[jira] [Commented] (SPARK-39065) DS V2 Limit push-down should avoid out of memory

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

    [ https://issues.apache.org/jira/browse/SPARK-39065?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17529860#comment-17529860 ] 

Apache Spark commented on SPARK-39065:
--------------------------------------

User 'beliefer' has created a pull request for this issue:
https://github.com/apache/spark/pull/36405

> DS V2 Limit push-down should avoid out of memory
> ------------------------------------------------
>
>                 Key: SPARK-39065
>                 URL: https://issues.apache.org/jira/browse/SPARK-39065
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>    Affects Versions: 3.4.0
>            Reporter: jiaan.geng
>            Priority: Major
>
> Currently, Spark DS V2 supports push down Limit operator to data source.
> But the behavior only controlled by pushDownList option.
> If the limit is very large, then Executor will pull all the result set from data source.
> So it will cause the memory issue as you know.



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