Function mz_transform::semijoin_idempotence::list_replacements_join

fn list_replacements_join(
    inputs: &[MirRelationExpr],
    equivalences: &Vec<Vec<MirScalarExpr>>,
    gets_behind_gets: &BTreeMap<LocalId, Vec<(Id, Vec<MirScalarExpr>)>>
) -> Vec<Replacement>

Return a list of potential semijoin replacements for expr.