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Add an index to event_search
- to make the purge API quicker
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@ -210,7 +210,8 @@ class BackgroundUpdateStore(SQLBaseStore):
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self._background_update_handlers[update_name] = update_handler
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def register_background_index_update(self, update_name, index_name,
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table, columns, where_clause=None):
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table, columns, where_clause=None,
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unique=False):
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"""Helper for store classes to do a background index addition
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To use:
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@ -245,9 +246,11 @@ class BackgroundUpdateStore(SQLBaseStore):
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c.execute(sql)
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sql = (
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"CREATE INDEX CONCURRENTLY %(name)s ON %(table)s"
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"CREATE %(unique)s INDEX CONCURRENTLY %(name)s"
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" ON %(table)s"
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" (%(columns)s) %(where_clause)s"
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) % {
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"unique": "UNIQUE" if unique else "",
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"name": index_name,
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"table": table,
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"columns": ", ".join(columns),
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@ -270,9 +273,10 @@ class BackgroundUpdateStore(SQLBaseStore):
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# down at the wrong moment - hance we use IF NOT EXISTS. (SQLite
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# has supported CREATE TABLE|INDEX IF NOT EXISTS since 3.3.0.)
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sql = (
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"CREATE INDEX IF NOT EXISTS %(name)s ON %(table)s"
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"CREATE %(unique)s INDEX IF NOT EXISTS %(name)s ON %(table)s"
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" (%(columns)s)"
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) % {
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"unique": "UNIQUE" if unique else "",
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"name": index_name,
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"table": table,
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"columns": ", ".join(columns),
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@ -207,6 +207,17 @@ class EventsStore(SQLBaseStore):
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where_clause="contains_url = true AND outlier = false",
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)
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# an event_id index on event_search is useful for the purge_history
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# api. Plus it means we get to enforce some integrity with a UNIQUE
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# clause
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self.register_background_index_update(
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"event_search_event_id_idx",
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index_name="event_search_event_id_idx",
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table="event_search",
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columns=["event_id"],
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unique=True,
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)
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self._event_persist_queue = _EventPeristenceQueue()
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def persist_events(self, events_and_contexts, backfilled=False):
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@ -0,0 +1,17 @@
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/* Copyright 2017 Vector Creations Ltd
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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INSERT into background_updates (update_name, progress_json)
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VALUES ('event_search_event_id_idx', '{}');
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