Trait lance_arrow::floats::ArrowFloatType

pub trait ArrowFloatType: Debug {
    type Native: FromPrimitive + FloatToArrayType<ArrowType = Self> + AsPrimitive<f32> + Debug + Display;
    type ArrayType: FloatArray<Self>;

    const FLOAT_TYPE: FloatType;
    const MIN: Self::Native;
    const MAX: Self::Native;

    // Provided method
    fn empty_array() -> Self::ArrayType { ... }
}

Trait for float types used in Arrow Array.

Required Associated Types

type Native: FromPrimitive + FloatToArrayType<ArrowType = Self> + AsPrimitive<f32> + Debug + Display

type ArrayType: FloatArray<Self>

Arrow Float Array Type.

Required Associated Constants

const FLOAT_TYPE: FloatType

const MIN: Self::Native

const MAX: Self::Native

Provided Methods

fn empty_array() -> Self::ArrayType

Returns empty array of this type.

Object Safety

This trait is not object safe.

Implementations on Foreign Types

impl ArrowFloatType for Float16Type

type Native = f16

const FLOAT_TYPE: FloatType = FloatType::Float16

const MIN: Self::Native = {transmute(0xfbff): <arrow_array::types::Float16Type as floats::ArrowFloatType>::Native}

const MAX: Self::Native = {transmute(0x7bff): <arrow_array::types::Float16Type as floats::ArrowFloatType>::Native}

type ArrayType = PrimitiveArray<Float16Type>

impl ArrowFloatType for Float32Type

type Native = f32

const FLOAT_TYPE: FloatType = FloatType::Float32

const MIN: Self::Native = {transmute(0xff7fffff): <arrow_array::types::Float32Type as floats::ArrowFloatType>::Native}

const MAX: Self::Native = {transmute(0x7f7fffff): <arrow_array::types::Float32Type as floats::ArrowFloatType>::Native}

type ArrayType = PrimitiveArray<Float32Type>

impl ArrowFloatType for Float64Type

type Native = f64

const FLOAT_TYPE: FloatType = FloatType::Float64

const MIN: Self::Native = {transmute(0xffefffffffffffff): <arrow_array::types::Float64Type as floats::ArrowFloatType>::Native}

const MAX: Self::Native = {transmute(0x7fefffffffffffff): <arrow_array::types::Float64Type as floats::ArrowFloatType>::Native}

type ArrayType = PrimitiveArray<Float64Type>

Implementors

impl ArrowFloatType for BFloat16Type

type Native = bf16

const FLOAT_TYPE: FloatType = FloatType::BFloat16

const MIN: Self::Native = {transmute(0xff7f): <bfloat16::BFloat16Type as floats::ArrowFloatType>::Native}

const MAX: Self::Native = {transmute(0x7f7f): <bfloat16::BFloat16Type as floats::ArrowFloatType>::Native}

type ArrayType = BFloat16Array