'Test to ensure that cluster keys are not included when removing only static columns
@since 3.6
@jira_ticket PYTHON-608
@expected_result Server should not throw an exception, and the static column should be deleted
@test_category object_mapper'

def test_static_deletion(self):

    StaticDeleteModel.create(example_id=5, example_clust=5, example_static2=1)
    sdm = StaticDeleteModel.filter(example_id=5).first()
    self.assertEqual(1, sdm.example_static2)
    sdm.update(example_static2=None)
    self.assertIsNone(sdm.example_static2)
