{'status': 'blocked_before_load', 'required': 70000, 'capacity': 65536, 'overflow': 4464}
{'status': 'pass', 'required': 70000, 'capacity': 1048576, 'overflow': 0}
{'source_rows': 70000, 'accounted_rows': 70000, 'delta': 0, 'status': 'pass'}
{'source_rows': 70000, 'accounted_rows': 65536, 'delta': 4464, 'status': 'fail'}
{'status': 'pass', 'fanout': 1.0}