timsaucer opened a new issue, #19292:
URL: https://github.com/apache/datafusion/issues/19292
### Describe the bug
If a `RecordBatch` has metadata on the schema level (not field level) it is
lost during FFI conversion.
### To Reproduce
```
#[test]
fn round_trip_record_batch_with_metadata() -> Result<()> {
let rb = record_batch!(
("a", Int32, vec![1, 2, 3]),
("b", Float64, vec![Some(4.0), None, Some(5.0)])
)?;
let schema =
rb.schema().as_ref().clone().with_metadata([("some_key".to_owned(),
"some_value".to_owned())].into()).into();
let rb = rb.with_schema(schema)?;
let ffi_rb = df_result!(record_batch_to_wrapped_array(rb.clone()))?;
let round_trip_rb = wrapped_array_to_record_batch(ffi_rb)?;
assert_eq!(rb, round_trip_rb);
Ok(())
}
```
### Expected behavior
Round trip of a record batch should return identical.
### Additional context
_No response_
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