zhuqi-lucas commented on PR #18817:
URL: https://github.com/apache/datafusion/pull/18817#issuecomment-3566729760

   Thank you @xudong963 @suremarc, i do a lot of changes comparing our internal 
implementation in this PR, but i think in general the major design is similar 
to our internal version, the row group level reverse. But need to add more 
follow-up PRs to improve it further, for example, we should support customer 
output source, so that we can integrated it with ordered_partiton source, etc.


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