westonpace commented on issue #36709: URL: https://github.com/apache/arrow/issues/36709#issuecomment-1644819551
To be clear, I fully support allowing for both ordered keys and ordered values within keys. I'm just explaining why the behavior is what it is today. I didn't expect things to be quite as predictable as you found them. However, I do verify that I get the same results you do. I wouldn't recommend putting too much faith in the way things happen to work now. The general expectation for group_by, in C++, is that it does not maintain order. There is no regression in place to verify whatever current ordering behavior you are seeing and it could very well change. If we want to explicitly maintain key and/or value order then I think those need to be features in their own right. -- 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]
