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https://issues.apache.org/jira/browse/SPARK-25469?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16621462#comment-16621462
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Hyukjin Kwon commented on SPARK-25469:
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Please fill the JIRA description
> Eval method of Concat expression should call pattern matching only once
> -----------------------------------------------------------------------
>
> Key: SPARK-25469
> URL: https://issues.apache.org/jira/browse/SPARK-25469
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 2.4.0, 3.0.0
> Reporter: Marek Novotny
> Priority: Major
>
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