For example

CREATE TABLE t (optional VARCHAR(64));

rows, err := db.Query("SELECT optional FROM t  LIMIT 1?")
for rows.Next() {
  var o mo.Option[string]
  if err := rows.Scan(&o); err != nil {
	  t.Errorf("Failed scanning row: %s", err.Error())
	  continue
  }
}

then will got Failed scanning row: sql: Scan error on column index 1, name "optional": failed to scan Option[T], and the reason is
that type of arg src of Scan is []uint8, and failed here when assert type is string, refer to sql.NullString, we can use the function sql.convertAssign to replace the driver.DefaultParameterConverter.ConvertValue to resolve it, but the convertAssign is private, and maybe won't be public(refer to golang/go#24258), so we can copy out the convertAssign and make some modification or write a new convert function? what do you think? Or have some other solution?