Jefffrey commented on code in PR #10730:
URL: https://github.com/apache/arrow-rs/pull/10730#discussion_r3809318824
##########
arrow-arith/src/arity.rs:
##########
@@ -273,8 +273,12 @@ where
if a.null_count() == 0 && b.null_count() == 0 {
try_binary_no_nulls(len, a, b, op)
} else {
- let nulls =
- NullBuffer::union(a.logical_nulls().as_ref(),
b.logical_nulls().as_ref()).unwrap();
+ // `null_count` is a physical count, so it can be non-zero for arrays
that
+ // have no logical nulls at all:
+ let Some(nulls) = NullBuffer::union(a.logical_nulls().as_ref(),
b.logical_nulls().as_ref())
Review Comment:
do we have a reproduction for this? im struggling to conceptualize a case
where we physically have nulls but logically dont have nulls 🤔
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