forked-synapse/synapse/storage/schema/main/delta/77/05thread_notifications_backfill.sql
Erik Johnston a701c089fa
Fix schema delta error in 1.85 (#15738)
There appears to be a race where you can end up with entries in
`event_push_summary` with both a `NULL` and `main` thread ID.

Fixes #15736

Introduced in #15597
2023-06-07 10:50:32 +01:00

37 lines
1.8 KiB
SQL

/* Copyright 2023 The Matrix.org Foundation C.I.C
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* 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
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* http://www.apache.org/licenses/LICENSE-2.0
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* See the License for the specific language governing permissions and
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-- Force the background updates from 06thread_notifications.sql to run in the
-- foreground as code will now require those to be "done".
DELETE FROM background_updates WHERE update_name = 'event_push_backfill_thread_id';
-- Overwrite any null thread_id values.
UPDATE event_push_actions_staging SET thread_id = 'main' WHERE thread_id IS NULL;
UPDATE event_push_actions SET thread_id = 'main' WHERE thread_id IS NULL;
-- Empirically we can end up with entries in the push summary table with both a
-- `NULL` and `main` thread ID, which causes the update below to fail. We fudge
-- this by deleting any `NULL` rows that have a corresponding `main`.
DELETE FROM event_push_summary AS a WHERE thread_id IS NULL AND EXISTS (
SELECT 1 FROM event_push_summary AS b
WHERE b.thread_id = 'main' AND a.user_id = b.user_id AND a.room_id = b.room_id
);
UPDATE event_push_summary SET thread_id = 'main' WHERE thread_id IS NULL;
-- Drop the background updates to calculate the indexes used to find null thread_ids.
DELETE FROM background_updates WHERE update_name = 'event_push_actions_thread_id_null';
DELETE FROM background_updates WHERE update_name = 'event_push_summary_thread_id_null';