add index to fixed_ips

add index to fixed_ips(deleted, allocated) columns

blueprint db-cleanup

Change-Id: I6013bb5d5207fc904d5a8a10716c4e8588ea9e91

1 files changed, 46 insertions, 0 deletions

diff --git a/nova/db/sqlalchemy/migrate_repo/versions/139_add_indexes_to_fixed_ips.py b/nova/db/sqlalchemy/migrate_repo/versions/139_add_indexes_to_fixed_ips.py
new file mode 100644
index 000000000..8a471c057
--- /dev/null
+++ b/nova/db/sqlalchemy/migrate_repo/versions/139_add_indexes_to_fixed_ips.py
@@ -0,0 +1,46 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2012 OpenStack LLC.
+# 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
+from sqlalchemy.exc import IntegrityError
+
+
+def upgrade(migrate_engine):
+    meta = MetaData()
+    meta.bind = migrate_engine
+
+    t = Table('fixed_ips', meta, autoload=True)
+
+    # Based on fixed_ip_delete_associate
+    # from: nova/db/sqlalchemy/api.py
+    i = Index('fixed_ips_deleted_allocated_idx',
+              t.c.address, t.c.deleted, t.c.allocated)
+    try:
+        i.create(migrate_engine)
+    except IntegrityError:
+        pass
+
+
+def downgrade(migrate_engine):
+    meta = MetaData()
+    meta.bind = migrate_engine
+
+    t = Table('fixed_ips', meta, autoload=True)
+
+    i = Index('fixed_ips_deleted_allocated_idx',
+              t.c.address, t.c.deleted, t.c.allocated)
+    i.drop(migrate_engine)