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Posted to github@arrow.apache.org by "Boulea7 (via GitHub)" <gi...@apache.org> on 2026/09/29 08:10:44 UTC

[PR] Fix sums of sliced run-end encoded arrays [arrow-rs]

Boulea7 opened a new pull request, #11283:
URL: https://github.com/apache/arrow-rs/pull/11283

   # Which issue does this PR close?
   
   Closes #11282.
   
   # Rationale for this change
   
   REE slices with a nonzero offset can produce incorrect sums or incorrect overflow results.
   
   # What changes are included in this PR?
   
   Compute run lengths from slice-relative endpoints, with regression coverage for slices, nulls and overflow.
   
   # Are these changes tested?
   
   `cargo test --locked -p arrow-arith --all-features`, crate clippy, workspace formatting and the affected file's spelling check pass.
   
   # Are there any user-facing changes?
   
   Correct sums and overflow detection for sliced REE arrays; no API changes.
   
   AI disclosure: Codex generated the fix, regression tests and PR text; Claude Code assisted investigation.
   


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Re: [PR] Fix sums of sliced run-end encoded arrays [arrow-rs]

Posted by "Jefffrey (via GitHub)" <gi...@apache.org>.
Jefffrey merged PR #11283:
URL: https://github.com/apache/arrow-rs/pull/11283


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Re: [PR] Fix sums of sliced run-end encoded arrays [arrow-rs]

Posted by "Jefffrey (via GitHub)" <gi...@apache.org>.
Jefffrey commented on PR #11283:
URL: https://github.com/apache/arrow-rs/pull/11283#issuecomment-5887226941

   thanks @Boulea7 


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