Struct MultiWayJoinOp 

pub struct MultiWayJoinOp {
    pub inputs: Vec<LogicalOperator>,
    pub conditions: Vec<JoinCondition>,
    pub shared_variables: Vec<String>,
}

Multi-way join for worst-case optimal joins (leapfrog).

Unlike binary JoinOp, this joins 3+ relations simultaneously using the leapfrog trie join algorithm. Preferred for cyclic patterns (triangles, cliques) where cascading binary joins hit O(N^2).

Fields

inputs: Vec<LogicalOperator>

Input relations (one per relation in the join).

conditions: Vec<JoinCondition>

All pairwise join conditions.

shared_variables: Vec<String>

Variables shared across multiple inputs (intersection keys).

Trait Implementations

impl Clone for MultiWayJoinOp

fn clone(&self) -> MultiWayJoinOp

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MultiWayJoinOp

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

Formats the value using the given formatter.