tustvold commented on code in PR #2083:
URL: https://github.com/apache/arrow-rs/pull/2083#discussion_r922417705
##########
arrow/src/ipc/writer.rs:
##########
@@ -1784,4 +1784,52 @@ mod tests {
assert_eq!(record_batch_slice, deserialized_batch);
}
+
+ #[test]
+ fn truncate_ipc_struct_array() {
+ fn create_batch() -> RecordBatch {
+ let strings: StringArray = [Some("foo"), None, Some("bar"),
Some("baz")]
+ .into_iter()
+ .collect();
+ let ints: Int32Array =
+ [Some(0), Some(2), None, Some(1)].into_iter().collect();
+
+ let struct_array = StructArray::from(vec![
+ (
+ Field::new("s", DataType::Utf8, true),
+ Arc::new(strings) as ArrayRef,
+ ),
+ (
+ Field::new("c", DataType::Int32, false),
+ Arc::new(ints) as ArrayRef,
+ ),
+ ]);
+
+ let schema = Schema::new(vec![Field::new(
+ "struct_array",
+ struct_array.data_type().clone(),
+ true,
+ )]);
+
+ RecordBatch::try_new(Arc::new(schema),
vec![Arc::new(struct_array)]).unwrap()
+ }
+
+ let record_batch = create_batch();
+ let record_batch_slice = record_batch.slice(1, 2);
Review Comment:
Created https://github.com/apache/arrow-rs/pull/2085
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