Golang Datum.SetValue 예제들

예제 #1

파일: tablecodec.go 프로젝트: pingcap/tidb

// Unflatten converts a raw datum to a column datum.
func Unflatten(datum types.Datum, ft *types.FieldType, inIndex bool) (types.Datum, error) {
	if datum.IsNull() {
		return datum, nil
	}
	switch ft.Tp {
	case mysql.TypeFloat:
		datum.SetFloat32(float32(datum.GetFloat64()))
		return datum, nil
	case mysql.TypeTiny, mysql.TypeShort, mysql.TypeYear, mysql.TypeInt24,
		mysql.TypeLong, mysql.TypeLonglong, mysql.TypeDouble, mysql.TypeTinyBlob,
		mysql.TypeMediumBlob, mysql.TypeBlob, mysql.TypeLongBlob, mysql.TypeVarchar,
		mysql.TypeString:
		return datum, nil
	case mysql.TypeDate, mysql.TypeDatetime, mysql.TypeTimestamp:
		var t types.Time
		t.Type = ft.Tp
		t.Fsp = ft.Decimal
		var err error
		err = t.FromPackedUint(datum.GetUint64())
		if err != nil {
			return datum, errors.Trace(err)
		}
		datum.SetMysqlTime(t)
		return datum, nil
	case mysql.TypeDuration:
		dur := types.Duration{Duration: time.Duration(datum.GetInt64())}
		datum.SetValue(dur)
		return datum, nil
	case mysql.TypeEnum:
		enum, err := types.ParseEnumValue(ft.Elems, datum.GetUint64())
		if err != nil {
			return datum, errors.Trace(err)
		}
		datum.SetValue(enum)
		return datum, nil
	case mysql.TypeSet:
		set, err := types.ParseSetValue(ft.Elems, datum.GetUint64())
		if err != nil {
			return datum, errors.Trace(err)
		}
		datum.SetValue(set)
		return datum, nil
	case mysql.TypeBit:
		bit := types.Bit{Value: datum.GetUint64(), Width: ft.Flen}
		datum.SetValue(bit)
		return datum, nil
	}
	return datum, nil
}

예제 #2

파일: tablecodec.go 프로젝트: anywhy/tidb

// unflatten converts a raw datum to a column datum.
func unflatten(datum types.Datum, ft *types.FieldType) (types.Datum, error) {
	if datum.IsNull() {
		return datum, nil
	}
	switch ft.Tp {
	case mysql.TypeFloat:
		datum.SetFloat32(float32(datum.GetFloat64()))
		return datum, nil
	case mysql.TypeTiny, mysql.TypeShort, mysql.TypeYear, mysql.TypeInt24,
		mysql.TypeLong, mysql.TypeLonglong, mysql.TypeDouble, mysql.TypeTinyBlob,
		mysql.TypeMediumBlob, mysql.TypeBlob, mysql.TypeLongBlob, mysql.TypeVarchar,
		mysql.TypeString:
		return datum, nil
	case mysql.TypeDate, mysql.TypeDatetime, mysql.TypeTimestamp:
		var t mysql.Time
		t.Type = ft.Tp
		t.Fsp = ft.Decimal
		err := t.Unmarshal(datum.GetBytes())
		if err != nil {
			return datum, errors.Trace(err)
		}
		datum.SetMysqlTime(t)
		return datum, nil
	case mysql.TypeDuration:
		dur := mysql.Duration{Duration: time.Duration(datum.GetInt64())}
		datum.SetValue(dur)
		return datum, nil
	case mysql.TypeNewDecimal:
		if datum.Kind() == types.KindMysqlDecimal {
			if ft.Decimal >= 0 {
				dec := datum.GetMysqlDecimal().Truncate(int32(ft.Decimal))
				datum.SetMysqlDecimal(dec)
			}
			return datum, nil
		}
		dec, err := mysql.ParseDecimal(datum.GetString())
		if err != nil {
			return datum, errors.Trace(err)
		}
		if ft.Decimal >= 0 {
			dec = dec.Truncate(int32(ft.Decimal))
		}
		datum.SetValue(dec)
		return datum, nil
	case mysql.TypeEnum:
		enum, err := mysql.ParseEnumValue(ft.Elems, datum.GetUint64())
		if err != nil {
			return datum, errors.Trace(err)
		}
		datum.SetValue(enum)
		return datum, nil
	case mysql.TypeSet:
		set, err := mysql.ParseSetValue(ft.Elems, datum.GetUint64())
		if err != nil {
			return datum, errors.Trace(err)
		}
		datum.SetValue(set)
		return datum, nil
	case mysql.TypeBit:
		bit := mysql.Bit{Value: datum.GetUint64(), Width: ft.Flen}
		datum.SetValue(bit)
		return datum, nil
	}
	return datum, nil
}

예제 #3

파일: tables.go 프로젝트: astaxie/tidb

func unflatten(datum types.Datum, tp *types.FieldType) (types.Datum, error) {
	if datum.Kind() == types.KindNull {
		return datum, nil
	}
	switch tp.Tp {
	case mysql.TypeFloat:
		datum.SetFloat32(float32(datum.GetFloat64()))
		return datum, nil
	case mysql.TypeTiny, mysql.TypeShort, mysql.TypeYear, mysql.TypeInt24, mysql.TypeLong, mysql.TypeLonglong,
		mysql.TypeDouble, mysql.TypeTinyBlob, mysql.TypeMediumBlob, mysql.TypeBlob, mysql.TypeLongBlob,
		mysql.TypeVarchar, mysql.TypeString:
		return datum, nil
	case mysql.TypeDate, mysql.TypeDatetime, mysql.TypeTimestamp:
		var t mysql.Time
		t.Type = tp.Tp
		t.Fsp = tp.Decimal
		err := t.Unmarshal(datum.GetBytes())
		if err != nil {
			return datum, errors.Trace(err)
		}
		datum.SetValue(t)
		return datum, nil
	case mysql.TypeDuration:
		dur := mysql.Duration{Duration: time.Duration(datum.GetInt64())}
		datum.SetValue(dur)
		return datum, nil
	case mysql.TypeNewDecimal, mysql.TypeDecimal:
		dec, err := mysql.ParseDecimal(datum.GetString())
		if err != nil {
			return datum, errors.Trace(err)
		}
		datum.SetValue(dec)
		return datum, nil
	case mysql.TypeEnum:
		enum, err := mysql.ParseEnumValue(tp.Elems, datum.GetUint64())
		if err != nil {
			return datum, errors.Trace(err)
		}
		datum.SetValue(enum)
		return datum, nil
	case mysql.TypeSet:
		set, err := mysql.ParseSetValue(tp.Elems, datum.GetUint64())
		if err != nil {
			return datum, errors.Trace(err)
		}
		datum.SetValue(set)
		return datum, nil
	case mysql.TypeBit:
		bit := mysql.Bit{Value: datum.GetUint64(), Width: tp.Flen}
		datum.SetValue(bit)
		return datum, nil
	}
	log.Error(tp.Tp, datum)
	return datum, nil
}