Module segment 

Structs

AsyncSegmentReader

Async segment reader with lazy loading

AsyncStoreReader

Async document store reader - loads blocks on demand

EagerParallelStoreWriter

Parallel document store writer - compresses blocks immediately when queued

FieldStats

Field statistics for BM25F scoring

FlatVectorData

Flat vector data for brute-force search (accumulating state)

IVFRaBitQIndexData

IVF-RaBitQ index data with embedded centroids and codebook

MemoryBreakdown

Detailed memory breakdown by component

MergeStats

Statistics for merge operations

RawStoreBlock

Raw block info for store merging (without decompression)

ScaNNIndexData

ScaNN index data with embedded centroids and codebook

SegmentBuilder

Segment builder with optimized memory usage

SegmentBuilderConfig

Configuration for segment builder

SegmentBuilderStats

Statistics about segment builder state

SegmentFiles

Paths for segment files

SegmentId

Unique segment identifier (UUID7-like: 48-bit timestamp + 80-bit random)

SegmentMerger

Segment merger - merges multiple segments into one

SegmentMeta

Segment metadata

SegmentSnapshot

RAII guard that holds references to a snapshot of segments When dropped, releases all segment references

SegmentTracker

Tracks segment references and pending deletions

SparseIndex

Sparse vector index for a field: direct-indexed by dimension ID

StoreMerger

Store merger - concatenates compressed blocks from multiple stores without recompression

TrainedVectorStructures

Trained vector index structures for rebuilding segments with ANN indexes

VectorSearchResult

Vector search result with ordinal tracking for multi-value fields

Enums

VectorIndex

Vector index type - Flat, RaBitQ, IVF-RaBitQ, or ScaNN (IVF-PQ)

Constants

DEFAULT_DICT_SIZE

Default dictionary size (64KB is a good balance)

STORE_BLOCK_SIZE

Block size for document store (256KB for better compression) Larger blocks = better compression ratio but more memory per block load

Functions

delete_segment

Delete segment files from directory

deserialize_document

serialize_document

Type Aliases

SegmentReader

Alias for AsyncSegmentReader