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# 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.
import sqlalchemy
def upgrade(migrate_engine):
# NOTE(viktors): Migration 062 removed FK from `assignment` table, but
# MySQL silently creates indexes on FK constraints, so we should remove
# this index manually.
if migrate_engine.name == 'mysql':
meta = sqlalchemy.MetaData(bind=migrate_engine)
table = sqlalchemy.Table('assignment', meta, autoload=True)
for index in table.indexes:
if [c.name for c in index.columns] == ['role_id']:
index.drop(migrate_engine)
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