From 022f99cec974e0bd4bfcda3a46ae0c653c1da558 Mon Sep 17 00:00:00 2001
From: Ezekiel Lee <lee@izeke.me>
Date: Thu, 7 Sep 2023 19:53:04 +0800
Subject: [PATCH] fix(backend): timeout when querying mentions

---
 packages/backend/src/server/api/endpoints/notes/mentions.ts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/packages/backend/src/server/api/endpoints/notes/mentions.ts b/packages/backend/src/server/api/endpoints/notes/mentions.ts
index 0d5cb1130a54..6afe13be6f6c 100644
--- a/packages/backend/src/server/api/endpoints/notes/mentions.ts
+++ b/packages/backend/src/server/api/endpoints/notes/mentions.ts
@@ -63,6 +63,8 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 					.where(`'{"${me.id}"}' <@ note.mentions`)
 					.orWhere(`'{"${me.id}"}' <@ note.visibleUserIds`);
 				}))
+				// Avoid scanning primary key index
+				.orderBy('CONCAT(note.id)', 'DESC')
 				.innerJoinAndSelect('note.user', 'user')
 				.leftJoinAndSelect('note.reply', 'reply')
 				.leftJoinAndSelect('note.renote', 'renote')