Enum DenseVectorQuantization 

pub enum DenseVectorQuantization {
    F32,
    F16,
    UInt8,
}

Storage quantization for dense vector elements

Controls the precision of each vector coordinate in .vectors files. Lower precision reduces storage and memory bandwidth; scoring uses native-precision SIMD (no dequantization on the hot path).

Variants

F32

32-bit IEEE 754 float (4 bytes/dim) — full precision, baseline

F16

16-bit IEEE 754 half-float (2 bytes/dim) — <0.1% recall loss for normalized embeddings

UInt8

8-bit unsigned scalar quantization (1 byte/dim) — maps [-1,1] → [0,255]

Implementations

impl DenseVectorQuantization

pub fn element_size(self) -> usize

Bytes per element for this quantization type

pub fn tag(self) -> u8

Wire format tag (stored in .vectors header)

pub fn from_tag(tag: u8) -> Option<Self>

Decode wire format tag

Trait Implementations

impl Clone for DenseVectorQuantization

fn clone(&self) -> DenseVectorQuantization

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DenseVectorQuantization

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

Formats the value using the given formatter.

impl Default for DenseVectorQuantization

fn default() -> DenseVectorQuantization

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for DenseVectorQuantization

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for DenseVectorQuantization

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl Serialize for DenseVectorQuantization

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for DenseVectorQuantization

impl Eq for DenseVectorQuantization

impl StructuralPartialEq for DenseVectorQuantization