Function plan_join_identity

src/sql/src/plan/query.rs:2220–2225

()

}

fn plan_join_identity() -> (HirRelationExpr, Scope) {
    let typ = SqlRelationType::new(vec![]);
    let expr = HirRelationExpr::constant(vec![vec![]], typ);
    let scope = Scope::empty();
    (expr, scope)
}

/// Describes how to execute a SELECT query.
///