tobixdev opened a new issue, #8947:
URL: https://github.com/apache/arrow-rs/issues/8947
**Describe the bug**
The `take` implementation for `DataType::FixedSizeBinary` does not consider
the nullability of indices. If an index is null, the output value of the kernel
should also be null. This is not the case for fixed size binary arrays.
**To Reproduce**
```rust
#[test]
fn test_take_fixed_size_binary_with_nulls_indices() {
let fsb = FixedSizeBinaryArray::try_from_sparse_iter_with_size(
[
Some(vec![0x01, 0x01, 0x01, 0x01]),
Some(vec![0x02, 0x02, 0x02, 0x02]),
Some(vec![0x03, 0x03, 0x03, 0x03]),
Some(vec![0x04, 0x04, 0x04, 0x04]),
]
.into_iter(),
4,
)
.unwrap();
// The two middle indices are null -> Should be null in the output.
let indices = UInt32Array::from(vec![Some(0), None, None, Some(3)]);
let result = take_fixed_size_binary(&fsb, &indices, 4).unwrap();
assert_eq!(result.len(), 4);
assert_eq!(result.null_count(), 2); // <---- Returns 0
assert_eq!(
result.nulls().unwrap().iter().collect::<Vec<_>>(),
vec![true, false, false, true]
);
}
```
**Expected behavior**
2 Null values in the result
**Additional context**
Surfaced while looking at https://github.com/apache/datafusion/issues/19067
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