Trait arrow::datatypes::DecimalType

pub trait DecimalType: 'static + Send + Sync + DecimalTypeSealed {
    type Native: NativeDecimalType;

    const BYTE_LENGTH: usize;
    const MAX_PRECISION: usize;
    const MAX_SCALE: usize;
    const TYPE_CONSTRUCTOR: fn(_: usize, _: usize) -> DataType;
    const DEFAULT_TYPE: DataType;
}

A trait over the decimal types, used by DecimalArray to provide a generic implementation across the various decimal types

Implemented by Decimal128Type and Decimal256Type for Decimal128Array and Decimal256Array respectively

Required Associated Types

type Native: NativeDecimalType

Required Associated Constants

const BYTE_LENGTH: usize

const MAX_PRECISION: usize

const MAX_SCALE: usize

const TYPE_CONSTRUCTOR: fn(_: usize, _: usize) -> DataType

const DEFAULT_TYPE: DataType

Implementors

impl DecimalType for Decimal128Type

type Native = [u8; 16]

const BYTE_LENGTH: usize = 16usize

const MAX_PRECISION: usize = 38usize

const MAX_SCALE: usize = 38usize

const TYPE_CONSTRUCTOR: fn(_: usize, _: usize) -> DataType = {datatypes::datatype::DataType::Decimal128 as fn(usize, usize) -> datatypes::datatype::DataType}

const DEFAULT_TYPE: DataType = _

impl DecimalType for Decimal256Type

type Native = [u8; 32]

const BYTE_LENGTH: usize = 32usize

const MAX_PRECISION: usize = 76usize

const MAX_SCALE: usize = 76usize

const TYPE_CONSTRUCTOR: fn(_: usize, _: usize) -> DataType = {datatypes::datatype::DataType::Decimal256 as fn(usize, usize) -> datatypes::datatype::DataType}

const DEFAULT_TYPE: DataType = _