From 7aa3bdb641ac544dda3f61bfc4c760bdf2e1d634 Mon Sep 17 00:00:00 2001
From: Laura Hausmann <laura@hausmann.dev>
Date: Fri, 24 Nov 2023 03:59:22 +0100
Subject: [PATCH] [backend] Use more efficient home timeline heuristics query

---
 .../src/server/api/common/generate-following-query.ts      | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/packages/backend/src/server/api/common/generate-following-query.ts b/packages/backend/src/server/api/common/generate-following-query.ts
index 2b1063b54..14835f7f5 100644
--- a/packages/backend/src/server/api/common/generate-following-query.ts
+++ b/packages/backend/src/server/api/common/generate-following-query.ts
@@ -23,7 +23,12 @@ export async function generateFollowingQuery(
 		return Notes.createQueryBuilder('note')
 			.where(`note.createdAt > :prev`, { prev })
 			.andWhere(`note.createdAt < :curr`, { curr })
-			.andWhere(`note.userId = ANY(array(${followingQuery.getQuery()} UNION ALL VALUES (:meId)))`, { meId: me.id })
+			.andWhere(
+				new Brackets((qb) => {
+					qb.where(`note.userId IN (${followingQuery.getQuery()})`);
+					qb.orWhere(`note.userId = :meId`, { meId: me.id });
+				})
+			)
 			.getCount()
 			.then(res => {
 				logger.info(`Calculating heuristics for user ${me.id} took ${new Date().getTime() - curr.getTime()}ms`);