|| $self->ut_numbern('delay_start')
|| $self->ut_foreign_keyn('successor', 'part_pkg', 'pkgpart')
|| $self->ut_foreign_keyn('family_pkgpart', 'part_pkg', 'pkgpart')
|| $self->ut_numbern('delay_start')
|| $self->ut_foreign_keyn('successor', 'part_pkg', 'pkgpart')
|| $self->ut_foreign_keyn('family_pkgpart', 'part_pkg', 'pkgpart')