Struct PcoData 

pub struct PcoData { /* private fields */ }

Encoding-specific data for a PcoArray.

Implementations

impl PcoData

pub fn validate( &self, dtype: &DType, len: usize, validity: &Validity, ) -> VortexResult<()>

Validate dtype, validity, slice, and Pco component invariants.

pub fn new( chunk_metas: Vec<ByteBuffer>, pages: Vec<ByteBuffer>, ptype: PType, metadata: PcoMetadata, len: usize, ) -> Self

Construct unsliced Pco data from chunk metadata, pages, and serialized metadata.

pub fn from_primitive( parray: ArrayView<'_, Primitive>, level: usize, values_per_page: usize, ctx: &mut ExecutionCtx, ) -> VortexResult<Self>

Compress a primitive array into Pco data.

pub fn from_array( array: ArrayRef, level: usize, nums_per_page: usize, ctx: &mut ExecutionCtx, ) -> VortexResult<Self>

Downcast and compress an array into Pco data.

Errors

Returns an error if the input is not a primitive array or compression fails.

pub fn decompress( &self, unsliced_validity: &Validity, ctx: &mut ExecutionCtx, ) -> VortexResult<PrimitiveArray>

Decompress this Pco data into a primitive array.

pub fn len(&self) -> usize

Returns the number of elements in the array.

pub fn is_empty(&self) -> bool

Returns true if the array contains no elements.

Trait Implementations

impl ArrayEq for PcoData

fn array_eq(&self, other: &Self, accuracy: EqMode) -> bool

impl ArrayHash for PcoData

fn array_hash<H: Hasher>(&self, state: &mut H, accuracy: EqMode)

impl Clone for PcoData

fn clone(&self) -> PcoData

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PcoData

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

Formats the value using the given formatter.

impl Display for PcoData

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

Formats the value using the given formatter.