alamb commented on code in PR #4402:
URL: https://github.com/apache/arrow-rs/pull/4402#discussion_r1226646645
##########
arrow-arith/src/boolean.rs:
##########
@@ -314,7 +312,7 @@ pub fn not(left: &BooleanArray) -> Result<BooleanArray,
ArrowError> {
/// ```
pub fn is_null(input: &dyn Array) -> Result<BooleanArray, ArrowError> {
let values = match input.nulls() {
- None => NullBuffer::new_null(input.len()).into_inner(),
+ None => BooleanBuffer::new_unset(input.len()),
Review Comment:
This is very clever
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