Hi all, I'd like to work on https://github.com/apache/iotdb/issues/17337, which adds support for GROUP BY ALL syntax in Table Model relational queries. This feature infers grouping keys from non-aggregate, non-window expressions in the SELECT list, improving query ergonomics for common aggregation patterns. I've submitted a linked PR https://github.com/apache/iotdb/pull/17380 with an implementation covering grammar changes, semantic analysis, SQL formatting, and unit tests. The PR also maintains consistency with existing date_bin_gapfill(...) behavior. Feedback and reviews are very welcome!
Best regards, Zhenyu Liu
