Add an index to event_search

- to make the purge API quicker
This commit is contained in:
Richard van der Hoff 2017-05-11 11:57:02 +01:00
parent 29ded770b1
commit baafb85ba4
3 changed files with 35 additions and 3 deletions

View File

@ -210,7 +210,8 @@ class BackgroundUpdateStore(SQLBaseStore):
self._background_update_handlers[update_name] = update_handler
def register_background_index_update(self, update_name, index_name,
table, columns, where_clause=None):
table, columns, where_clause=None,
unique=False):
"""Helper for store classes to do a background index addition
To use:
@ -245,9 +246,11 @@ class BackgroundUpdateStore(SQLBaseStore):
c.execute(sql)
sql = (
"CREATE INDEX CONCURRENTLY %(name)s ON %(table)s"
"CREATE %(unique)s INDEX CONCURRENTLY %(name)s"
" ON %(table)s"
" (%(columns)s) %(where_clause)s"
) % {
"unique": "UNIQUE" if unique else "",
"name": index_name,
"table": table,
"columns": ", ".join(columns),
@ -270,9 +273,10 @@ class BackgroundUpdateStore(SQLBaseStore):
# down at the wrong moment - hance we use IF NOT EXISTS. (SQLite
# has supported CREATE TABLE|INDEX IF NOT EXISTS since 3.3.0.)
sql = (
"CREATE INDEX IF NOT EXISTS %(name)s ON %(table)s"
"CREATE %(unique)s INDEX IF NOT EXISTS %(name)s ON %(table)s"
" (%(columns)s)"
) % {
"unique": "UNIQUE" if unique else "",
"name": index_name,
"table": table,
"columns": ", ".join(columns),

View File

@ -207,6 +207,17 @@ class EventsStore(SQLBaseStore):
where_clause="contains_url = true AND outlier = false",
)
# an event_id index on event_search is useful for the purge_history
# api. Plus it means we get to enforce some integrity with a UNIQUE
# clause
self.register_background_index_update(
"event_search_event_id_idx",
index_name="event_search_event_id_idx",
table="event_search",
columns=["event_id"],
unique=True,
)
self._event_persist_queue = _EventPeristenceQueue()
def persist_events(self, events_and_contexts, backfilled=False):

View File

@ -0,0 +1,17 @@
/* Copyright 2017 Vector Creations 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.
*/
INSERT into background_updates (update_name, progress_json)
VALUES ('event_search_event_id_idx', '{}');