#28621: WHERE NOT EXISTS (... ~ ...) without extra() ?
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Reporter: Дилян Палаузов | Owner: nobody
Type: Uncategorized | Status: new
Component: Uncategorized | Version: 1.11
Severity: Normal | Keywords: QuerySet.extra
Triage Stage: Unreviewed | Has patch: 0
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
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{{{
class A(models.Model):
tag = models.CharField()
class B(models.Model):
pattern = models.CharField()
}}}
A single query that retrieves all A.tag, not matching B.pattern:
{{{
SELECT a.tag FROM app_a as a WHERE NOT EXISTS (SELECT 1 FROM app_b as b
WHERE a.tag ~ b.pattern);
}}}
Is it possibe to write a queryset for this, without .extra and .raw?
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Ticket URL: <https://code.djangoproject.com/ticket/28621>
Django <https://code.djangoproject.com/>
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