Hi all, I'm Zihan Dai, a GSoC 2026 contributor working on the ThingsBoard-on-IoTDB Table Mode integration. I have a small query-correctness fix that has been open for a while, and I'd be grateful if a committer could take a look -- or approve the CI run so the checks can execute:
PR #17411 -- Fix last_by returning a null row after deleting all table data (issue #16985): https://www.google.com/url?q=https://github.com/apache/iotdb/pull/17411&source=gmail&ust=1784438979404000&sa=E The root cause: when a value chunk is fully deleted, it was not being marked as "modified", so the last-value cache kept serving the deleted row and last_by returned it instead of an empty result. The fix is small and coordinated across the delete-recognition and last-query paths, plus two integration tests reproducing the full-delete scenario. I have just rebased it onto current master, so it is conflict-free. Thank you for your time! Best regards, Zihan Dai
