diff options
Diffstat (limited to 'synapse/storage/events.py')
| -rw-r--r-- | synapse/storage/events.py | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/synapse/storage/events.py b/synapse/storage/events.py index 21487724ed..0307b2af3c 100644 --- a/synapse/storage/events.py +++ b/synapse/storage/events.py @@ -1143,6 +1143,12 @@ class EventsStore(SQLBaseStore): current_backfill_id, current_forward_id, limit): """Get all the new events that have arrived at the server either as new events or as backfilled events""" + have_backfill_events = last_backfill_id != current_backfill_id + have_forward_events = last_forward_id != current_forward_id + + if not have_backfill_events and not have_forward_events: + return defer.succeed(AllNewEventsResult([], [], [], [], [])) + def get_all_new_events_txn(txn): sql = ( "SELECT e.stream_ordering, ej.internal_metadata, ej.json, eg.state_group" @@ -1155,7 +1161,7 @@ class EventsStore(SQLBaseStore): " ORDER BY e.stream_ordering ASC" " LIMIT ?" ) - if last_forward_id != current_forward_id: + if have_forward_events: txn.execute(sql, (last_forward_id, current_forward_id, limit)) new_forward_events = txn.fetchall() @@ -1199,7 +1205,7 @@ class EventsStore(SQLBaseStore): " ORDER BY e.stream_ordering DESC" " LIMIT ?" ) - if last_backfill_id != current_backfill_id: + if have_backfill_events: txn.execute(sql, (-last_backfill_id, -current_backfill_id, limit)) new_backfill_events = txn.fetchall() |