Function max

pub fn max<T>(
    array: &PrimitiveArray<T>,
) -> Option<<T as ArrowPrimitiveType>::Native>
where
    T: ArrowNumericType,
    <T as ArrowPrimitiveType>::Native: PartialOrd,

Returns the maximum value in the array, according to the natural order. For floating point arrays any NaN values are considered to be greater than any other non-null value