From 30223fe8d891b003236547fd9683f1c356941ec4 Mon Sep 17 00:00:00 2001
From: "Olivier Wilkinson (reivilibre)" <oliverw@matrix.org>
Date: Fri, 17 Jun 2022 12:39:54 +0100
Subject: [PATCH 1/2] Fix type error introduced accidentally by #13045

---
 synapse/storage/databases/main/devices.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/synapse/storage/databases/main/devices.py b/synapse/storage/databases/main/devices.py
index 93d980786e03..adde5d097810 100644
--- a/synapse/storage/databases/main/devices.py
+++ b/synapse/storage/databases/main/devices.py
@@ -1245,8 +1245,8 @@ async def get_device_list_changes_in_rooms(
 
         def _get_device_list_changes_in_rooms_txn(
             txn: LoggingTransaction,
-            clause,
-            args,
+            clause: str,
+            args: List[Any],
         ) -> Set[str]:
             txn.execute(sql.format(clause=clause), args)
             return {user_id for user_id, in txn}

From 9b94d17ddf752f556661f491cc3089c2b1761bf5 Mon Sep 17 00:00:00 2001
From: "Olivier Wilkinson (reivilibre)" <oliverw@matrix.org>
Date: Fri, 17 Jun 2022 12:40:38 +0100
Subject: [PATCH 2/2] Newsfile

Signed-off-by: Olivier Wilkinson (reivilibre) <oliverw@matrix.org>
---
 changelog.d/13098.feature | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 changelog.d/13098.feature

diff --git a/changelog.d/13098.feature b/changelog.d/13098.feature
new file mode 100644
index 000000000000..7b0667ba9516
--- /dev/null
+++ b/changelog.d/13098.feature
@@ -0,0 +1 @@
+Speed up fetching of device list changes in `/sync` and `/keys/changes`.