innov
/
django1
1
0
Fork 0
Code Issues Pull Requests 1 Projects Releases Wiki Activity

Fixed #31916 -- Fixed combined queryset crash when combining with ordered combined querysets.

This commit is contained in:
Hasan Ramezani 2020-09-17 08:26:06 +02:00 committed by GitHub
parent 981a072dd4
commit a046bcadbe
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
django/db/models/sql/compiler.py
View File

@ -359,7 +359,7 @@ class SQLCompiler:
for expr, is_ref in order_by:
resolved = expr.resolve_expression(self.query, allow_joins=True, reuse=None)
if self.query.combinator:
if self.query.combinator and self.select:
src = resolved.get_source_expressions()[0]
expr_src = expr.get_source_expressions()[0]
# Relabel order by columns to raw numbers if this is a combined

3
tests/queries/test_qs_combinators.py
View File

@ -237,12 +237,15 @@ class QuerySetSetOperationTests(TestCase):
def test_unsupported_ordering_slicing_raises_db_error(self):
qs1 = Number.objects.all()
qs2 = Number.objects.all()
qs3 = Number.objects.all()
msg = 'LIMIT/OFFSET not allowed in subqueries of compound statements'
with self.assertRaisesMessage(DatabaseError, msg):
list(qs1.union(qs2[:10]))
msg = 'ORDER BY not allowed in subqueries of compound statements'
with self.assertRaisesMessage(DatabaseError, msg):
list(qs1.order_by('id').union(qs2))
with self.assertRaisesMessage(DatabaseError, msg):
list(qs1.union(qs2).order_by('id').union(qs3))
@skipIfDBFeature('supports_select_intersection')
def test_unsupported_intersection_raises_db_error(self):