immich/server/libs/database/src/migrations/1661881837496-AddAssetChecksum.ts

import { MigrationInterface, QueryRunner } from 'typeorm';

export class AddAssetChecksum1661881837496 implements MigrationInterface {
  name = 'AddAssetChecksum1661881837496';

  public async up(queryRunner: QueryRunner): Promise<void> {
    await queryRunner.query(`ALTER TABLE "assets" ADD "checksum" bytea`);
    await queryRunner.query(
      `CREATE INDEX "IDX_64c507300988dd1764f9a6530c" ON "assets" ("checksum") WHERE 'checksum' IS NOT NULL`,
    );
  }

  public async down(queryRunner: QueryRunner): Promise<void> {
    await queryRunner.query(`DROP INDEX "public"."IDX_64c507300988dd1764f9a6530c"`);
    await queryRunner.query(`ALTER TABLE "assets" DROP COLUMN "checksum"`);
  }
}