Skip to main content

ColumnData

Enum ColumnData 

Source
pub enum ColumnData {
    Float64(Vec<f64>),
    Int64(Vec<i64>),
    Bool(Vec<bool>),
    Utf8(Vec<String>),
    Timedelta64(Vec<i64>),
    Datetime64(Vec<i64>),
    Period(Vec<i64>),
    Interval(Vec<Interval>),
}
Expand description

AG-10: Typed array representation for vectorized batch execution.

Stores column data as contiguous typed arrays rather than Vec<Scalar>. Validity is tracked by ValidityMask; invalid positions hold unspecified values in the typed array (callers must check validity before reading).

This eliminates per-element enum dispatch for arithmetic operations, enabling SIMD auto-vectorization on &[f64] / &[i64] slices.

Variants§

§

Float64(Vec<f64>)

§

Int64(Vec<i64>)

§

Bool(Vec<bool>)

§

Utf8(Vec<String>)

§

Timedelta64(Vec<i64>)

§

Datetime64(Vec<i64>)

§

Period(Vec<i64>)

§

Interval(Vec<Interval>)

Implementations§

Source§

impl ColumnData

Source

pub fn from_scalars(values: &[Scalar], dtype: DType) -> Self

Materialize typed array from a Vec<Scalar> and its ValidityMask.

Invalid positions get a default sentinel (0 / 0.0 / false / “”). The caller must pair this with the corresponding ValidityMask to interpret which positions are actually valid.

Source

pub fn to_scalars(&self, dtype: DType, validity: &ValidityMask) -> Vec<Scalar>

Convert typed array back to Vec<Scalar>, respecting ValidityMask.

Source

pub fn len(&self) -> usize

Source

pub fn is_empty(&self) -> bool

Trait Implementations§

Source§

impl Clone for ColumnData

Source§

fn clone(&self) -> ColumnData

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
Source§

impl Debug for ColumnData

Source§

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
Source§

impl PartialEq for ColumnData

Source§

fn eq(&self, other: &ColumnData) -> bool

Tests for self and other values to be equal, and is used by ==.
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
Source§

impl StructuralPartialEq for ColumnData

Auto Trait Implementations§

Blanket Implementations§

Source§

impl<T> Any for T
where T: 'static + ?Sized,

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T> Borrow<T> for T
where T: ?Sized,

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
Source§

impl<T> CloneToUninit for T
where T: Clone,

Source§

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

impl<T, U> Into<U> for T
where U: From<T>,

Source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source§

impl<T> ToOwned for T
where T: Clone,

Source§

type Owned = T

The resulting type after obtaining ownership.
Source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
Source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
Source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
Source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

Source§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
Source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.