Crate vortex_pco 

Pco-backed numeric compression encoding for Vortex arrays.

PcoArray stores valid primitive numeric values in Pco chunks and pages, while Vortex validity tracks null rows separately. Page metadata lets slices decompress only the components required for the requested row range.

Pco supports integer and floating-point primitive dtypes handled by the upstream pco crate. It is normally selected through the BtrBlocks compressor when the pco feature is enabled. To deserialize arrays manually, register the encoding in the array session:

use vortex_array::session::ArraySessionExt;

let session = vortex_array::array_session();
session.arrays().register(vortex_pco::Pco);

Structs

Pco

Pco array encoding marker.

PcoChunkInfo

Metadata for one Pco chunk.

PcoData

Encoding-specific data for a PcoArray.

PcoMetadata

Serialized metadata for a PcoArray.

PcoPageInfo

Metadata for one Pco page.

Type Aliases

PcoArray

A Pco-encoded Vortex array.