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synapse/synapse/storage/schema/main/delta/73/04pending_device_list_updates.sql
Erik Johnston 4b17a5ace8
Handle remote device list updates during partial join (#13913)
c.f. #12993 (comment), point 3

This stores all device list updates that we receive while partial joins are ongoing, and processes them once we have the full state.

Note: We don't actually process the device lists in the same ways as if we weren't partially joined. Instead of updating the device list remote cache, we simply notify local users that a change in the remote user's devices has happened. I think this is safe as if the local user requests the keys for the remote user and we don't have them we'll simply fetch them as normal.
2022-09-28 13:42:43 +00:00

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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.
*/
-- Stores remote device lists we have received for remote users while a partial
-- join is in progress.
--
-- This allows us to replay any device list updates if it turns out the remote
-- user was in the partially joined room
CREATE TABLE device_lists_remote_pending(
stream_id BIGINT PRIMARY KEY,
user_id TEXT NOT NULL,
device_id TEXT NOT NULL
);
-- We only keep the most recent update for a given user/device pair.
CREATE UNIQUE INDEX device_lists_remote_pending_user_device_id ON device_lists_remote_pending(user_id, device_id);