func (d *Datum) compareMysqlTime(time mysql.Time) (int, error) {
switch d.k {
case KindString, KindBytes:
dt, err := mysql.ParseDatetime(d.GetString())
return dt.Compare(time), err
case KindMysqlTime:
return d.GetMysqlTime().Compare(time), nil
default:
fVal, _ := time.ToNumber().ToFloat64()
return d.compareFloat64(fVal)
}
}
