From 5ac75fc9a2d80ddf2974d281c381f82515606403 Mon Sep 17 00:00:00 2001 From: Erik Johnston Date: Thu, 30 May 2019 15:26:55 +0100 Subject: [PATCH] Join against events to use its room_id index --- synapse/storage/events_worker.py | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/synapse/storage/events_worker.py b/synapse/storage/events_worker.py index b56c83e460..1782428048 100644 --- a/synapse/storage/events_worker.py +++ b/synapse/storage/events_worker.py @@ -618,7 +618,12 @@ class EventsWorkerStore(SQLBaseStore): """ See get_total_state_event_counts. """ - sql = "SELECT COUNT(*) FROM state_events WHERE room_id=?" + # We join against the events table as that has an index on room_id + sql = """ + SELECT COUNT(*) FROM state_events + INNER JOIN events USING (room_id, event_id) + WHERE room_id=? + """ txn.execute(sql, (room_id,)) row = txn.fetchone() return row[0] if row else 0