Ticket #31607: test-31607.diff

tests/expressions/tests.py

@@ -511 +511 @@
             Employee.objects.exclude(company_point_of_contact_set=None).values('pk')
         )
 
+    def test_subquery_eq(self):
+        qs = Employee.objects.annotate(
+            is_ceo=Exists(Company.objects.filter(ceo=OuterRef('pk'))),
+            is_point_of_contact=Exists(
+                Company.objects.filter(point_of_contact=OuterRef('pk')),
+            ),
+            is_ceo_2=Exists(Company.objects.filter(ceo=OuterRef('pk'))),
+        ).filter(is_ceo=True, is_point_of_contact=False, firstname='Joe')
+        self.assertEqual(
+            qs.query.annotations['is_ceo'],
+            qs.query.annotations['is_ceo_2'],
+        )
+        self.assertNotEqual(
+            qs.query.annotations['is_ceo'],
+            qs.query.annotations['is_point_of_contact'],
+        )
+
     def test_in_subquery(self):
         # This is a contrived test (and you really wouldn't write this query),
         # but it is a succinct way to test the __in=Subquery() construct.