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https://issues.apache.org/jira/browse/SPARK-35622?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17363605#comment-17363605
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xiepengjie commented on SPARK-35622:
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[~hyukjin.kwon] [~dc-heros]， Sorry, I was on vacation last week and did not
reply to you，[~dc-heros] ,thanks for your test.
I would like to work on it.
> DataFrame's count function do not need groupBy and avoid shuffle
> ----------------------------------------------------------------
>
> Key: SPARK-35622
> URL: https://issues.apache.org/jira/browse/SPARK-35622
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.1.2
> Reporter: xiepengjie
> Priority: Major
>
> Use `df.rdd.count()` replace `df.count()`.
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