#22221: Wrong join promotion on ManyToManyField to self with an intermediate
model.
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Reporter: loic84 | Owner: nobody
Type: Bug | Status: new
Component: Database layer | Version: master
(models, ORM) | Resolution:
Severity: Normal | Triage Stage:
Keywords: | Unreviewed
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 akaariai):
I don't see how this is a join promotion issue - why should joins be left
joins in the generated SQL for the test case? Both joined fields are
checked for equality in the WHERE clause. Left joins can't give more
results as the WHERE clause can't match if either T4 or
m2m_through_friendship are NULL.
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Ticket URL: <https://code.djangoproject.com/ticket/22221#comment:2>
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