Jefffrey commented on PR #9275:
URL: https://github.com/apache/arrow-rs/pull/9275#issuecomment-3803662451
Thanks for volunteering to pick up this issue. I'm concerned this doesn't
properly address the root cause; for example this case would also fail:
```rust
#[test]
fn test_nested_null_list() {
let null_array = Arc::new(NullArray::new(3));
// [[NULL], [], [NULL, NULL]]
let list: ArrayRef = Arc::new(ListArray::new(
Field::new_list_field(DataType::Null, true).into(),
OffsetBuffer::from_lengths(vec![1, 0, 2]),
null_array,
None,
));
let converter =
RowConverter::new(vec![SortField::new(list.data_type().clone())]).unwrap();
let rows = converter.convert_columns(&[Arc::clone(&list)]).unwrap();
let back = converter.convert_rows(&rows).unwrap();
assert_eq!(&list, &back[0]);
}
```
Can check my comments on the original issue to perhaps try do deeper/root
cause fix.
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