ...
* Fixed a regression in Django 2.2 where :class:`~django.db.models.Avg`,
:class:`~django.db.models.StdDev`, and :class:`~django.db.models.Variance`
crash with ``filter`` argument (:ticket:`30542`).