Change to not require a state_groups.room_id index.

This does mean that we won't clean up orphaned state groups (i.e. state
groups that were persisted but the associated event wasn't).

1 files changed, 2 insertions, 2 deletions

diff --git a/synapse/storage/purge_events.py b/synapse/storage/purge_events.py

index dd45df0c88..a368182034 100644
--- a/synapse/storage/purge_events.py
+++ b/synapse/storage/purge_events.py
@@ -33,8 +33,8 @@ class PurgeEventsStorage(object):
         """Deletes all record of a room
         """
 
-        yield self.stores.main.purge_room(room_id)
-        yield self.stores.main.purge_room_state(room_id)
+        state_groups_to_delete = yield self.stores.main.purge_room(room_id)
+        yield self.stores.main.purge_room_state(room_id, state_groups_to_delete)
 
     @defer.inlineCallbacks
     def purge_history(self, room_id, token, delete_local_events):