
  TYPE
    pft$backup_file_version = (pfc$backup_file_version_1,
          pfc$backup_file_version_2, pfc$backup_file_version_3,
          pfc$backup_file_version_4, pfc$backup_file_version_5,
          pfc$backup_file_version_6, pfc$backup_file_version_7);

