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VectorIndex

hermes_core::segment

Enum VectorIndex 

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pub enum VectorIndex {
    BinaryIvf(Arc<MmapAnnIndex>),
    Tq {
        index: Arc<MmapAnnIndex>,
        codec: Arc<TqCodec>,
    },
    IvfTq {
        index: Arc<MmapAnnIndex>,
        codec: Arc<TqCodec>,
    },
}
Expand description

Production ANN payloads for float IVF-PQ and packed-binary IVF.

Raw flat vectors are stored separately in LazyFlatVectorData and accessed via mmap for reranking and merge. This enum only holds ANN indexes.

Both variants use the same validated mmap-backed run format. Corpus-sized columns stay in the file mapping; only the compact run directory is parsed.

Variants§

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BinaryIvf(Arc<MmapAnnIndex>)

Binary IVF (Hamming) payload.

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Tq

TurboQuant flat payload with its derived (training-free) codec.

Fields

§index: Arc<MmapAnnIndex>
§codec: Arc<TqCodec>
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IvfTq

IVF-TQ payload: trained coarse router, TurboQuant residual leaves.

Fields

§index: Arc<MmapAnnIndex>
§codec: Arc<TqCodec>

Implementations§

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impl VectorIndex

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pub fn estimated_heap_bytes(&self) -> usize

Estimate heap retained by this vector index. Corpus-sized ANN columns remain file-backed and are not included.

Trait Implementations§

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impl Clone for VectorIndex

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fn clone(&self) -> VectorIndex

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

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