Make purge history slightly faster

Don't pull out events that are outliers and won't be deleted, as nothing
should happen to them.
This commit is contained in:
Erik Johnston 2018-09-13 12:48:10 +01:00
parent f30a303590
commit c857f5ef9b

View file

@ -1930,15 +1930,22 @@ class EventsStore(EventFederationStore, EventsWorkerStore, BackgroundUpdateStore
should_delete_params = ()
if not delete_local_events:
should_delete_expr += " AND event_id NOT LIKE ?"
should_delete_params += ("%:" + self.hs.hostname, )
should_delete_params += (
"%:" + self.hs.hostname,
"%:" + self.hs.hostname,
)
should_delete_params += (room_id, token.topological)
# Note that we insert events that are outliers and aren't going to be
# deleted, as nothing will happen to them.
txn.execute(
"INSERT INTO events_to_purge"
" SELECT event_id, %s"
" FROM events AS e LEFT JOIN state_events USING (event_id)"
" WHERE e.room_id = ? AND topological_ordering < ?" % (
" WHERE (NOT outlier OR (%s)) AND e.room_id = ? AND topological_ordering < ?"
% (
should_delete_expr,
should_delete_expr,
),
should_delete_params,