Jefffrey commented on code in PR #11546:
URL: https://github.com/apache/arrow-rs/pull/11546#discussion_r4267040731
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arrow-data/src/transform/run.rs:
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@@ -230,6 +230,8 @@ pub fn build_extend(array: &ArrayData) -> Extend<'_> {
// Build run ends and values indices directly for batch processing
macro_rules! build_and_process_impl {
($run_end_type:ty) => {{
+ let source_buffer = &source_buffer.typed_data()
+ [source_buffer_offset..source_buffer_offset +
source_buffer_len];
Review Comment:
in practice it would be uncommon to have a runarray hit this case, of having
a runs child arraydata with an offset as it requires manual construction via
arraydata
- its similar to https://github.com/apache/arrow-rs/pull/11536
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