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| -rw-r--r-- | nova/db/sqlalchemy/migrate_repo/versions/103_instance_indexes.py | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/nova/db/sqlalchemy/migrate_repo/versions/103_instance_indexes.py b/nova/db/sqlalchemy/migrate_repo/versions/103_instance_indexes.py new file mode 100644 index 000000000..0eeac2587 --- /dev/null +++ b/nova/db/sqlalchemy/migrate_repo/versions/103_instance_indexes.py @@ -0,0 +1,43 @@ +# vim: tabstop=4 shiftwidth=4 softtabstop=4 + +# Copyright 2011 OpenStack LLC. +# Copyright 2012 Michael Still and Canonical Inc +# All Rights Reserved. +# +# 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 Index, MetaData, Table + + +def upgrade(migrate_engine): + meta = MetaData() + meta.bind = migrate_engine + + for table in ['block_device_mapping', + 'consoles', + 'volumes']: + t = Table(table, meta, autoload=True) + i = Index('%s_instance_uuid_idx' % table, t.c.instance_uuid) + i.create(migrate_engine) + + +def downgrade(migrate_engine): + meta = MetaData() + meta.bind = migrate_engine + + for table in ['block_device_mapping', + 'consoles', + 'volumes']: + t = Table(table, meta, autoload=True) + i = Index('%s_instance_uuid_idx' % table, t.c.instance_uuid) + i.drop(migrate_engine) |