Enum ForkLocalIndexKind 

#[non_exhaustive]
pub enum ForkLocalIndexKind {
    ScalarBtree,
    Sorted,
    VidUid,
    Vector,
    FullText,
    Sparse,
}

Phase 5a: tag for the fork-local index registry on ForkScope. Phase 5b extends with Vector and FullText for lossy fusion.

#[non_exhaustive] so additional kinds (e.g. inverted-set, JSON path) can land additively without breaking match sites.

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.

ScalarBtree

Scalar BTree on a property — union fusion (Phase 5a-impl).

Sorted

Sorted on a property (range / ORDER BY) — k-way merge fusion (Phase 5a-impl).

VidUid

VID/UID lookup index — fork-first fusion (Phase 5a-impl).

Vector

Vector (IVF/HNSW) index — top-k merge + rerank fusion (Phase 5b).

FullText

Lance native FTS / inverted index — RRF fusion (Phase 5b).

Sparse

Learned-sparse (SPLADE) dot-product index — SparseDot rerank fusion (issue #95 Task #4).

v1 retrieval on a fork is a brute-force branch scan re-scored by sparse_dot (see crate::storage::StorageManager::sparse_search); this variant is a planner/EXPLAIN marker that switches uni.sparse.query to the fused operator. A dedicated fork-local sparse postings dataset (Approach B) is deferred behind the M5 benchmark.

Trait Implementations

impl Clone for ForkLocalIndexKind

fn clone(&self) -> ForkLocalIndexKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ForkLocalIndexKind

impl Debug for ForkLocalIndexKind

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

Formats the value using the given formatter.

impl Eq for ForkLocalIndexKind

impl Hash for ForkLocalIndexKind

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ForkLocalIndexKind

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