Enum FusionTermination 

pub enum FusionTermination {
    StableBound,
    ListsExhausted,
    BudgetFullMaterialization,
    WindowUnproven,
    ApproximateCandidates,
}

How the widening loop completed.

Variants

StableBound

Bounds proved that no unseen candidate could change the ordered top-k.

ListsExhausted

Both complete lists fit in the current round.

BudgetFullMaterialization

The round cap fired, then full lists were materialized for correctness.

WindowUnproven

A bounded window could not be proved stable; the caller must widen it.

ApproximateCandidates

Returned an approximate candidate union without certifying unseen rows.

Trait Implementations

impl Clone for FusionTermination

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for FusionTermination

impl Debug for FusionTermination

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

Formats the value using the given formatter.

impl Eq for FusionTermination

impl PartialEq for FusionTermination

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for FusionTermination