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https://issues.apache.org/jira/browse/SPARK-28581?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dongjoon Hyun resolved SPARK-28581.
-----------------------------------
       Resolution: Fixed
    Fix Version/s: 3.0.0

Issue resolved by pull request 25314
[https://github.com/apache/spark/pull/25314]

> Replace _FUNC_ in UDF ExpressionInfo
> ------------------------------------
>
>                 Key: SPARK-28581
>                 URL: https://issues.apache.org/jira/browse/SPARK-28581
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 3.0.0
>            Reporter: Yuming Wang
>            Assignee: Yuming Wang
>            Priority: Major
>             Fix For: 3.0.0
>
>
> This issue aims to move {{replaceFunctionName(usage: String, functionName: 
> String)}} from {{DescribeFunctionCommand}} to {{ExpressionInfo}} in order to 
> make {{ExpressionInfo}} returns actual name instead of placeholder. We can 
> get {{ExpressionInfo}}s directly through 
> {{SessionCatalog.lookupFunctionInfo}} API and get the real names.



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