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-rw-r--r--synapse/storage/__init__.py12
1 files changed, 12 insertions, 0 deletions
diff --git a/synapse/storage/__init__.py b/synapse/storage/__init__.py
index 11655bf60f..3c88ba9860 100644
--- a/synapse/storage/__init__.py
+++ b/synapse/storage/__init__.py
@@ -223,6 +223,18 @@ class DataStore(RoomMemberStore, RoomStore,
             "DeviceListFederationStreamChangeCache", device_list_max,
         )
 
+        curr_state_delta_prefill, min_curr_state_delta_id = self._get_cache_dict(
+            db_conn, "current_state_delta_stream",
+            entity_column="room_id",
+            stream_column="stream_id",
+            max_value=events_max,  # As we share the stream id with events token
+            limit=1000,
+        )
+        self._curr_state_delta_stream_cache = StreamChangeCache(
+            "_curr_state_delta_stream_cache", min_curr_state_delta_id,
+            prefilled_cache=curr_state_delta_prefill,
+        )
+
         cur = LoggingTransaction(
             db_conn.cursor(),
             name="_find_stream_orderings_for_times_txn",