#29195: Postgres Regression, annotating Exists through a OuterRef query.
-------------------------------------+-------------------------------------
Reporter: Oli Warner | Owner: Simon
| Charette
Type: Bug | Status: closed
Component: Database layer | Version: 2.0
(models, ORM) |
Severity: Release blocker | Resolution: fixed
Keywords: | Triage Stage: Accepted
Has patch: 1 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------
Comment (by Tim Graham <timograham@…>):
In [changeset:"0fd21febe7b3969460e3e6f17bfedc63529f194b" 0fd21feb]:
{{{
#!CommitTicketReference repository=""
revision="0fd21febe7b3969460e3e6f17bfedc63529f194b"
[2.0.x] Fixed #29195 -- Fixed Exists.output_field resolution on single-
valued queries.
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 08654a99bbdd09049d682ae57cc94241534b29f0.
Thanks Oli Warner for the detailed report.
Backport of 277ed072094ad87fc6b2c4669f21d43b1f39043c from master
}}}
--
Ticket URL: <https://code.djangoproject.com/ticket/29195#comment:8>
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