Enum VecEncoding 

pub enum VecEncoding {
    F32,
    Sq8,
    F16,
}

In-cell encoding for DataType::Vector. Mirrors spg_sql::ast::VecEncoding — kept here so storage stays dep-free of spg-sql. The engine bridges between the two at DDL-execution time.

F32 is the pre-v6 default: each cell holds a raw Vec<f32>. Sq8 (v6.0.1) stores Sq8Vector { min, max, bytes: Vec<u8> } per cell; 4× compression vs F32 with recall@10 ≥ 0.95 on natural embeddings (Gaussian / unit-sphere corpora). F16 (v6.0.3, DDL keyword HALF) stores each element as IEEE-754 binary16; 2× compression and bit-exact dequantise.

Variants

F32

Sq8

F16

Trait Implementations

impl Clone for VecEncoding

fn clone(&self) -> VecEncoding

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for VecEncoding

impl Debug for VecEncoding

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

Formats the value using the given formatter.

impl Default for VecEncoding

fn default() -> VecEncoding

Returns the “default value” for a type.

impl Display for VecEncoding

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

Formats the value using the given formatter.

impl Eq for VecEncoding

impl PartialEq for VecEncoding

fn eq(&self, other: &VecEncoding) -> 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 StructuralPartialEq for VecEncoding