  Field_vers_trx_id(uchar *ptr_arg, uint32 len_arg, uchar *null_ptr_arg,
                    uchar null_bit_arg, enum utype unireg_check_arg,
                    const LEX_CSTRING *field_name_arg, bool zero_arg,
                    bool unsigned_arg)
      : Field_longlong(ptr_arg, len_arg, null_ptr_arg, null_bit_arg,
                       unireg_check_arg, field_name_arg, zero_arg,
                       unsigned_arg),
        cached(0)
  {}
  Field_vers_trx_id(uchar *ptr_arg, uint32 len_arg, uchar *null_ptr_arg,
                    uchar null_bit_arg, enum utype unireg_check_arg,
                    const LEX_CSTRING *field_name_arg, bool zero_arg,
                    bool unsigned_arg)
      : Field_longlong(ptr_arg, len_arg, null_ptr_arg, null_bit_arg,
                       unireg_check_arg, field_name_arg, zero_arg,
                       unsigned_arg),
        cached(0)
  {}