Don't serialize current state over replication

1 files changed, 14 insertions, 0 deletions

diff --git a/synapse/storage/state.py b/synapse/storage/state.py
index d0a840456a..2b325e1c1f 100644
--- a/synapse/storage/state.py
+++ b/synapse/storage/state.py
@@ -140,6 +140,20 @@ class StateGroupWorkerStore(SQLBaseStore):
         defer.returnValue(group_to_state)
 
     @defer.inlineCallbacks
+    def get_state_ids_for_group(self, state_group):
+        """Get the state IDs for the given state group
+
+        Args:
+            state_group (int)
+
+        Returns:
+            Deferred[dict]: Resolves to a map of (type, state_key) -> event_id
+        """
+        group_to_state = yield self._get_state_for_groups((state_group,))
+
+        defer.returnValue(group_to_state[state_group])
+
+    @defer.inlineCallbacks
     def get_state_groups(self, room_id, event_ids):
         """ Get the state groups for the given list of event_ids