def test_nested_col(self):

        self.assertRaises(TypeError, self.table.where, 'c_nested')
Always returns EmptyQuerySet.
dataset/ETHPy150Open PyTables/PyTables/tables/tests/test_queries.py/ScalarTableUsageTestCase.test_nested_col--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.5/django/db/models/query.py/EmptyQuerySet.all