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https://issues.apache.org/jira/browse/SPARK-31372?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17097140#comment-17097140
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Apache Spark commented on SPARK-31372:
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User 'maropu' has created a pull request for this issue:
https://github.com/apache/spark/pull/28427
> Display expression schema for double checkout alias
> ---------------------------------------------------
>
> Key: SPARK-31372
> URL: https://issues.apache.org/jira/browse/SPARK-31372
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.1.0
> Reporter: jiaan.geng
> Assignee: jiaan.geng
> Priority: Major
> Fix For: 3.0.0
>
>
> Although SPARK-30184 Implement a helper method for aliasing functions,
> developers always forget to using this improvement.
> We need to add more powerful guarantees so that aliases outputed by built-in
> functions are correct.
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