forked-synapse/synapse/storage/schema/main/delta/72/06thread_notifications.sql
Patrick Cloke 666ae87729
Update event push action and receipt tables to support threads. (#13753)
Adds a `thread_id` column to the `event_push_actions`, `event_push_actions_staging`,
and `event_push_summary` tables. This will notifications to be segmented by the thread
in a future pull request. The `thread_id` column stores the root event ID or the special
value `"main"`.

The `thread_id` column for `event_push_actions` and `event_push_summary` is
backfilled with `"main"` for all existing rows. New entries into `event_push_actions`
and `event_push_actions_staging` will get the proper thread ID.

`receipts_linearized` and `receipts_graph` also gain a `thread_id` column, which is similar,
except `NULL` is a special value meaning the receipt is "unthreaded".

See MSC3771 and MSC3773 for where this data will be useful.
2022-09-14 17:11:16 +00:00

31 lines
1.3 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.
*/
-- Add a nullable column for thread ID to the event push actions tables; this
-- will be filled in with a default value for any previously existing rows.
--
-- After migration this can be made non-nullable.
ALTER TABLE event_push_actions_staging ADD COLUMN thread_id TEXT;
ALTER TABLE event_push_actions ADD COLUMN thread_id TEXT;
ALTER TABLE event_push_summary ADD COLUMN thread_id TEXT;
-- Update the unique index for `event_push_summary`.
INSERT INTO background_updates (ordering, update_name, progress_json) VALUES
(7006, 'event_push_summary_unique_index2', '{}');
INSERT INTO background_updates (ordering, update_name, progress_json, depends_on) VALUES
(7006, 'event_push_backfill_thread_id', '{}', 'event_push_summary_unique_index2');