Module sparse_tile 

Sparse tile payload — coordinate list + per-attribute columns.

Storage layout is column-major so per-attribute codecs (nodedb-codec) can be applied without a transpose. Dimension values are dictionary-encoded inline: rare in genomic / single-cell workloads that have many repeats per tile.

Structs

DimDict

Per-dim dictionary: distinct values seen, and one index per cell pointing into the dictionary. Index width is selected by callers when picking the codec.

SparseRow

All row-level data passed to SparseTileBuilder::push_row.

SparseTile

Sparse tile payload.

SparseTileBuilder

Streaming builder. Folds (coord, attrs) pairs into the tile body and the MBR in one pass.

Enums

RowKind

Per-row lifecycle classification for a SparseTile row.