X-Lemon-X opened a new pull request, #47270: URL: https://github.com/apache/arrow/pull/47270
### Rationale for this change - Lack of multi threading inputs support (batches were incoming not in order if they were ordered) with nodes like ScalarAggregateNode , GroupByNode and SortedMergeNode, previously resolved by disabling multi threading when using them. - Lack of ordering information on output of nodes ScalarAggregateNode and GroupByNode when input was ordered. ### What changes are included in this PR? - added sequencer to input of ScalarAggregateNode and GroupByNode, (enables only it self when input is ordered). - added sequencer to all inputs of SortedMergeNode - added support for propagate ordering to ScalarAggregateNode and GroupByNode. ### Are these changes tested? Yes ### Are there any user-facing changes? Yes. Users of those node must assert ordering on input where apropriate. -- 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: github-unsubscr...@arrow.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
