[db] DBProjectUsage: drop deleted column (unused)

Author: geropl

components/gitpod-db/src/tables.ts

@@ -86,12 +86,6 @@ export class GitpodTableDescriptionProvider implements TableDescriptionProvider
             deletionColumn: "deleted",
             timeColumn: "_lastModified",
         },
-        {
-            name: "d_b_project_usage",
-            primaryKeys: ["projectId"],
-            deletionColumn: "deleted",
-            timeColumn: "_lastModified",
-        },
         {
             name: "d_b_user_ssh_public_key",
             primaryKeys: ["id"],

components/gitpod-db/src/typeorm/entity/db-project-usage.ts

@@ -19,8 +19,4 @@ export class DBProjectUsage {
 
     @Column("varchar")
     lastWorkspaceStart: string;
-
-    // This column triggers the periodic deleter deletion mechanism. It's not intended for public consumption.
-    @Column()
-    deleted: boolean;
 }

components/gitpod-db/src/typeorm/migration/1695821957148-ProjectUsageDropDeleted.ts

@@ -0,0 +1,27 @@
+/**
+ * Copyright (c) 2023 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 { columnExists } from "./helper/helper";
+
+const TABLE_NAME = "d_b_project_usage";
+const COLUMN_NAME = "deleted";
+
+export class ProjectUsageDropDeleted1695821957148 implements MigrationInterface {
+    public async up(queryRunner: QueryRunner): Promise<void> {
+        if (await columnExists(queryRunner, TABLE_NAME, COLUMN_NAME)) {
+            await queryRunner.query(`ALTER TABLE \`${TABLE_NAME}\` DROP COLUMN \`${COLUMN_NAME}\`, ALGORITHM=INSTANT`);
+        }
+    }
+
+    public async down(queryRunner: QueryRunner): Promise<void> {
+        if (!(await columnExists(queryRunner, TABLE_NAME, COLUMN_NAME))) {
+            await queryRunner.query(
+                `ALTER TABLE \`${TABLE_NAME}\` ADD COLUMN \`${COLUMN_NAME}\` tinyint(4) NOT NULL DEFAULT '0', ALGORITHM=INSTANT`,
+            );
+        }
+    }
+}