def test_primary_key_simple(self):

        pkey = self.conn.primary_key(self.SIMPLE_PKEY_TABLE)
        self.assertEqual(pkey, self.EXPECTED_SIMPLE_PKEY)
For nested aggregations, the results come back in the following format:
dataset/ETHPy150Open GeoscienceAustralia/agdc/tests/test_dbcompare.py/TestComparisonWrapper.test_primary_key_simple--crossover with--dataset/ETHPy150Open Yelp/elastalert/elastalert/ruletypes.py/NewTermsRule.flatten_aggregation_hierarchy