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author | Dražen Odobašić <dodobas@quaternion.co> | 2017-11-19 10:13:10 -0500 |
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committer | Tim Graham <timograham@gmail.com> | 2017-11-21 10:33:56 -0500 |
commit | d97f026a7ab5212192426e45121f7a52751a2044 (patch) | |
tree | 23960995e1dbb482cb962f378bcc19a28b688daa /tests/backends/postgresql | |
parent | 6cb6382639cbd29c8348b42c4d43b02c950eff3a (diff) | |
download | django-d97f026a7ab5212192426e45121f7a52751a2044.tar.gz |
Fixed #28817 -- Made QuerySet.iterator() use server-side cursors after values() and values_list().
Diffstat (limited to 'tests/backends/postgresql')
-rw-r--r-- | tests/backends/postgresql/test_server_side_cursors.py | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/tests/backends/postgresql/test_server_side_cursors.py b/tests/backends/postgresql/test_server_side_cursors.py index 53d5afce90..ff06318e6c 100644 --- a/tests/backends/postgresql/test_server_side_cursors.py +++ b/tests/backends/postgresql/test_server_side_cursors.py @@ -3,7 +3,7 @@ import unittest from collections import namedtuple from contextlib import contextmanager -from django.db import connection +from django.db import connection, models from django.test import TestCase from ..models import Person @@ -53,6 +53,19 @@ class ServerSideCursorsPostgres(TestCase): def test_server_side_cursor(self): self.assertUsesCursor(Person.objects.iterator()) + def test_values(self): + self.assertUsesCursor(Person.objects.values('first_name').iterator()) + + def test_values_list(self): + self.assertUsesCursor(Person.objects.values_list('first_name').iterator()) + + def test_values_list_flat(self): + self.assertUsesCursor(Person.objects.values_list('first_name', flat=True).iterator()) + + def test_values_list_fields_not_equal_to_names(self): + expr = models.Count('id') + self.assertUsesCursor(Person.objects.annotate(id__count=expr).values_list(expr, 'id__count').iterator()) + def test_server_side_cursor_many_cursors(self): persons = Person.objects.iterator() persons2 = Person.objects.iterator() |