Crate nodedb_vector 

Vector search primitives shared by Origin, Lite, and WASM: HNSW + Vamana indexes, scalar / SIMD distance kernels, the quantization codec frontier (SQ8, PQ, IVF-PQ, OPQ, RaBitQ, BBQ, Ternary BitNet 1.58, Binary), the VectorCollection runtime with mmap NVMe segments and background builder, and the cost-model planner inputs (target_recall, oversample, ef_search, query_dim, meta_token_budget, quantization).

This crate has no platform-required cargo features for v0.1.0 — SIMD kernels are gated by #[cfg(target_arch)] and dispatch happens at runtime. The optional acorn-baseline feature retains the old ACORN-1 filtered-traversal heuristic for benchmarking against NaviX; not for production use.

Re-exports

pub use error::VectorError;

pub use hnsw::HnswIndex;

pub use hnsw::SearchResult;

pub use quantize::Sq8Codec;

pub use adaptive_filter::FilterStrategy;

pub use adaptive_filter::FilterThresholds;

pub use adaptive_filter::adaptive_search;

pub use adaptive_filter::estimate_selectivity;

pub use adaptive_filter::select_strategy;

pub use builder::BuildSender;

pub use builder::CompleteReceiver;

pub use collection::BuildComplete;

pub use collection::BuildRequest;

pub use collection::StorageTier;

pub use collection::VectorCollection;

pub use flat::FlatIndex;

pub use index_config::IndexConfig;

pub use index_config::IndexType;

pub use ivf::IvfPqIndex;

pub use ivf::IvfPqParams;

Modules

adaptive_filter

Adaptive filtered search strategy selection.

batch_distance

Batch distance computation for HNSW neighbor selection.

builder

Background HNSW index builder thread.

codec_index

collection

delta

distance

Distance metrics for vector similarity search.

error

Vector engine error types.

flat

Flat (brute-force) vector index for small collections.

hnsw

hybrid

index_config

Vector index configuration: unified config for HNSW, HNSW+PQ, and IVF-PQ.

ivf

IVF-PQ index for billion-scale datasets.

matryoshka

Matryoshka adaptive-dim querying.

mmap_segment

multivec

navix

planner

quantize

sieve

vamana

Structs

HnswParams

HNSW index parameters shared between Origin and Lite.

Surrogate

Global surrogate identifier.

Enums

DistanceMetric

Distance metric selection.