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-rw-r--r--synapse/storage/databases/main/group_server.py9
1 files changed, 2 insertions, 7 deletions
diff --git a/synapse/storage/databases/main/group_server.py b/synapse/storage/databases/main/group_server.py
index da21a50144..c15a7136b6 100644
--- a/synapse/storage/databases/main/group_server.py
+++ b/synapse/storage/databases/main/group_server.py
@@ -29,11 +29,6 @@ class GroupServerStore(SQLBaseStore):
         db_conn: LoggingDatabaseConnection,
         hs: "HomeServer",
     ):
-        database.updates.register_background_index_update(
-            update_name="local_group_updates_index",
-            index_name="local_group_updates_stream_id_index",
-            table="local_group_updates",
-            columns=("stream_id",),
-            unique=True,
-        )
+        # Register a legacy groups background update as a no-op.
+        database.updates.register_noop_background_update("local_group_updates_index")
         super().__init__(database, db_conn, hs)