kawadakk opened a new issue, #8533:
URL: https://github.com/apache/arrow-rs/issues/8533
**Describe the bug**
`arrow::compute::interleave` returns an error after arrow-rs 56.0.0 if a
struct array with no fields is provided.
**To Reproduce**
Add the following code to `arrow-select/src/interleave.rs`:
```rust
#[test]
fn test_struct_no_fields() {
let fields = Fields::empty();
let a = StructArray::try_new_with_length(fields.clone(), vec![], None,
10).unwrap();
let v = interleave(&[&a], &[(0, 0)]).unwrap();
assert_eq!(v.len(), 1);
assert_eq!(v.data_type(), &DataType::Struct(fields));
}
```
```text
thread 'interleave::tests::test_struct_no_fields' panicked at
arrow-select/src/interleave.rs:744:46:
called `Result::unwrap()` on an `Err` value: InvalidArgumentError("use
StructArray::try_new_with_length or StructArray::new_empty_fields to create a
struct array with no fields so that the length can be set correctly")
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
failures:
interleave::tests::test_struct_no_fields
```
**Expected behavior**
Not panicking
**Additional context**
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