Struct PQIndex 

pub struct PQIndex { /* private fields */ }

PQ-based index for compressed vector search

Implementations

impl PQIndex

pub fn new( config: PQConfig, dimension: usize, store_originals: bool, ) -> Result<Self, String>

Create a new PQ index

pub fn train(&self, vectors: &[Vector]) -> Result<(), String>

Train the index on vectors

pub fn is_trained(&self) -> bool

Check if trained

pub fn add(&self, vectors: Vec<Vector>) -> Result<usize, String>

Add vectors to the index

pub fn remove(&self, ids: &[VectorId]) -> usize

Remove vectors from the index

pub fn search( &self, query: &[f32], k: usize, ) -> Result<Vec<PQSearchResult>, String>

Search for nearest neighbors

pub fn len(&self) -> usize

Get number of indexed vectors

pub fn is_empty(&self) -> bool

Check if empty

pub fn compression_ratio(&self) -> f32

Get compression ratio

pub fn decode(&self, id: &VectorId) -> Result<Vec<f32>, String>

Decode a vector from its codes