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Posted to issues@spark.apache.org by "Bruce Robbins (Jira)" <ji...@apache.org> on 2022/01/04 00:31:00 UTC

[jira] [Commented] (SPARK-37803) When deserializing an Orc struct, reuse the result row when possible

    [ https://issues.apache.org/jira/browse/SPARK-37803?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17468283#comment-17468283 ] 

Bruce Robbins commented on SPARK-37803:
---------------------------------------

I will attempt a PR in the next few hours (waiting for benchmarks).

> When deserializing an Orc struct, reuse the result row when possible
> --------------------------------------------------------------------
>
>                 Key: SPARK-37803
>                 URL: https://issues.apache.org/jira/browse/SPARK-37803
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 3.3.0
>            Reporter: Bruce Robbins
>            Priority: Major
>         Attachments: master_results.txt, pr_results.txt
>
>
> For each Orc struct, the Orc deserializer creates a new result row object.
> There are cases where the Orc deserializer can reuse the result row object, resulting in performance gains.



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