#37115: Title: Add support for Generic Relations / Table-Valued Expressions in
the
ORM
-------------------------------------+-------------------------------------
Reporter: Pravin | Owner: Pravin
Type: New feature | Status: assigned
Component: Database layer | Version: 6.0
(models, ORM) |
Severity: Normal | Resolution:
Keywords: Table Value | Triage Stage:
expressions, Set returning | Unreviewed
functions, SRF, generate_series, |
Postgres, Orm |
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------
Description changed by Pravin:
Old description:
> This ticket proposes the implementation of a generic Relation API within
> the Django ORM to support Table-Valued Expressions (TVEs) and functions
> that return sets of rows.
>
> A generic Relation API will lay the groundwork for cleanly implementing
> several advanced querying features across different databases, including:
>
> - PostgreSQL `generate_series()` (and potential equivalents for other
> backends).
> - Subqueries acting as derived tables directly within the `FROM` clause.
> - Database abstraction for `json_each()` , `JSON_TABLE` and
> `json_array_elements()`.
> - Deprecation of `FilteredRelation`.
>
> References & Context
> Django Forum Discussion: [https://forum.djangoproject.com/t/proposal-add-
> generate-series-support-to-contrib-postgres/21947]
> Django New Features Thread:[https://github.com/django/new-
> features/issues/25]
> Official GSoC 2026 Announcement:
> [https://www.djangoproject.com/weblog/2026/may/05/gsoc-2026-django-
> contributors/]
New description:
This ticket proposes the implementation of a generic Relation API within
the Django ORM to support Table-Valued Expressions (TVEs) and functions
that return sets of rows.
A generic Relation API will lay the groundwork for cleanly implementing
several advanced querying features across different databases, including:
- PostgreSQL `generate_series()` (and potential equivalents for other
backends).
- Subqueries acting as derived tables directly within the `FROM` clause.
- Database abstraction for `json_each()` , `JSON_TABLE` and
`json_array_elements()`.
- Deprecation of `FilteredRelation`.
== References & Context
- Django Forum Discussion: [https://forum.djangoproject.com/t/proposal-
add-generate-series-support-to-contrib-postgres/21947]
- Django New Features Thread:[https://github.com/django/new-
features/issues/25]
- Official GSoC 2026 Announcement:
[https://www.djangoproject.com/weblog/2026/may/05/gsoc-2026-django-
contributors/]
--
--
Ticket URL: <https://code.djangoproject.com/ticket/37115#comment:1>
Django <https://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.
--
You received this message because you are subscribed to the Google Groups
"Django updates" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To view this discussion visit
https://groups.google.com/d/msgid/django-updates/0107019e4da3f50c-5ba35d18-316b-4a75-844c-cabca4cd26c9-000000%40eu-central-1.amazonses.com.
