Enum RuntimeJoinAlgorithm 

pub enum RuntimeJoinAlgorithm {
    HashJoin,
    MergeJoin,
    NestedLoop,
}

Runtime join algorithm selection.

Variants

HashJoin

Hash join: O(N + M) for unsorted equality inputs.

MergeJoin

Merge join: O(N + M) when inputs are ordered on their keys.

NestedLoop

Nested loop for small inputs or conditions without equality keys.

Trait Implementations

impl Clone for RuntimeJoinAlgorithm

fn clone(&self) -> RuntimeJoinAlgorithm

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for RuntimeJoinAlgorithm

impl Debug for RuntimeJoinAlgorithm

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

Formats the value using the given formatter.

impl Eq for RuntimeJoinAlgorithm

impl PartialEq for RuntimeJoinAlgorithm

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for RuntimeJoinAlgorithm