Fixed #32858 -- Fixed ExclusionConstraint crash with index transforms in expressions.

1 files changed, 16 insertions, 1 deletions

diff --git a/tests/postgres_tests/test_constraints.py b/tests/postgres_tests/test_constraints.py
index 7915bb226e..65402bd429 100644
--- a/tests/postgres_tests/test_constraints.py
+++ b/tests/postgres_tests/test_constraints.py
@@ -14,7 +14,9 @@ from django.test import modify_settings, skipUnlessDBFeature
 from django.utils import timezone
 
 from . import PostgreSQLTestCase
-from .models import HotelReservation, RangesModel, Room, Scene
+from .models import (
+    HotelReservation, IntegerArrayModel, RangesModel, Room, Scene,
+)
 
 try:
     from psycopg2.extras import DateRange, NumericRange
@@ -670,6 +672,19 @@ class ExclusionConstraintTests(PostgreSQLTestCase):
             self.get_constraints(HotelReservation._meta.db_table),
         )
 
+    def test_index_transform(self):
+        constraint_name = 'first_index_equal'
+        constraint = ExclusionConstraint(
+            name=constraint_name,
+            expressions=[('field__0', RangeOperators.EQUAL)],
+        )
+        with connection.schema_editor() as editor:
+            editor.add_constraint(IntegerArrayModel, constraint)
+        self.assertIn(
+            constraint_name,
+            self.get_constraints(IntegerArrayModel._meta.db_table),
+        )
+
     def test_range_adjacent_initially_deferred(self):
         constraint_name = 'ints_adjacent_deferred'
         self.assertNotIn(constraint_name, self.get_constraints(RangesModel._meta.db_table))