tustvold commented on code in PR #4520:
URL: https://github.com/apache/arrow-rs/pull/4520#discussion_r1263738458
##########
arrow-string/src/length.rs:
##########
@@ -88,6 +88,30 @@ where
unary_offsets!(array, T::DATA_TYPE, |x| x)
}
+fn length_list_fixed_size<T>(array: &dyn Array, length: i32) -> ArrayRef
+where
+ T: ArrowPrimitiveType,
+ T::Native: OffsetSizeTrait,
+{
+ let array = array.as_any().downcast_ref::<FixedSizeListArray>().unwrap();
+ let null_bit_buffer = array.nulls().map(|b| b.inner().sliced());
+ let length_list = array.len();
+ let buffer = Buffer::from_vec(vec![length; length_list]);
+
+ let data = unsafe {
Review Comment:
Perhaps we could use PrimitiveArray::new here?
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