#32636: QuerySet.values()/values_list() crashes on a combined queryset ordered
by
"extra" select.
-------------------------------------+-------------------------------------
Reporter: Mariusz Felisiak | Owner: David
| Wobrock
Type: Bug | Status: assigned
Component: Database layer | Version: 3.2
(models, ORM) |
Severity: Normal | Resolution:
Keywords: queryset combined | Triage Stage: Accepted
union difference intersection |
extra |
Has patch: 1 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 1
Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------
Changes (by David Wobrock):
* needs_better_patch: 0 => 1
Comment:
It would seem that postgres is smarter than others in this case.
Even with correctly generated SQL, the suggest test method in the ticket
[https://djangoci.com/job/pull-requests-bionic/database=postgres,label
=bionic-
pr,python=python3.9/11241/testReport/junit/queries.test_qs_combinators/QuerySetSetOperationTests/test_union_multiple_models_with_values_and_order_by_extra_select_different_fields/
description fails] with:
{{{
UNION types integer and character varying cannot be matched
}}}
since 'name' and 'greatest_fan_id' do not have a matching type.
--
Ticket URL: <https://code.djangoproject.com/ticket/32636#comment:3>
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