Enum IndexKind 

#[non_exhaustive]
pub enum IndexKind {
    Hnsw,
    Vamana,
    DiskVamana,
    Ivf,
    Colbert,
}

The index structure a collection is served by (ADR-0007). The default is the in-memory HNSW graph; the others are the Phase 2 memory-frugal options.

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

In-memory HNSW graph: lowest latency, fits in RAM. The default.

Vamana

In-memory Vamana (DiskANN) graph.

DiskVamana

Disk-resident Vamana: PQ codes in RAM, graph + full vectors on SSD.

Ivf

Inverted-file index with coarse Voronoi partitioning.

Colbert

ColBERTv2/PLAID compressed token-pool index for late-interaction (multivector) collections: centroid + residual-PQ codes in RAM with centroid-pruned candidate generation (ADR-0034). Valid only for a multivector collection.

Trait Implementations

impl Clone for IndexKind

fn clone(&self) -> IndexKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for IndexKind

impl Debug for IndexKind

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

Formats the value using the given formatter.

impl Default for IndexKind

fn default() -> IndexKind

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for IndexKind

fn deserialize<__D>( __deserializer: __D, ) -> Result<IndexKind, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for IndexKind

impl PartialEq for IndexKind

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

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for IndexKind