1 files changed, 5 insertions, 4 deletions
diff --git a/synapse/storage/databases/main/purge_events.py b/synapse/storage/databases/main/purge_events.py
index 1a5b5731bb..56c8198149 100644
--- a/synapse/storage/databases/main/purge_events.py
+++ b/synapse/storage/databases/main/purge_events.py
@@ -89,10 +89,11 @@ class PurgeEventsStore(StateGroupWorkerStore, CacheInvalidationWorkerStore):
         # furthermore, we might already have the table from a previous (failed)
         # purge attempt, so let's drop the table first.
 
-        if isinstance(self.database_engine, PostgresEngine):
-            # Disable statement timeouts for this transaction; purging rooms can
-            # take a while!
-            txn.execute("SET LOCAL statement_timeout = 0")
+        # Disable statement timeouts for this transaction; purging rooms can
+        # take a while!
+        self.database_engine.attempt_to_set_statement_timeout(
+            txn, 0, for_transaction=True
+        )
 
         txn.execute("DROP TABLE IF EXISTS events_to_purge")