diff options
Diffstat (limited to 'synapse/storage/databases/main/events.py')
| -rw-r--r-- | synapse/storage/databases/main/events.py | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/synapse/storage/databases/main/events.py b/synapse/storage/databases/main/events.py index fd7167904d..f1bd85aa27 100644 --- a/synapse/storage/databases/main/events.py +++ b/synapse/storage/databases/main/events.py @@ -95,6 +95,10 @@ class DeltaState: to_insert: StateMap[str] no_longer_in_room: bool = False + def is_noop(self) -> bool: + """Whether this state delta is actually empty""" + return not self.to_delete and not self.to_insert and not self.no_longer_in_room + class PersistEventsStore: """Contains all the functions for writing events to the database. @@ -1017,6 +1021,9 @@ class PersistEventsStore: ) -> None: """Update the current state stored in the datatabase for the given room""" + if state_delta.is_noop(): + return + async with self._stream_id_gen.get_next() as stream_ordering: await self.db_pool.runInteraction( "update_current_state", |