String *Item_int::val_str(String *str)
{
  // following assert is redundant, because fixed=1 assigned in constructor
  DBUG_ASSERT(fixed == 1);
  str->set_int(value, unsigned_flag, collation.collation);
  return str;
}
String *Item_int::val_str(String *str)
{
   
  DBUG_ASSERT(fixed == 1);
  str->set_int(value, unsigned_flag, collation.collation);
  return str;
}