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https://issues.apache.org/jira/browse/SPARK-15495?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15297488#comment-15297488
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Apache Spark commented on SPARK-15495:
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User 'clockfly' has created a pull request for this issue:
https://github.com/apache/spark/pull/13271
> Improve the output of explain for aggregate operator
> ----------------------------------------------------
>
> Key: SPARK-15495
> URL: https://issues.apache.org/jira/browse/SPARK-15495
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 1.6.2, 2.0.0
> Reporter: Sean Zhong
> Priority: Minor
>
> The current output of explain has several problems:
> 1. the output format is not consistent.
> 2. Some key information is missing.
> 3. For some nodes, the output message is too verbose.
> 4. We don't know the output fields of each physical fields.
> and ...
> I'll add more comments later.
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