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Code Issues 32 Releases Wiki Activity

Fixed #29195 -- Fixed Exists.output_field resolution on single-valued queries.

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The Subquery class which Exists inherits from defaulted to using single-valued
querie's field if no output_field was explicitly specified on initialization
which was bypassing the Exists.output_field defined at the class level.

Moving Subquery's dynamic output_field resolution to _resolve_output_field
should make sure the fallback logic is only performed if required.

Regression in 08654a99bb.

Thanks Oli Warner for the detailed report.
This commit is contained in:
Simon Charette
2018-03-08 02:06:19 -05:00
committed by Tim Graham
parent fd9398816e
commit 277ed07209
3 changed files with 11 additions and 3 deletions
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3
docs/releases/2.0.4.txt
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@@ -9,4 +9,5 @@ Django 2.0.4 fixes several bugs in 2.0.3.
Bugfixes
========
* ...
* Fixed a crash when filtering with an ``Exists()`` annotation of a queryset
containing a single field (:ticket:`29195`).