# Copyright 2015 NetEase, Inc.
#
# Author: Zhang Gengyuan <stanzgy@gmail.com>
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from sqlalchemy import MetaData, Index, Table

meta = MetaData()


def upgrade(migrate_engine):
    meta.bind = migrate_engine

    records_table = Table('records', meta, autoload=True)

    name_idx = Index('rec_name_index',
                     records_table.c.name)
    name_idx.drop()


def downgrade(migrate_engine):
    meta.bind = migrate_engine

    records_table = Table('records', meta, autoload=True)

    name_idx = Index('rec_name_index',
                     records_table.c.name)
    name_idx.create()

Remove duplicated index on table 'records' of pDNS backend