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authorSimon Charette <charette.s@gmail.com>2021-04-20 22:25:52 -0400
committerMariusz Felisiak <felisiak.mariusz@gmail.com>2021-04-21 10:32:39 +0200
commit48e19bae49f271cccbb8a8f4549c9366b7cecac6 (patch)
treecc52844e77b7884251c60071933b86751249035a /django/db/models/sql
parent1cc2eaf02d2aa64f7ca4ef52f3d9f13381540007 (diff)
[3.2.x] Fixed #32650 -- Fixed handling subquery aliasing on queryset combination.
This issue started manifesting itself when nesting a combined subquery relying on exclude() since 8593e162c9cb63a6c0b06daf045bc1c21eb4d7c1 but sql.Query.combine never properly handled subqueries outer refs in the first place, see QuerySetBitwiseOperationTests.test_subquery_aliases() (refs #27149). Thanks Raffaele Salmaso for the report. Backport of 6d0cbe42c3d382e5393d4af48185c546bb0ada1f from main
Diffstat (limited to 'django/db/models/sql')
-rw-r--r--django/db/models/sql/query.py4
1 files changed, 4 insertions, 0 deletions
diff --git a/django/db/models/sql/query.py b/django/db/models/sql/query.py
index 2c6a50934d..73c9e5ca4f 100644
--- a/django/db/models/sql/query.py
+++ b/django/db/models/sql/query.py
@@ -634,6 +634,10 @@ class Query(BaseExpression):
joinpromoter.add_votes(rhs_votes)
joinpromoter.update_join_types(self)
+ # Combine subqueries aliases to ensure aliases relabelling properly
+ # handle subqueries when combining where and select clauses.
+ self.subq_aliases |= rhs.subq_aliases
+
# Now relabel a copy of the rhs where-clause and add it to the current
# one.
w = rhs.where.clone()