Function try_primitive_array_min_max

datafusion/functions-nested/src/min_max.rs:223–237

Dispatches to a typed primitive min/max implementation, or returns `None` if the element type is not a primitive.

(
    list_array: &GenericListArray<O>,
    is_min: bool,
)

/// Dispatches to a typed primitive min/max implementation, or returns `None` if
/// the element type is not a primitive.
fn try_primitive_array_min_max<O: OffsetSizeTrait>(
    list_array: &GenericListArray<O>,
    is_min: bool,
) -> Option<Result<ArrayRef>> {
    macro_rules! helper {
        ($t:ty) => {
            return Some(primitive_array_min_max::<O, $t>(list_array, is_min))
        };
    }
    downcast_primitive! {
        list_array.value_type() => (helper),
        _ => {}
    }
    None
}

/// Threshold to switch from direct iteration to using `min` / `max` kernel from
/// `arrow::compute`. The latter has enough per-invocation overhead that direct