Add state_group index to event_to_state_groups

This is needed to efficiently check for unreferenced state groups during
purge.
This commit is contained in:
Erik Johnston 2018-10-04 15:24:01 +01:00
parent 17d585753f
commit 4917ff5523
3 changed files with 27 additions and 1 deletions

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@ -25,7 +25,7 @@ logger = logging.getLogger(__name__)
# Remember to update this number every time a change is made to database
# schema files, so the users will be informed on server restarts.
SCHEMA_VERSION = 51
SCHEMA_VERSION = 52
dir_path = os.path.abspath(os.path.dirname(__file__))

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@ -0,0 +1,19 @@
/* Copyright 2018 New Vector Ltd
*
* 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.
*/
-- This is needed to efficiently check for unreferenced state groups during
-- purge. Added events_to_state_group(state_group) index
INSERT into background_updates (update_name, progress_json)
VALUES ('event_to_state_groups_sg_index', '{}');

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@ -1114,6 +1114,7 @@ class StateStore(StateGroupWorkerStore, BackgroundUpdateStore):
STATE_GROUP_DEDUPLICATION_UPDATE_NAME = "state_group_state_deduplication"
STATE_GROUP_INDEX_UPDATE_NAME = "state_group_state_type_index"
CURRENT_STATE_INDEX_UPDATE_NAME = "current_state_members_idx"
EVENT_STATE_GROUP_INDEX_UPDATE_NAME = "event_to_state_groups_sg_index"
def __init__(self, db_conn, hs):
super(StateStore, self).__init__(db_conn, hs)
@ -1132,6 +1133,12 @@ class StateStore(StateGroupWorkerStore, BackgroundUpdateStore):
columns=["state_key"],
where_clause="type='m.room.member'",
)
self.register_background_index_update(
self.EVENT_STATE_GROUP_INDEX_UPDATE_NAME,
index_name="event_to_state_groups_sg_index",
table="event_to_state_groups",
columns=["state_group"],
)
def _store_event_state_mappings_txn(self, txn, events_and_contexts):
state_groups = {}