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https://issues.apache.org/jira/browse/SPARK-22326?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16213666#comment-16213666
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Apache Spark commented on SPARK-22326:
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User 'wzhfy' has created a pull request for this issue:
https://github.com/apache/spark/pull/19539
> Remove unnecessary hashCode and equals methods
> ----------------------------------------------
>
> Key: SPARK-22326
> URL: https://issues.apache.org/jira/browse/SPARK-22326
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.3.0
> Reporter: Zhenhua Wang
>
> Plan equality should be computed by canonicalized, so we can remove
> unnecessary hashCode and equals methods.
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