Struct CostEstimate 

pub struct CostEstimate {
    pub strategy: VectorFilterStrategy,
    pub candidates: CandidateCount,
    pub post_filter_bytes: usize,
    pub pre_filter_bytes: usize,
    pub k_prime: usize,
}

One planning decision, with the arithmetic that produced it (D-007).

Returned rather than only logged, so a caller — and more importantly a test — can assert on the choice instead of scraping tracing output.

Fields

strategy: VectorFilterStrategy

candidates: CandidateCount

post_filter_bytes: usize

Bytes PostFilter is estimated to touch.

pre_filter_bytes: usize

Bytes PreFilterCTE is estimated to touch.

k_prime: usize

The inflated k′ PostFilter would request.

Trait Implementations

impl Clone for CostEstimate

fn clone(&self) -> CostEstimate

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for CostEstimate

impl Debug for CostEstimate

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

Formats the value using the given formatter.

impl Eq for CostEstimate

impl PartialEq for CostEstimate

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for CostEstimate