Struct lance_index::pb::Pq

pub struct Pq {
    pub num_bits: u32,
    pub num_sub_vectors: u32,
    pub dimension: u32,
    pub codebook: Vec<f32>,
    pub codebook_tensor: Option<Tensor>,
}

Product Quantization.

Fields

num_bits: u32

The number of bits to present a centroid.

num_sub_vectors: u32

Number of sub vectors.

dimension: u32

Vector dimension

codebook: Vec<f32>

Codebook. dimension * 2 ^ num_bits of float32s.

codebook_tensor: Option<Tensor>

Tensor of codebook. 2 ^ num_bits * dimension of floats.

Trait Implementations

impl Clone for Pq

fn clone(&self) -> Pq

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Pq

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Pq

fn default() -> Self

Returns the “default value” for a type.

impl Message for Pq

fn encoded_len(&self) -> usize

Returns the encoded length of the message without a length delimiter.

fn clear(&mut self)

Clears the message, resetting all fields to their default.

fn encode<B>(&self, buf: &mut B) -> Result<(), EncodeError>

where B: BufMut, Self: Sized,

Encodes the message to a buffer.

fn encode_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message to a newly allocated buffer.

fn encode_length_delimited<B>(&self, buf: &mut B) -> Result<(), EncodeError>

where B: BufMut, Self: Sized,

Encodes the message with a length-delimiter to a buffer.

fn encode_length_delimited_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message with a length-delimiter to a newly allocated buffer.

fn decode<B>(buf: B) -> Result<Self, DecodeError>

where B: Buf, Self: Default,

Decodes an instance of the message from a buffer.

fn decode_length_delimited<B>(buf: B) -> Result<Self, DecodeError>

where B: Buf, Self: Default,

Decodes a length-delimited instance of the message from the buffer.

fn merge<B>(&mut self, buf: B) -> Result<(), DecodeError>

where B: Buf, Self: Sized,

Decodes an instance of the message from a buffer, and merges it into self.

fn merge_length_delimited<B>(&mut self, buf: B) -> Result<(), DecodeError>

where B: Buf, Self: Sized,

Decodes a length-delimited instance of the message from buffer, and merges it into self.

impl PartialEq for Pq

fn eq(&self, other: &Pq) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl TryFrom<&dyn ProductQuantizer> for Pq

type Error = Error

The type returned in the event of a conversion error.

fn try_from(pq: &dyn ProductQuantizer) -> Result<Self>

Performs the conversion.

impl StructuralPartialEq for Pq