diff options
| -rw-r--r-- | changelog.d/15739.bugfix | 1 | ||||
| -rw-r--r-- | synapse/storage/schema/main/delta/77/05thread_notifications_backfill.sql | 16 |
2 files changed, 15 insertions, 2 deletions
diff --git a/changelog.d/15739.bugfix b/changelog.d/15739.bugfix new file mode 100644 index 0000000000..7129ab0782 --- /dev/null +++ b/changelog.d/15739.bugfix @@ -0,0 +1 @@ +Fix bug in schema delta that broke upgrades for some deployments. Introduced in v1.85.0. diff --git a/synapse/storage/schema/main/delta/77/05thread_notifications_backfill.sql b/synapse/storage/schema/main/delta/77/05thread_notifications_backfill.sql index b09aa817ae..a5da7a17a0 100644 --- a/synapse/storage/schema/main/delta/77/05thread_notifications_backfill.sql +++ b/synapse/storage/schema/main/delta/77/05thread_notifications_backfill.sql @@ -23,13 +23,25 @@ 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 +-- `NULL` and `main` thread ID, which causes the insert 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; +-- Copy the NULL threads to have a 'main' thread ID. +-- +-- Note: Some people seem to have duplicate rows with a `NULL` thread ID, in +-- which case we just fudge it with using MAX of the values. The counts *may* be +-- wrong for such rooms, but a) its an edge case, and b) they'll be fixed when +-- the user reads the room. +INSERT INTO event_push_summary (user_id, room_id, notif_count, stream_ordering, unread_count, last_receipt_stream_ordering, thread_id) + SELECT user_id, room_id, MAX(notif_count), MAX(stream_ordering), MAX(unread_count), MAX(last_receipt_stream_ordering), 'main' + FROM event_push_summary + WHERE thread_id IS NULL + GROUP BY user_id, room_id, thread_id; + +DELETE FROM event_push_summary AS a 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'; |