[GitHub] [arrow-datafusion] yjshen commented on issue #1572: Consolidate the N-way merging code and `SortPreservingMergeStream` (which has quite good tests of what is often quite tricky code, and it will be performance critical)

[GitBox]

yjshen commented on issue #1572:
URL: 
https://github.com/apache/arrow-datafusion/issues/1572#issuecomment-1013680446


   Also cc @houqp for more minds.


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