#34366: Migration optimizer does not reduce multiple AlterField
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Reporter: Laurent Tramoy | Owner: nobody
Type: Cleanup/optimization | Status: new
Component: Migrations | 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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Changes (by Simon Charette):
* version: 4.1 => dev
* type: Uncategorized => Cleanup/optimization
* stage: Unreviewed => Accepted
Comment:
Your analysis is correct Laurent, the reduction of multiple `AlterField`
against the same model is simply not implemented today hence why you're
running this behaviour.
Given you're already half way there
[https://docs.djangoproject.com/en/4.1/intro/contributing/#running-
django-s-test-suite-for-the-first-time I would encourage you to submit a
PR] that adds these changes and
[https://github.com/django/django/blob/main/tests/migrations/test_optimizer.py
an optimizer regression test] to cover them if you'd like to see this
issue fixed in future versions of Django.
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Ticket URL: <https://code.djangoproject.com/ticket/34366#comment:1>
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