export bool sql_mode_string_representation(THD *thd, ulong sql_mode,
                                           LEX_STRING *ls)
{
  set_to_string(thd, ls, sql_mode, sql_mode_names);
  return ls->str == 0;
}
export bool sql_mode_string_representation(THD *thd, ulong sql_mode,
                                           LEX_STRING *ls)
{
  set_to_string(thd, ls, sql_mode, sql_mode_names);
  return ls->str == 0;
}