[jira] [Resolved] (ARROW-14165) [C++] Improve table sort performance #2

["David Li (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-14165?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

David Li resolved ARROW-14165.
------------------------------
    Fix Version/s: 6.0.0
       Resolution: Fixed

Issue resolved by pull request 11273
[https://github.com/apache/arrow/pull/11273]

> [C++] Improve table sort performance #2
> ---------------------------------------
>
>                 Key: ARROW-14165
>                 URL: https://issues.apache.org/jira/browse/ARROW-14165
>             Project: Apache Arrow
>          Issue Type: Task
>          Components: C++
>            Reporter: Antoine Pitrou
>            Assignee: Antoine Pitrou
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 6.0.0
>
>          Time Spent: 2h 50m
>  Remaining Estimate: 0h
>
> After ARROW-10898 is solved, it seems some performance may still be left on the table when merging sorted record batches. Two possible directions:
> * save on chunked indexing by relying on record batches and directly accessing subsequent columns in MultipleKeyComparator
> * use left-to-right "radix" merging



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