#28107: Can't perform annotation on related table when un-managed model is
backed
by a DB view
-------------------------------------+-------------------------------------
Reporter: powderflask | Owner: nobody
Type: Bug | Status: closed
Component: Database layer | Version: master
(models, ORM) |
Severity: Normal | Resolution: fixed
Keywords: QuerySet.extra | Triage Stage: Ready for
| checkin
Has patch: 1 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------
Changes (by Simon Charette <charette.s@…>):
* status: new => closed
* resolution: => fixed
Comment:
In [changeset:"daf2bd3efe53cbfc1c9fd00222b8315708023792" daf2bd3]:
{{{
#!CommitTicketReference repository=""
revision="daf2bd3efe53cbfc1c9fd00222b8315708023792"
Fixed #28107 -- Disabled grouping of selected primary keys for unmanaged
models.
The grouping caused an issue with database views as PostgreSQL's query
planer
isn't smart enough to introspect primary keys through views. Django
doesn't
support database views but documents that unmanaged models should be used
to
query them.
Thanks powderflask for the detailed report and investigation.
}}}
--
Ticket URL: <https://code.djangoproject.com/ticket/28107#comment:15>
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