def is_concatenated(self):
        return (not self.is_direct())
Ensure that really big values can be used in a filter statement, even
dataset/ETHPy150Open buildingenergy/buildingenergy-platform/seed/models.py/ColumnMapping.is_concatenated--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.2/tests/regressiontests/model_fields/tests.py/DecimalFieldTests.test_lookup_really_big_value