#34450: Lookup expressions across foreign keys introduce extra joins
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Reporter: Roman Odaisky | Owner: nobody
Type: Bug | Status: new
Component: Database layer | Version: 4.1
(models, ORM) |
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 Simon Charette):
`QuerySet.filter` results in a single `Query.add_q` so I'm not sure that
comparing the effect of two distinct `add_q` call should be the area of
focus here as the latter is more alike to `filter()` chaining calls (e.g.
`QuerySet.filter().filter()`) which has different semantic when dealing
with multi-valued relationships.
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Ticket URL: <https://code.djangoproject.com/ticket/34450#comment:3>
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