Struct ColdStore

pub struct ColdStore {
    codebook: PqCodebook,
    entries: Vec<ColdEntry>,
}

Cold store using PQ-encoded vectors.

Fields

codebook: PqCodebook

entries: Vec<ColdEntry>

Encoded vectors: (entity_id, space_id, timestamp, pq_codes).

Implementations

impl ColdStore

pub fn new(codebook: PqCodebook) -> Self

Create a cold store with a trained codebook.

pub fn put( &mut self, entity_id: u64, space_id: u32, timestamp: i64, vector: &[f32], )

Store a vector (encodes it with PQ).

pub fn get( &self, entity_id: u64, space_id: u32, timestamp: i64, ) -> Option<Vec<f32>>

Retrieve and decode a vector.

pub fn len(&self) -> usize

Number of stored entries.

pub fn is_empty(&self) -> bool

Whether the store is empty.

pub fn storage_bytes(&self) -> usize

Storage size in bytes (codes only, no overhead).

pub fn codebook(&self) -> &PqCodebook

Access the codebook.

pub fn search_adc(&self, query: &[f32], k: usize) -> Vec<(u64, i64, f32)>

Search using asymmetric distance computation.

Returns (entity_id, timestamp, distance) sorted by distance.