efegokdemir opened a new pull request, #11210: URL: https://github.com/apache/arrow-rs/pull/11210
## Which issue does this PR close? Closes #11191. ## Rationale for this change `variant_get` converted a missing shredded object field into `Variant::Null` instead of an Arrow SQL NULL when both shredded columns were null. ## What changes are included in this PR? - Track rows with both shredded columns absent when unshredding a requested Variant result. - Preserve explicit Variant nulls and empty shredded objects as valid values. - Add regression coverage for missing, explicit-null, and present shredded object fields. ## Are these changes tested? - `cargo test -p parquet-variant-compute` — passed (368 tests and 13 doctests) - `cargo clippy -p parquet-variant-compute --all-targets -- -D warnings` — passed - `cargo fmt --all -- --check` — passed - `git diff --check` — passed ## Are there any user-facing changes? Yes. Missing shredded object fields now preserve SQL NULL semantics when requested as Variant output; explicit Variant nulls remain valid Variant values. ## AI assistance OpenAI Codex assisted with reproducing the issue, implementing the focused fix, adding regression coverage, and running the validation above. The submitted changes were reviewed locally before submission. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
