Enum VectorFilterStrategy 

#[non_exhaustive]
pub enum VectorFilterStrategy {
    PostFilter,
    PreFilterCTE,
}

Strategy for combining vector search and graph traversal filters (§5.3).

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.

PostFilter

Vector top-k′ from the index first, then discard what fails the filter.

Cheap when the filter is loose, because most of the k′ survives. Degrades when it is tight, and FilteredVectorSearch escalates rather than under-returning when it detects that it has.

PreFilterCTE

Candidate ids from the traversal first, then exact distances over just those rows.

Exact by construction — every candidate is scored, so nothing can fall off the end of a k′. A brute-force scan over F32_BLOB with no index, so it is priced by the candidate count.

Trait Implementations

impl Clone for VectorFilterStrategy

fn clone(&self) -> VectorFilterStrategy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for VectorFilterStrategy

impl Debug for VectorFilterStrategy

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for VectorFilterStrategy

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for VectorFilterStrategy

impl PartialEq for VectorFilterStrategy

fn eq(&self, other: &VectorFilterStrategy) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for VectorFilterStrategy

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for VectorFilterStrategy