asubiotto commented on code in PR #9856:
URL: https://github.com/apache/arrow-rs/pull/9856#discussion_r3188811169
##########
arrow-select/src/interleave.rs:
##########
@@ -411,6 +417,70 @@ fn interleave_list<O: OffsetSizeTrait>(
Ok(Arc::new(list_array))
}
+/// Specialized [`interleave`] for [`RunArray`].
+fn interleave_run_end<R: RunEndIndexType>(
+ values: &[&dyn Array],
+ indices: &[(usize, usize)],
+) -> Result<ArrayRef, ArrowError> {
+ if indices.is_empty() {
+ return Ok(new_empty_array(values[0].data_type()));
+ }
+
+ let n = indices.len();
+ R::Native::from_usize(n).ok_or_else(|| {
Review Comment:
If selecting the `i16::MAX + 5`th value, I don't think you would be in the
`REE<i16>` function since the interleave is dispatched based on input type (and
`i16::MAX + 5` is not addressable).
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