[jira] [Commented] (SPARK-37376) Introduce a new DataSource V2 interface HasPartitionKey

["Apache Spark (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-37376?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17446222#comment-17446222 ] 

Apache Spark commented on SPARK-37376:
--------------------------------------

User 'sunchao' has created a pull request for this issue:
https://github.com/apache/spark/pull/34656

> Introduce a new DataSource V2 interface HasPartitionKey 
> --------------------------------------------------------
>
>                 Key: SPARK-37376
>                 URL: https://issues.apache.org/jira/browse/SPARK-37376
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>    Affects Versions: 3.3.0
>            Reporter: Chao Sun
>            Priority: Major
>
> One of the pre-requisite for the feature is to allow V2 input partitions to report their partition values to Spark, which can use them to compare if both sides of join are co-partitioned, and also optionally group input partitions together.



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