#373: Add support for multi-column primary keys.
-------------------------------------+-------------------------------------
Reporter: Jacob | Owner: Csirmaz
| Bendegúz
Type: New feature | Status: closed
Component: Database layer | Version: dev
(models, ORM) |
Severity: Normal | Resolution: fixed
Keywords: database | Triage Stage: Ready for
| checkin
Has patch: 1 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Comment (by nessita <124304+nessita@…>):
In [changeset:"192bc7a7be92e20cc250907fb4083df689715679" 192bc7a7]:
{{{#!CommitTicketReference repository=""
revision="192bc7a7be92e20cc250907fb4083df689715679"
Fixed #36464 -- Fixed "__in" tuple lookup on backends lacking native
support.
When native support for tuple lookups is missing in a DB backend, it can
be emulated with an EXISTS clause. This is controlled by the backend
feature flag "supports_tuple_lookups".
The mishandling of subquery right-hand side in `TupleIn` (added to
support `CompositePrimaryKey` in Refs #373) was likely missed because
the only core backend we test with the feature flag disabled
(Oracle < 23.4) supports it natively.
Thanks to Nandana Raol for the report, and to Sarah Boyce, Jacob Walls,
and Natalia Bidart for reviews.
}}}
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Ticket URL: <https://code.djangoproject.com/ticket/373#comment:229>
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