immich/server/src/infra/migrations/1709763765506-AddExtensionToOriginalFileName.ts

import { MigrationInterface, QueryRunner } from 'typeorm';

export class AddExtensionToOriginalFileName1709763765506 implements MigrationInterface {
  public async up(queryRunner: QueryRunner): Promise<void> {
    await queryRunner.query(`
      WITH extension AS (WITH cte AS (SELECT a.id, STRING_TO_ARRAY(a."originalPath", '.')::TEXT[] AS arr
      FROM assets a)
      SELECT cte.id, cte.arr[ARRAY_UPPER(cte.arr, 1)] AS "ext"
      FROM cte)
      UPDATE assets
      SET "originalFileName" = assets."originalFileName" || '.' || extension."ext"
      FROM extension
      INNER JOIN assets a ON a.id = extension.id;
      `);
  }

  public async down(): Promise<void> {
    // noop
  }
}