**** CubicPower OpenStack Study ****
def upgrade(migrate_engine):
meta = MetaData(migrate_engine)
meta.reflect(migrate_engine)
table_names = ['compute_node_stats', 'compute_nodes', 'instance_actions',
'instance_actions_events', 'instance_faults', 'migrations']
for table_name in table_names:
table = Table('dump_' + table_name, meta)
table.drop(checkfirst=True)
**** CubicPower OpenStack Study ****
def downgrade(migrate_engine):
pass
