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Posted to github@arrow.apache.org by "jychen7 (via GitHub)" <gi...@apache.org> on 2023/04/14 22:23:04 UTC

[GitHub] [arrow-datafusion] jychen7 commented on issue #6000: Push down limit to SortPreservingMergeExec and SortPreservingMergeStream

jychen7 commented on issue #6000:
URL: https://github.com/apache/arrow-datafusion/issues/6000#issuecomment-1509353600

   I try to implement the `fetch` in SortPreservingMergeStream. I read about Tournament_Tree, but not sure how to further improve it with TopK.
   
   It would be nice if have 2nd 👀 and see whether it is in a good direction.
   
   https://github.com/apache/arrow-datafusion/pull/6014/commits/b12e4546392e5dbb8a355b61373a3e1fc0c3f92d


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