#33228: Change BaseDatabaseFeatures.has_case_insensitive_like to False
-------------------------------------+-------------------------------------
Reporter: Tim Graham | Owner: Chinmoy
Type: | Status: assigned
Cleanup/optimization |
Component: Database layer | Version: dev
(models, ORM) |
Severity: Normal | Resolution:
Keywords: | Triage Stage: Accepted
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 1 | UI/UX: 0
-------------------------------------+-------------------------------------
Comment (by Chinmoy):
I was going through the code and after changing the value to `False`, one
of the tests seemed to fail.
{{{
def test_ticket_16731_startswith_lookup(self):
Employee.objects.create(firstname="John", lastname="Doe")
e2 = Employee.objects.create(firstname="Jack", lastname="Jackson")
e3 = Employee.objects.create(firstname="Jack", lastname="jackson")
self.assertSequenceEqual(
Employee.objects.filter(lastname__startswith=F('firstname')),
[e2, e3] if connection.features.has_case_insensitive_like else
[e2]
)
}}}
with the error `AssertionError: Sequences differ: <QuerySet [<Employee:
Jack Jackson>, <Employee: Jack jackson>]> != [<Employee: Jack Jackson>]`.
I don't understand why the query filter returns `<QuerySet [<Employee:
Jack Jackson>, <Employee: Jack jackson>]>` when the default value of
`has_case_insensitive_like` is set to `False`? @Mariusz Felisiak any
suggestion on this?
--
Ticket URL: <https://code.djangoproject.com/ticket/33228#comment:3>
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