Struct ExplainAccessDecision 

pub struct ExplainAccessDecision {
    pub selected: ExplainSelectedAccess,
    pub candidates: Vec<ExplainAccessCandidate>,
    pub alternatives: Vec<ExplainEligibleAlternative>,
    pub rejections: Vec<ExplainRejectedIndex>,
    pub residual: ExplainResidualSummary,
    pub cardinality_evidence_state: &'static str,
}

Stable JSON-facing access-decision projection for logical EXPLAIN.

This DTO is derived from the planner-owned access-choice snapshot and the selected explain access path. It is not an optimizer model and does not participate in access selection.

Fields

selected: ExplainSelectedAccess

Selected access path summary.

candidates: Vec<ExplainAccessCandidate>

Planner candidate summaries recorded for the selected access family.

alternatives: Vec<ExplainEligibleAlternative>

Eligible alternatives not selected by the planner.

rejections: Vec<ExplainRejectedIndex>

Rejected index candidates and planner-owned reason strings.

residual: ExplainResidualSummary

Residual-work summary for the selected route when available.

cardinality_evidence_state: &'static str

Availability class of exact cardinality evidence used at selection time.

Trait Implementations

impl Clone for ExplainAccessDecision

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ExplainAccessDecision

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

Formats the value using the given formatter.

impl Display for ExplainAccessDecision

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

Formats the value using the given formatter.

impl Eq for ExplainAccessDecision

impl PartialEq for ExplainAccessDecision

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ExplainAccessDecision