Enum SpaceType 

pub enum SpaceType {
    CosineSimilarity,
    L2,
    InnerProduct,
}

Distance metric / space type for k-NN vector search.

Variants

CosineSimilarity

Cosine similarity. Best for normalized embeddings.

L2

Euclidean (L2) distance. Best for absolute spatial similarity.

InnerProduct

Inner product. Best for maximum inner product search (MIPS).

Implementations

impl SpaceType

pub fn as_str(&self) -> &'static str

Returns the OpenSearch space type string used in index mappings.

Trait Implementations

impl Clone for SpaceType

fn clone(&self) -> SpaceType

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SpaceType

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

Formats the value using the given formatter.

impl Default for SpaceType

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for SpaceType

fn eq(&self, other: &SpaceType) -> 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 Copy for SpaceType

impl Eq for SpaceType

impl StructuralPartialEq for SpaceType