def METHOD_NAME(operations_factory):
    m1 = MetaData()
    unionpeer_topic_table_0 = Table('unionpeerorg_topics', m1,
                                    Column("id", Integer, ForeignKey('topics.id'), primary_key=True),
                                    Column("hash", String, nullable=False))
    m2 = MetaData()
    unionpeer_topic_table_1 = Table('unionpeerorg_topics1', m2,
                                    Column("id", Integer, ForeignKey('topics.id'), primary_key=True),
                                    Column("hash", String, nullable=True))
    with operations_factory() as operations:
        operations.create_table(unionpeer_topic_table_1)
        topics = operations.db.query(unionpeer_topic_table_0)
        for topic in topics:
            raw_topic = row2dict(topic, unionpeer_topic_table_0)
            operations.db.execute(unionpeer_topic_table_1.insert(), raw_topic)
        operations.drop_table(unionpeer_topic_table_0)
        operations.rename_table(unionpeer_topic_table_1.name, unionpeer_topic_table_0.name)