bool is_simple_order(ORDER *order)
{
  for (ORDER *ord= order; ord; ord= ord->next)
  {
    if (ord->item[0]->real_item()->type() != Item::FIELD_ITEM)
      return FALSE;
  }
  return TRUE;
}
bool is_simple_order(ORDER *order)
{
  for (ORDER *ord= order; ord; ord= ord->next)
  {
    if (ord->item[0]->real_item()->type() != Item::FIELD_ITEM)
      return FALSE;
  }
  return TRUE;
}