Enum IndexAlgorithm 

#[non_exhaustive]
pub enum IndexAlgorithm {
    Hnsw,
    Flat,
}

ANN index algorithm selector.

Hnsw builds the hierarchical navigable small world graph (linear scan only on the bottom-most candidate set; sub- linear elsewhere). Flat runs a brute-force scan against every stored vector. The two are mostly interchangeable from the caller’s perspective; the difference shows up at large corpora where Hnsw keeps O(log N) traversal cost and Flat is O(N). Today only the turbovec codec path honours Flat (the brute SIMD scan in crate::turbo_index::TurboTable); non-turbovec codecs fall back to Hnsw regardless of the requested algorithm.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Hnsw

Hierarchical navigable small world graph (default).

Flat

Brute-force linear scan over every stored vector.

Trait Implementations

impl Clone for IndexAlgorithm

fn clone(&self) -> IndexAlgorithm

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for IndexAlgorithm

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

Formats the value using the given formatter.

impl Default for IndexAlgorithm

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for IndexAlgorithm

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for IndexAlgorithm

fn eq(&self, other: &IndexAlgorithm) -> 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 IndexAlgorithm

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 IndexAlgorithm

impl Eq for IndexAlgorithm

impl StructuralPartialEq for IndexAlgorithm