connortsui20 commented on code in PR #8624:
URL: https://github.com/apache/arrow-rs/pull/8624#discussion_r2487933905
##########
arrow-array/src/array/fixed_size_list_array.rs:
##########
@@ -152,23 +168,88 @@ impl FixedSizeListArray {
ArrowError::InvalidArgumentError(format!("Size cannot be negative,
got {size}"))
})?;
- let len = match s {
- 0 => nulls.as_ref().map(|x| x.len()).unwrap_or_default(),
- _ => {
- let len = values.len() / s.max(1);
- if let Some(n) = nulls.as_ref() {
- if n.len() != len {
- return Err(ArrowError::InvalidArgumentError(format!(
- "Incorrect length of null buffer for
FixedSizeListArray, expected {} got {}",
- len,
- n.len(),
- )));
- }
+ let len = if s == 0 {
+ // Note that for degenerate and non-nullable `FixedSizeList`s, we
will set the length to
Review Comment:
I made the comment more descriptive (`size == 0`)
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