#31415: Nested OuterRefs produce error when used as argument to Left
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Reporter: Ben Nace | Owner: nobody
Type: Uncategorized | Status: new
Component: Database layer | Version: 3.0
(models, ORM) |
Severity: Normal | Resolution:
Keywords: | Triage Stage:
| 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 Ben Nace):
Replying to [comment:1 Simon Charette]:
> Pretty sure this is a duplicate of #29214 (see
[https://code.djangoproject.com/ticket/29214#comment:12 comment:12]). Just
like `F` the `OuterRef` expression doesn't support `__` join references,
the fact `Left` and nested `OuterRef` are used here are unrelated I
believe.
#29214 [https://code.djangoproject.com/ticket/29214#comment:12 comment:12]
refers to joins inside F in UPDATE queries, not in general. The
[https://docs.djangoproject.com/en/3.0/topics/db/queries/#using-f
-expressions-in-filters documentation] states
You can also use the double underscore notation to span relationships in
an F() object. An F() object with a double underscore will introduce any
joins needed to access the related object.
--
Ticket URL: <https://code.djangoproject.com/ticket/31415#comment:3>
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