[db] Add index to d_b_workspace_instance on startedTime & stoppingTime

components/gitpod-db/src/typeorm/migration/1664441455556-WorkspaceInstanceStartedStoppingIndex.ts

@@ -0,0 +1,26 @@
+/**
+ * Copyright (c) 2022 Gitpod GmbH. All rights reserved.
+ * Licensed under the GNU Affero General Public License (AGPL).
+ * See License-AGPL.txt in the project root for license information.
+ */
+
+import { MigrationInterface, QueryRunner } from "typeorm";
+import { indexExists } from "./helper/helper";
+
+export class WorkspaceInstanceStartedStoppingIndex1662491259313 implements MigrationInterface {
+    public async up(queryRunner: QueryRunner): Promise<void> {
+        const TABLE_NAME = "d_b_workspace_instance";
+
+        const startedTimeIndex = "IDX_workspace_instance__started_time";
+        if (!(await indexExists(queryRunner, TABLE_NAME, startedTimeIndex))) {
+            await queryRunner.query(`CREATE INDEX ${startedTimeIndex} ON ${TABLE_NAME} (startedTime)`);
+        }
+
+        const stoppingTimeIndex = "IDX_workspace_instance__stopping_time";
+        if (!(await indexExists(queryRunner, TABLE_NAME, stoppingTimeIndex))) {
+            await queryRunner.query(`CREATE INDEX ${stoppingTimeIndex} ON ${TABLE_NAME} (stoppingTime)`);
+        }
+    }
+
+    public async down(queryRunner: QueryRunner): Promise<void> {}
+}