Edits.

Author: WaVEV

django_mongodb/expressions.py

@@ -114,7 +114,7 @@ def query(self, compiler, connection, lookup_name=None):
             for col, i in subquery_compiler.column_mapping.items()
         },
     }
-    # The result must be a list of values. Se we compress the output with an aggregation pipeline.
+    # The result must be a list of values. The output is compressed with an aggregation pipeline.
     if lookup_name in ("in", "range"):
         subquery.aggregation_pipeline = [
             {

django_mongodb/features.py

@@ -10,6 +10,7 @@ class DatabaseFeatures(BaseDatabaseFeatures):
     greatest_least_ignores_nulls = True
     has_json_object_function = False
     has_native_json_field = True
+    supports_boolean_expr_in_select_clause = True
     supports_collation_on_charfield = False
     supports_column_check_constraints = False
     supports_date_lookup_using_string = False
@@ -34,7 +35,6 @@ class DatabaseFeatures(BaseDatabaseFeatures):
     supports_transactions = False
     supports_unspecified_pk = True
     uses_savepoints = False
-    supports_boolean_expr_in_select_clause = True
 
     _django_test_expected_failures = {
         # 'NulledTransform' object has no attribute 'as_mql'.
@@ -92,14 +92,13 @@ class DatabaseFeatures(BaseDatabaseFeatures):
         "schema.tests.SchemaTests.test_composed_constraint_with_fk",
         "schema.tests.SchemaTests.test_remove_ignored_unique_constraint_not_create_fk_index",
         "schema.tests.SchemaTests.test_unique_constraint",
-        # subclasses of BaseDatabaseIntrospection may require a get_constraints() method
-        "migrations.test_operations.OperationTests.test_add_func_unique_constraint",
-        "migrations.test_operations.OperationTests.test_remove_func_unique_constraint",
         # Delete does not support subqueries.
         "delete_regress.tests.DeleteTests.test_self_reference_with_through_m2m_at_second_level",
         # Handle column default value.
+        # https://github.com/mongodb-labs/django-mongodb/issues/155
         "annotations.tests.NonAggregateAnnotationTestCase.test_empty_queryset_annotation",
         # Union as subquery is not mapping the parent parameter and collections.
+        # https://github.com/mongodb-labs/django-mongodb/issues/156
         "queries.test_qs_combinators.QuerySetSetOperationTests.test_union_in_subquery_related_outerref",
         "queries.test_qs_combinators.QuerySetSetOperationTests.test_union_in_subquery",
     }
@@ -381,7 +380,6 @@ def django_test_expected_failures(self):
             "aggregation.tests.AggregateAnnotationPruningTests.test_unused_aliased_aggregate_pruned",
             "aggregation.tests.AggregateAnnotationPruningTests.test_referenced_aggregate_annotation_kept",
             "aggregation.tests.AggregateTestCase.test_count_star",
-            "aggregation.test_filter_argument.FilteredAggregateTests.test_filtered_aggregate_ref_subquery_annotation",
             "aggregation.tests.AggregateAnnotationPruningTests.test_referenced_composed_subquery_requires_wrapping",
             "aggregation.tests.AggregateAnnotationPruningTests.test_referenced_subquery_requires_wrapping",
             "aggregation.tests.AggregateTestCase.test_aggregation_subquery_annotation",