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https://issues.apache.org/jira/browse/SPARK-28376?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16885428#comment-16885428
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Ryan Blue commented on SPARK-28376:
-----------------------------------
I don't think this is a regression. The linked issue was to automatically add
repartitioning to the SQL plan to avoid too many files, even with a local sort.
I think that this is no longer needed because we plan to do it in DSv2.
> Support to write sorted parquet files in each row group
> -------------------------------------------------------
>
> Key: SPARK-28376
> URL: https://issues.apache.org/jira/browse/SPARK-28376
> Project: Spark
> Issue Type: New Feature
> Components: Input/Output, Spark Core
> Affects Versions: 2.4.3
> Reporter: t oo
> Priority: Major
>
> this is for the ability to writeee parquet with sorteed values in each
> rowgroup
>
> see
> [https://stackoverflow.com/questions/52159938/cant-write-ordered-data-to-parquet-in-spark]
> [https://www.slideshare.net/RyanBlue3/parquet-performance-tuning-the-missing-guide]
> (slidee 26-27)
>
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