示例#1
0
文件: util.go 项目: gaohf/tidb
func dumpBinaryDateTime(t mysql.Time, loc *time.Location) (data []byte) {
	if t.Type == mysql.TypeTimestamp && loc != nil {
		t.Time = t.In(loc)
	}

	year, mon, day := t.Year(), t.Month(), t.Day()
	if t.IsZero() {
		year, mon, day = 1, time.January, 1
	}
	switch t.Type {
	case mysql.TypeTimestamp, mysql.TypeDatetime:
		data = append(data, 11)
		data = append(data, dumpUint16(uint16(year))...)
		data = append(data, byte(mon), byte(day), byte(t.Hour()), byte(t.Minute()), byte(t.Second()))
		data = append(data, dumpUint32(uint32((t.Nanosecond() / 1000)))...)
	case mysql.TypeDate, mysql.TypeNewDate:
		data = append(data, 4)
		data = append(data, dumpUint16(uint16(year))...) //year
		data = append(data, byte(mon), byte(day))
	}
	return
}
示例#2
0
文件: extract.go 项目: Brian110/tidb
func extractTime(unit string, t mysql.Time) (int64, error) {
	switch strings.ToUpper(unit) {
	case "MICROSECOND":
		return int64(t.Nanosecond() / 1000), nil
	case "SECOND":
		return int64(t.Second()), nil
	case "MINUTE":
		return int64(t.Minute()), nil
	case "HOUR":
		return int64(t.Hour()), nil
	case "DAY":
		return int64(t.Day()), nil
	case "WEEK":
		_, week := t.ISOWeek()
		return int64(week), nil
	case "MONTH":
		return int64(t.Month()), nil
	case "QUARTER":
		m := int64(t.Month())
		// 1 - 3 -> 1
		// 4 - 6 -> 2
		// 7 - 9 -> 3
		// 10 - 12 -> 4
		return (m + 2) / 3, nil
	case "YEAR":
		return int64(t.Year()), nil
	case "SECOND_MICROSECOND":
		return int64(t.Second())*1000000 + int64(t.Nanosecond())/1000, nil
	case "MINUTE_MICROSECOND":
		_, m, s := t.Clock()
		return int64(m)*100000000 + int64(s)*1000000 + int64(t.Nanosecond())/1000, nil
	case "MINUTE_SECOND":
		_, m, s := t.Clock()
		return int64(m*100 + s), nil
	case "HOUR_MICROSECOND":
		h, m, s := t.Clock()
		return int64(h)*10000000000 + int64(m)*100000000 + int64(s)*1000000 + int64(t.Nanosecond())/1000, nil
	case "HOUR_SECOND":
		h, m, s := t.Clock()
		return int64(h)*10000 + int64(m)*100 + int64(s), nil
	case "HOUR_MINUTE":
		h, m, _ := t.Clock()
		return int64(h)*100 + int64(m), nil
	case "DAY_MICROSECOND":
		h, m, s := t.Clock()
		d := t.Day()
		return int64(d*1000000+h*10000+m*100+s)*1000000 + int64(t.Nanosecond())/1000, nil
	case "DAY_SECOND":
		h, m, s := t.Clock()
		d := t.Day()
		return int64(d)*1000000 + int64(h)*10000 + int64(m)*100 + int64(s), nil
	case "DAY_MINUTE":
		h, m, _ := t.Clock()
		d := t.Day()
		return int64(d)*10000 + int64(h)*100 + int64(m), nil
	case "DAY_HOUR":
		h, _, _ := t.Clock()
		d := t.Day()
		return int64(d)*100 + int64(h), nil
	case "YEAR_MONTH":
		y, m, _ := t.Date()
		return int64(y)*100 + int64(m), nil
	default:
		return 0, errors.Errorf("invalid unit %s", unit)
	}
}