Struct DiskAnnIndex 

pub struct DiskAnnIndex { /* private fields */ }

DiskANN index with Vamana graph + optional PQ + mmap persistence

Implementations

impl DiskAnnIndex

pub fn new(config: DiskAnnConfig) -> Self

Create a new DiskANN index

pub fn insert(&mut self, id: String, vector: Vec<f32>) -> Result<()>

Insert a vector with a string ID

pub fn insert_batch(&mut self, entries: Vec<(String, Vec<f32>)>) -> Result<()>

Insert a batch of vectors

pub fn build(&mut self) -> Result<()>

Build the index (must be called after all inserts, before search)

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

Search for k nearest neighbors

pub fn count(&self) -> usize

Get the number of vectors in the index

pub fn delete(&mut self, id: &str) -> Result<bool>

Delete a vector by ID (marks as deleted, doesn’t rebuild graph)

pub fn save(&self, dir: &Path) -> Result<()>

Save index to disk

pub fn load(dir: &Path) -> Result<Self>

Load index from disk with memory-mapped vectors