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https://issues.apache.org/jira/browse/SPARK-28935?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16919975#comment-16919975
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Liang-Chi Hsieh commented on SPARK-28935:
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Thanks for pinging me! I will look into this.
> Document SQL metrics for Details for Query Plan
> -----------------------------------------------
>
> Key: SPARK-28935
> URL: https://issues.apache.org/jira/browse/SPARK-28935
> Project: Spark
> Issue Type: Sub-task
> Components: Documentation
> Affects Versions: 3.0.0
> Reporter: Xiao Li
> Priority: Major
>
> [https://github.com/apache/spark/pull/25349] shows the query plans but it
> does not describe the meaning of each metric in the plan. For end users, they
> might not understand the meaning of the metrics we output.
>
> !https://user-images.githubusercontent.com/7322292/62421634-9d9c4980-b6d7-11e9-8e31-1e6ba9b402e8.png!
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