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Merge pull request #1113 from matrix-org/erikj/remove_auth
Remove redundant event_auth index
This commit is contained in:
commit
927a67ee1a
3 changed files with 82 additions and 2 deletions
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@ -603,7 +603,6 @@ class EventsStore(SQLBaseStore):
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"rejections",
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"redactions",
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"room_memberships",
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"state_events",
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"topics"
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):
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txn.executemany(
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@ -25,7 +25,7 @@ logger = logging.getLogger(__name__)
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# Remember to update this number every time a change is made to database
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# schema files, so the users will be informed on server restarts.
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SCHEMA_VERSION = 36
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SCHEMA_VERSION = 37
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dir_path = os.path.abspath(os.path.dirname(__file__))
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81
synapse/storage/schema/delta/37/remove_auth_idx.py
Normal file
81
synapse/storage/schema/delta/37/remove_auth_idx.py
Normal file
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@ -0,0 +1,81 @@
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# Copyright 2016 OpenMarket 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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from synapse.storage.prepare_database import get_statements
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from synapse.storage.engines import PostgresEngine
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import logging
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logger = logging.getLogger(__name__)
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DROP_INDICES = """
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-- We only ever query based on event_id
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DROP INDEX IF EXISTS state_events_room_id;
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DROP INDEX IF EXISTS state_events_type;
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DROP INDEX IF EXISTS state_events_state_key;
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-- room_id is indexed elsewhere
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DROP INDEX IF EXISTS current_state_events_room_id;
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DROP INDEX IF EXISTS current_state_events_state_key;
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DROP INDEX IF EXISTS current_state_events_type;
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DROP INDEX IF EXISTS transactions_have_ref;
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-- (topological_ordering, stream_ordering, room_id) seems like a strange index,
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-- and is used incredibly rarely.
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DROP INDEX IF EXISTS events_order_topo_stream_room;
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DROP INDEX IF EXISTS event_search_ev_idx;
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"""
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POSTGRES_DROP_CONSTRAINT = """
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ALTER TABLE event_auth DROP CONSTRAINT IF EXISTS event_auth_event_id_auth_id_room_id_key;
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"""
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SQLITE_DROP_CONSTRAINT = """
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DROP INDEX IF EXISTS evauth_edges_id;
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CREATE TABLE IF NOT EXISTS event_auth_new(
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event_id TEXT NOT NULL,
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auth_id TEXT NOT NULL,
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room_id TEXT NOT NULL
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);
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INSERT INTO event_auth_new
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SELECT event_id, auth_id, room_id
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FROM event_auth;
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DROP TABLE event_auth;
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ALTER TABLE event_auth_new RENAME TO event_auth;
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CREATE INDEX evauth_edges_id ON event_auth(event_id);
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"""
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def run_create(cur, database_engine, *args, **kwargs):
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for statement in get_statements(DROP_INDICES.splitlines()):
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cur.execute(statement)
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if isinstance(database_engine, PostgresEngine):
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drop_constraint = POSTGRES_DROP_CONSTRAINT
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else:
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drop_constraint = SQLITE_DROP_CONSTRAINT
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for statement in get_statements(drop_constraint.splitlines()):
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cur.execute(statement)
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def run_upgrade(cur, database_engine, *args, **kwargs):
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pass
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