Exemple #1
0
func getZeroValue(col *model.ColumnInfo) types.Datum {
	var d types.Datum
	switch col.Tp {
	case mysql.TypeTiny, mysql.TypeInt24, mysql.TypeShort, mysql.TypeLong, mysql.TypeLonglong, mysql.TypeYear:
		if mysql.HasUnsignedFlag(col.Flag) {
			d.SetUint64(0)
		} else {
			d.SetInt64(0)
		}
	case mysql.TypeFloat:
		d.SetFloat32(0)
	case mysql.TypeDouble:
		d.SetFloat64(0)
	case mysql.TypeNewDecimal:
		d.SetMysqlDecimal(mysql.NewDecimalFromInt(0, 0))
	case mysql.TypeString, mysql.TypeVarString, mysql.TypeVarchar:
		d.SetString("")
	case mysql.TypeBlob, mysql.TypeTinyBlob, mysql.TypeMediumBlob, mysql.TypeLongBlob:
		d.SetBytes([]byte{})
	case mysql.TypeDuration:
		d.SetMysqlDuration(mysql.ZeroDuration)
	case mysql.TypeDate, mysql.TypeNewDate:
		d.SetMysqlTime(mysql.ZeroDate)
	case mysql.TypeTimestamp:
		d.SetMysqlTime(mysql.ZeroTimestamp)
	case mysql.TypeDatetime:
		d.SetMysqlTime(mysql.ZeroDatetime)
	case mysql.TypeBit:
		d.SetMysqlBit(mysql.Bit{Value: 0, Width: mysql.MinBitWidth})
	case mysql.TypeSet:
		d.SetMysqlSet(mysql.Set{})
	}
	return d
}