@cached_property
    def supports_stddev(self):
        class StdDevPop(object):
            sql_function = 'STDDEV_POP'

        try:
            self.connection.ops.check_aggregate_support(StdDevPop())
            return True
        except NotImplementedError:
            return False
Return a joined list
dataset/ETHPy150Open cloudera/hue/desktop/core/ext-py/Django-1.6.10/django/db/backends/__init__.py/BaseDatabaseFeatures.supports_stddev--crossover with--dataset/ETHPy150Open saltstack/salt/salt/states/git.py/_format_comments