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Posted to jira@arrow.apache.org by "Michal Nowakiewicz (Jira)" <ji...@apache.org> on 2021/09/30 07:58:00 UTC

[jira] [Updated] (ARROW-14182) [C++][Compute] Hash Join performance improvement

     [ https://issues.apache.org/jira/browse/ARROW-14182?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michal Nowakiewicz updated ARROW-14182:
---------------------------------------
          Component/s: C++
        Fix Version/s: 7.0.0
    Affects Version/s: 6.0.0
               Labels: query-engine  (was: )

> [C++][Compute] Hash Join performance improvement
> ------------------------------------------------
>
>                 Key: ARROW-14182
>                 URL: https://issues.apache.org/jira/browse/ARROW-14182
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: C++
>    Affects Versions: 6.0.0
>            Reporter: Michal Nowakiewicz
>            Assignee: Michal Nowakiewicz
>            Priority: Major
>              Labels: query-engine
>             Fix For: 7.0.0
>
>
> Add micro-benchmarks for hash join exec node.
> Write a new implementation of the interface HashJoinImpl making sure that it is efficient for all types of join. Current implementation, based on unordered map, trades performance for a simpler code and is likely not as fast as it could be.



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