Function max

datafusion/expr/src/test/function_stub.rs:363–372

(expr: Expr)

create_func!(Max, max_udaf);

pub fn max(expr: Expr) -> Expr {
    Expr::AggregateFunction(AggregateFunction::new_udf(
        max_udaf(),
        vec![expr],
        false,
        None,
        vec![],
        None,
    ))
}

/// Testing stub implementation of MAX aggregate
#[derive(PartialEq, Eq, Hash)]