3042244d8e87_.py 文件源码

def downgrade():
    # ### commands auto generated by Alembic - please adjust! ###
    op.add_column(u'nuccore', sa.Column('dataset_id', mysql.INTEGER(display_width=11), autoincrement=False, nullable=True))
    op.create_foreign_key(u'nuccore_ibfk_1', 'nuccore', 'dataset', ['dataset_id'], ['id'])
    op.drop_table('dataset_to_nuccore')
    # ### end Alembic commands ###