Jefffrey commented on PR #5147:
URL: https://github.com/apache/arrow-rs/pull/5147#issuecomment-1832608022
> What ColumnOrder are we currently writing for these columns?
I'm not sure, actually. I tried running this test in arrow_writer/mod.rs on
master branch:
```rust
#[test]
fn test_123() {
let a = Int32Array::from(vec![1, 2, 3, 4, 5]);
let b = IntervalDayTimeArray::from(vec![0; 5]);
let batch = RecordBatch::try_from_iter(vec![
("a", Arc::new(a) as ArrayRef),
("b", Arc::new(b) as ArrayRef),
])
.unwrap();
let mut buf = Vec::with_capacity(1024);
let mut writer = ArrowWriter::try_new(&mut buf, batch.schema(),
None).unwrap();
writer.write(&batch).unwrap();
writer.close().unwrap();
let bytes = Bytes::from(buf);
let options = ReadOptionsBuilder::new().with_page_index().build();
let reader = SerializedFileReader::new_with_options(bytes,
options).unwrap();
dbg!(reader.metadata().file_metadata().column_orders());
}
```
Running:
```shell
arrow-rs$ cargo test -p parquet --lib arrow::arrow_writer::tests::test_123
-- --nocapture --exact
Blocking waiting for file lock on build directory
Compiling parquet v49.0.0 (/home/jeffrey/Code/arrow-rs/parquet)
Finished test [unoptimized + debuginfo] target(s) in 11.49s
Running unittests src/lib.rs
(/media/jeffrey/1tb_860evo_ssd/.cargo_target_cache/debug/deps/parquet-a4f7a499e85a325c)
running 1 test
[parquet/src/arrow/arrow_writer/mod.rs:2760]
reader.metadata().file_metadata().column_orders() = None
test arrow::arrow_writer::tests::test_123 ... ok
test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 667 filtered
out; finished in 0.00s
```
Even when I change it to only write the Int32Array, it is still none.
Not sure if I'm doing something wrong here?
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