lilianm commented on code in PR #8262:
URL: https://github.com/apache/arrow-rs/pull/8262#discussion_r2324703282
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parquet/src/arrow/async_writer/mod.rs:
##########
@@ -332,6 +350,35 @@ mod tests {
assert_eq!(to_write, read);
}
+ #[tokio::test]
+ async fn test_async_arrow_group_writer() {
+ let col = Arc::new(Int64Array::from_iter_values([1, 2, 3])) as
ArrayRef;
+ let to_write = RecordBatch::try_from_iter([("col", col)]).unwrap();
+
+ let mut buffer = Vec::new();
+ let mut writer = AsyncArrowWriter::try_new(&mut buffer,
to_write.schema(), None).unwrap();
+ let mut writers = writer.get_column_writers().await.unwrap();
+
+ for (field, column) in
to_write.schema().fields().iter().zip(to_write.columns()) {
+ for leaf in compute_leaves(field.as_ref(), column).unwrap() {
+ writers[0].write(&leaf).unwrap();
+ }
+ }
+
+ let columns: Vec<_> = writers.into_iter().map(|w|
w.close().unwrap()).collect();
+ writer.append_row_group(columns).await.unwrap();
Review Comment:
I have update test for cover this case.
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