Struct q_compress::wrapped::ChunkSpec

pub struct ChunkSpec { /* private fields */ }

A specification for how many elements there will be in each of a chunk’s data pages.

By default this specifies a single data page containing all the data. You can also specify exact data page sizes via .with_page_sizes. Data pages must be specified up-front for each chunk for performance reasons.

Implementations

impl ChunkSpec

pub fn with_page_sizes(self, sizes: Vec<usize>) -> Self

Modifies the spec to use the exact data page sizes given. These must sum to the actual number of elements to be compressed.

E.g.

use q_compress::wrapped::ChunkSpec;
let spec = ChunkSpec::default().with_page_sizes(vec![1, 2, 3]);

can only be used if the chunk actually contains 1+2+3=6 numbers.

Trait Implementations

impl Clone for ChunkSpec

fn clone(&self) -> ChunkSpec

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ChunkSpec

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

Formats the value using the given formatter.

impl Default for ChunkSpec

fn default() -> ChunkSpec

Returns the “default value” for a type.