forked-synapse/synapse/storage/schema/main/delta/68/04partial_state_rooms.sql
Richard van der Hoff e2e1d90a5e
Faster joins: persist to database (#12012)
When we get a partial_state response from send_join, store information in the
database about it:
 * store a record about the room as a whole having partial state, and stash the
   list of member servers too.
 * flag the join event itself as having partial state
 * also, for any new events whose prev-events are partial-stated, note that
   they will *also* be partial-stated.

We don't yet make any attempt to interpret this data, so API calls (and a bunch
of other things) are just going to get incorrect data.
2022-03-01 12:49:54 +00:00

42 lines
1.5 KiB
SQL

/* Copyright 2022 The Matrix.org Foundation C.I.C
*
* 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.
*/
-- rooms which we have done a partial-state-style join to
CREATE TABLE IF NOT EXISTS partial_state_rooms (
room_id TEXT PRIMARY KEY,
FOREIGN KEY(room_id) REFERENCES rooms(room_id)
);
-- a list of remote servers we believe are in the room
CREATE TABLE IF NOT EXISTS partial_state_rooms_servers (
room_id TEXT NOT NULL REFERENCES partial_state_rooms(room_id),
server_name TEXT NOT NULL,
UNIQUE(room_id, server_name)
);
-- a list of events with partial state. We can't store this in the `events` table
-- itself, because `events` is meant to be append-only.
CREATE TABLE IF NOT EXISTS partial_state_events (
-- the room_id is denormalised for efficient indexing (the canonical source is `events`)
room_id TEXT NOT NULL REFERENCES partial_state_rooms(room_id),
event_id TEXT NOT NULL REFERENCES events(event_id),
UNIQUE(event_id)
);
CREATE INDEX IF NOT EXISTS partial_state_events_room_id_idx
ON partial_state_events (room_id);