From 1a815fb04f1d17286be27379dd7463936606bd3a Mon Sep 17 00:00:00 2001
From: Erik Johnston <erik@matrix.org>
Date: Wed, 8 Jun 2016 11:33:30 +0100
Subject: Don't hit DB for noop replications queries

---
 synapse/storage/push_rule.py | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'synapse/storage/push_rule.py')

diff --git a/synapse/storage/push_rule.py b/synapse/storage/push_rule.py
index 786d6f6d67..8183b7f1b0 100644
--- a/synapse/storage/push_rule.py
+++ b/synapse/storage/push_rule.py
@@ -421,6 +421,9 @@ class PushRuleStore(SQLBaseStore):
 
     def get_all_push_rule_updates(self, last_id, current_id, limit):
         """Get all the push rules changes that have happend on the server"""
+        if last_id == current_id:
+            return defer.succeed([])
+
         def get_all_push_rule_updates_txn(txn):
             sql = (
                 "SELECT stream_id, event_stream_ordering, user_id, rule_id,"
-- 
cgit 1.4.1