record.go
func (r Record) GetTime(column string) (time.Time, error) {
	v, err := r.getKey(reflect.Float64, column)
	if err != nil {
		return time.Time{}, err
	}

	return time.Unix(int64(v.(float64)), 0), nil
}
func (r Record) GetTime(column string) (time.Time, error) {
	v, err := r.getKey(reflect.Float64, column)
	if err != nil {
		return time.Time{}, err
	}

	return time.Unix(int64(v.(float64)), 0), nil
}
// GetTime returns a time struct value for a specific column.