fn attempt_join_simplification(
    inputs: &mut [MirRelationExpr],
    equivalences: &Vec<Vec<MirScalarExpr>>,
    implementation: &mut JoinImplementation,
    let_replacements: &BTreeMap<LocalId, Vec<Replacement>>,
    gets_behind_gets: &BTreeMap<LocalId, Vec<(Id, Vec<MirScalarExpr>)>>,
)
Expand description

Attempt to simplify the join using local information and let bindings.