Ticket #7327: 0001-Added-test-and-documentation-for-sub-selects.patch

a/docs/db-api.txt

@@ -1368 +1368 @@
-
-    SELECT ... WHERE id IN (1, 3, 4);
-
+.. note::
+    It is possible to realize sub-selects by using ``in`` lookup.
+
+    Example::
+
+        Entry.objects.filter(
+            blog__in=Blog.objects.filter(name='Cheddar Talk').values('pk').query)
+
+    SQL equivalent::
+
+        SELECT ... WHERE id IN (SELECT id FROM ... WHERE name = 'Cheddar Talk');
+
-startswith
-~~~~~~~~~~
-

a/tests/regressiontests/queries/models.py

@@ -701 +701 @@
->>> mm = ManagedModel.objects.create(data='mm1', tag=t1, is_public=True)
->>> ManagedModel.objects.update(data='mm')
-
+Sub-select using in lookup with Query object.
+>>> Author.objects.filter(extra__in=ExtraInfo.objects.filter(note__misc='foo').values('pk').query)
+[<Author: a1>, <Author: a2>]
+
-"""}
-