#36750: dumpdata's output of m2m values is not deterministic
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Reporter: Jacob Walls | Owner: (none)
Type: Bug | Status: new
Component: Core (Serialization) | Version: dev
Severity: Normal | Resolution:
Keywords: | Triage Stage: Accepted
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Comment (by VIZZARD-X):
Updated patch and opened a new PR after refreshing my fork:
https://github.com/django/django/pull/20308
This version applies database-level primary key ordering for natural-key
many-to-many relations, per the guidance from Jacob and Simon. It avoids
Python-side sorting and only applies DB ordering when:
- natural foreign keys are enabled,
- the related model defines natural_key(), and
- the model has no explicit Meta.ordering.
All serializer tests, including PostgreSQL with --shuffle, now pass
consistently. The change is limited to Python and XML serializers.
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Ticket URL: <https://code.djangoproject.com/ticket/36750#comment:6>
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