Struct DispatchPlan 

pub struct DispatchPlan {
    pub primary: IndexFamily,
    pub primary_cost: f64,
    pub primary_recall: f32,
    pub fallbacks: Vec<CostEstimate>,
    pub workload: WorkloadProfile,
}

Output of OptimizerDispatcher::pick_plan: a primary + ordered fallbacks.

Fields

primary: IndexFamily

Primary family the dispatcher recommends.

primary_cost: f64

Predicted cost of the primary in abstract units.

primary_recall: f32

Predicted recall of the primary in [0.0, 1.0].

fallbacks: Vec<CostEstimate>

Ordered fallback chain — try in order if recall trips threshold.

workload: WorkloadProfile

Snapshot of the workload that produced this plan.

Implementations

impl DispatchPlan

pub fn has_fallback(&self) -> bool

true if the plan has at least one fallback to try.

pub fn fallback_at(&self, idx: usize) -> Option<IndexFamily>

Return the family at fallback position idx, or None if exhausted.

Trait Implementations

impl Clone for DispatchPlan

fn clone(&self) -> DispatchPlan

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DispatchPlan

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

Formats the value using the given formatter.

impl PartialEq for DispatchPlan

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