Improve performance of query _get_subset_users_in_room_with_profiles (#13299)

changelog.d/13299.misc

@@ -0,0 +1 @@
+Improve performance of query  `_get_subset_users_in_room_with_profiles`.

synapse/storage/databases/main/roommember.py

@@ -243,7 +243,7 @@ class RoomMemberWorkerStore(EventsWorkerStore):
             txn: LoggingTransaction,
         ) -> Dict[str, ProfileInfo]:
             clause, ids = make_in_list_sql_clause(
-                self.database_engine, "m.user_id", user_ids
+                self.database_engine, "c.state_key", user_ids
             )
 
             sql = """