#29444: Allow modification of RETURNING values in django.contrib.postgres
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Reporter: Johannes | Owner: (none)
Hoppe |
Type: New | Status: new
feature |
Component: | Version: 2.0
contrib.postgres | Keywords: django, db,
Severity: Normal | returning, default, model, field
Triage Stage: | Has patch: 0
Unreviewed |
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
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Dependency for #27452
The SQL `RETURNING` statement is currently used for inserts of new
objects. Mainly it is responsible to return the primary key in a single
query.
That's great but currently in the postgres database backend this value is
hard coded to only the primary key. I would like to propose to make this
configurable.
There are plenty of uses cases for such a feature ultimately even enabling
database defaults, but I would suggest to keep it very simple for now.
I would suggest to simply allow model fields to specify if they should be
included in the returning statement or not. The default being not (except
PK) to maintain the current behavior.
The implementation as well as the related code lines have been already
discussed here:
https://github.com/django/django/pull/7525#issuecomment-354269077
I highly suggest to keep this a Postgres ONLY feature for now. That way we
can see what sticks and consider extending this functionality into
`django.db` in the future after we have seen how it's being used and
gathered feedback.
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Ticket URL: <https://code.djangoproject.com/ticket/29444>
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