viirya commented on code in PR #1550:
URL: https://github.com/apache/arrow-rs/pull/1550#discussion_r848648354
##########
arrow/src/ipc/reader.rs:
##########
@@ -1394,4 +1407,36 @@ mod tests {
let arrow_json: ArrowJson = serde_json::from_str(&s).unwrap();
arrow_json
}
+
+ #[test]
+ fn test_roundtrip_stream_nested_dict() {
+ let xs = vec!["AA", "BB", "AA", "CC", "BB"];
+ let dict = Arc::new(
+ xs.clone()
+ .into_iter()
+ .collect::<DictionaryArray<datatypes::Int8Type>>(),
+ );
+ let string_array: ArrayRef = Arc::new(StringArray::from(xs.clone()));
+ let struct_array = StructArray::from(vec![
+ (Field::new("f1.1", DataType::Utf8, false), string_array),
+ (
+ Field::new("f1.2_struct", dict.data_type().clone(), false),
+ dict.clone() as ArrayRef,
+ ),
Review Comment:
nit: as they are put under `f2_struct`, I guess `f2.1` and `f2.2_struct`
look more appropriate?
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