[GitHub] [arrow-datafusion] tustvold commented on issue #2148: Research performance improvements in N-way merging

["tustvold (via GitHub)" <gi...@apache.org>]

tustvold commented on issue #2148:
URL: https://github.com/apache/arrow-datafusion/issues/2148#issuecomment-1528859303

   Closing this ticket as I believe it is not tracking anything anymore, feel free to reopen if I am mistaken.
   
   SortPreservingMerge is now implemented as an n-way tournament tree making use of an order-preserving row encoding for multi-column sorts, and specialized cursors for single column sorts. I'm not aware of any major low-hanging fruit to make it run faster


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