Rich-T-kid commented on code in PR #11906:
URL: https://github.com/apache/arrow-rs/pull/11906#discussion_r4372600643
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arrow/tests/array_transform.rs:
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@@ -1292,3 +1292,33 @@ fn test_interval_month_day_nano_aligned_to_8() {
// roundtripping through arraydata shouldnt panic
MutableArrayData::new(vec![&b], false, 0);
}
+
+#[test]
+fn test_interval_day_time_aligned_to_4() {
+ let ty = DataType::Interval(arrow_schema::IntervalUnit::DayTime);
+
+ // `IntervalDayTime` only requires 4-byte alignment, so this slice is valid
+ // even though it does not start on an 8-byte boundary
+ let buffer = Buffer::from_slice_ref([0i32, 1, 2, 3, 4]).slice(4);
+ let b = ArrayData::builder(ty)
+ .len(2)
+ .add_buffer(buffer)
+ .build()
+ .unwrap();
+
+ let mut mutable = MutableArrayData::new(vec![&b], true, 3);
+ mutable.try_extend(0, 0, 2).unwrap();
+ mutable.try_extend_nulls(1).unwrap();
+ let result = arrow_array::make_array(mutable.freeze());
+ let result = result
+ .as_any()
+ .downcast_ref::<arrow_array::IntervalDayTimeArray>()
+ .unwrap();
Review Comment:
```suggestion
let result = arrow_array::IntervalDayTimeArray::from(mutable.freeze());
```
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