diff --git a/django/db/models/sql/query.py b/django/db/models/sql/query.py index abb545eaa4f..d34b9da6012 100644 --- a/django/db/models/sql/query.py +++ b/django/db/models/sql/query.py @@ -2210,8 +2210,10 @@ class Query(BaseExpression): field_names.append(f) self.set_extra_mask(extra_names) self.set_annotation_mask(annotation_names) + selected = frozenset(field_names + extra_names + annotation_names) else: field_names = [f.attname for f in self.model._meta.concrete_fields] + selected = frozenset(field_names) # Selected annotations must be known before setting the GROUP BY # clause. if self.group_by is True: @@ -2225,7 +2227,7 @@ class Query(BaseExpression): # the selected fields anymore. group_by = [] for expr in self.group_by: - if isinstance(expr, Ref) and expr.refs not in field_names: + if isinstance(expr, Ref) and expr.refs not in selected: expr = self.annotations[expr.refs] group_by.append(expr) self.group_by = tuple(group_by) diff --git a/docs/releases/3.0.11.txt b/docs/releases/3.0.11.txt index a5009feb511..1dcf37a5178 100644 --- a/docs/releases/3.0.11.txt +++ b/docs/releases/3.0.11.txt @@ -4,4 +4,11 @@ Django 3.0.11 release notes *Expected November 2, 2020* -Django 3.0.11 adds compatibility with Python 3.9. +Django 3.0.11 fixes a regression in 3.0.7 and adds compatibility with Python +3.9. + +Bugfixes +======== + +* Fixed a regression in Django 3.0.7 that didn't use ``Subquery()`` aliases in + the ``GROUP BY`` clause (:ticket:`32152`). diff --git a/docs/releases/3.1.3.txt b/docs/releases/3.1.3.txt index ce6cf962c72..6e13da1e785 100644 --- a/docs/releases/3.1.3.txt +++ b/docs/releases/3.1.3.txt @@ -57,3 +57,6 @@ Bugfixes * Fixed a regression in Django 3.1 that caused incorrect textarea layout on medium-sized screens in the admin change form view with the sidebar open (:ticket:`32127`). + +* Fixed a regression in Django 3.0.7 that didn't use ``Subquery()`` aliases in + the ``GROUP BY`` clause (:ticket:`32152`). diff --git a/tests/annotations/tests.py b/tests/annotations/tests.py index 883c2c0ce0b..5bd7d572df5 100644 --- a/tests/annotations/tests.py +++ b/tests/annotations/tests.py @@ -9,7 +9,7 @@ from django.db.models import ( Subquery, Sum, Value, When, ) from django.db.models.expressions import RawSQL -from django.db.models.functions import Coalesce, Length, Lower +from django.db.models.functions import Coalesce, ExtractYear, Length, Lower from django.test import TestCase, skipUnlessDBFeature from .models import ( @@ -658,6 +658,25 @@ class NonAggregateAnnotationTestCase(TestCase): datetime.date(2008, 11, 3), ]) + @skipUnlessDBFeature('supports_subqueries_in_group_by') + def test_annotation_subquery_and_aggregate_values_chaining(self): + qs = Book.objects.annotate( + pub_year=ExtractYear('pubdate') + ).values('pub_year').annotate( + top_rating=Subquery( + Book.objects.filter( + pubdate__year=OuterRef('pub_year') + ).order_by('-rating').values('rating')[:1] + ), + total_pages=Sum('pages'), + ).values('pub_year', 'total_pages', 'top_rating') + self.assertCountEqual(qs, [ + {'pub_year': 1991, 'top_rating': 5.0, 'total_pages': 946}, + {'pub_year': 1995, 'top_rating': 4.0, 'total_pages': 1132}, + {'pub_year': 2007, 'top_rating': 4.5, 'total_pages': 447}, + {'pub_year': 2008, 'top_rating': 4.0, 'total_pages': 1178}, + ]) + def test_annotation_aggregate_with_m2o(self): if connection.vendor == 'mysql' and 'ONLY_FULL_GROUP_BY' in connection.sql_mode: self.skipTest(