Struct VectorScanOp 

pub struct VectorScanOp {
    pub variable: String,
    pub index_name: Option<String>,
    pub property: String,
    pub label: Option<String>,
    pub query_vector: LogicalExpression,
    pub k: usize,
    pub metric: Option<VectorMetric>,
    pub min_similarity: Option<f32>,
    pub max_distance: Option<f32>,
    pub input: Option<Box<LogicalOperator>>,
}

Vector similarity scan operation.

Performs approximate nearest neighbor search using a vector index (HNSW) or brute-force search for small datasets. Returns nodes/edges whose embeddings are similar to the query vector.

Example GQL

MATCH (m:Movie)
WHERE vector_similarity(m.embedding, $query_vector) > 0.8
RETURN m.title

Fields

variable: String

Variable name to bind matching entities to.

index_name: Option<String>

Name of the vector index to use (None = brute-force).

property: String

Property containing the vector embedding.

label: Option<String>

Optional label filter (scan only nodes with this label).

query_vector: LogicalExpression

The query vector expression.

k: usize

Number of nearest neighbors to return.

metric: Option<VectorMetric>

Distance metric (None = use index default, typically cosine).

min_similarity: Option<f32>

Minimum similarity threshold (filters results below this).

max_distance: Option<f32>

Maximum distance threshold (filters results above this).

input: Option<Box<LogicalOperator>>

Input operator (for hybrid queries combining graph + vector).

Trait Implementations

impl Clone for VectorScanOp

fn clone(&self) -> VectorScanOp

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for VectorScanOp

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

Formats the value using the given formatter.