Struct VectorTopKScanNode 

pub struct VectorTopKScanNode {
    pub alias: String,
    pub labels: Vec<String>,
    pub property: String,
    pub query: Expression,
    pub limit: u32,
}

Fields

alias: String

labels: Vec<String>

property: String

query: Expression

limit: u32

Trait Implementations

impl Clone for VectorTopKScanNode

fn clone(&self) -> VectorTopKScanNode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for VectorTopKScanNode

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

Formats the value using the given formatter.

impl ExecutionPlan for VectorTopKScanNode

fn execute<'a>( &'a self, ctx: &'a ExecutionContext<'a>, ) -> Result<Box<dyn Iterator<Item = Result<Record, Error>> + 'a>, Error>

fn estimate_cardinality(&self, ctx: &ExecutionContext<'_>) -> usize

估算该操作的输出基数