From 40c3f3d76454abad72e6dd3c8693e151b3b17fc6 Mon Sep 17 00:00:00 2001
From: Takeshi Umeda <noel.yoshiba@gmail.com>
Date: Thu, 20 Aug 2020 17:17:55 +0900
Subject: [PATCH] Fix a slow query on channel timeline (#6663)

---
 .../1597893996136-ChannelNoteIdDescIndex.ts      | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 migration/1597893996136-ChannelNoteIdDescIndex.ts

diff --git a/migration/1597893996136-ChannelNoteIdDescIndex.ts b/migration/1597893996136-ChannelNoteIdDescIndex.ts
new file mode 100644
index 000000000..6cbd865fc
--- /dev/null
+++ b/migration/1597893996136-ChannelNoteIdDescIndex.ts
@@ -0,0 +1,16 @@
+import {MigrationInterface, QueryRunner} from "typeorm";
+
+export class ChannelNoteIdDescIndex1597893996136 implements MigrationInterface {
+    name = 'ChannelNoteIdDescIndex1597893996136'
+
+    public async up(queryRunner: QueryRunner): Promise<void> {
+				await queryRunner.query(`DROP INDEX "IDX_f22169eb10657bded6d875ac8f"`);
+				await queryRunner.query(`CREATE INDEX "IDX_note_on_channelId_and_id_desc" ON "note" ("channelId", "id" desc)`);
+		}
+
+    public async down(queryRunner: QueryRunner): Promise<void> {
+				await queryRunner.query(`DROP INDEX "IDX_note_on_channelId_and_id_desc"`);
+        await queryRunner.query(`CREATE INDEX "IDX_f22169eb10657bded6d875ac8f" ON "note" ("channelId") `);
+    }
+
+}