Struct Decimal128 

pub struct Decimal128<const P: u8, const S: i8>(/* private fields */);

Fixed-precision decimal stored in 128 bits. The value is represented as a scaled integer of type i128.

Implementations

impl<const P: u8, const S: i8> Decimal128<P, S>

pub fn new(value: i128) -> Self

Construct a new Decimal128<P,S> from a scaled integer value.

pub fn value(&self) -> i128

Return the scaled integer value.

pub fn into_value(self) -> i128

Consume and return the scaled integer value.

Trait Implementations

impl<const P: u8, const S: i8> ArrowBinding for Decimal128<P, S>

type Builder = PrimitiveBuilder<Decimal128Type>

Concrete Arrow builder type used for this Rust type.

type Array = PrimitiveArray<Decimal128Type>

Concrete Arrow array type produced by finish.

fn data_type() -> DataType

The Arrow DataType corresponding to this Rust type.

fn new_builder(capacity: usize) -> Self::Builder

Create a new builder with an optional capacity hint.

fn append_value(b: &mut Self::Builder, v: &Self)

Append a non-null value to the builder.

fn append_null(b: &mut Self::Builder)

Append a null to the builder.

fn finish(b: Self::Builder) -> Self::Array

Finish the builder and produce a typed Arrow array.

fn estimated_bytes_per_value() -> usize

Estimated bytes per value for variable-length types (String, Binary, etc.). Returns 0 for fixed-size types. Used to pre-allocate buffer space.

impl<const P: u8, const S: i8> ArrowBindingView for Decimal128<P, S>

Available on crate feature views only.

type Array = PrimitiveArray<Decimal128Type>

The Arrow array type this view reads from.

type View<'a> = Decimal128<P, S>

The borrowed view type returned when accessing array elements. For example: &'a str for StringArray, i64 for Int64Array.

fn get_view( array: &Self::Array, index: usize, ) -> Result<Self::View<'_>, ViewAccessError>

Extract a view at the given index from the array.