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https://issues.apache.org/jira/browse/DRILL-7867?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17288953#comment-17288953
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ASF GitHub Bot commented on DRILL-7867:
---------------------------------------

luocooong commented on pull request #2179:
URL: https://github.com/apache/drill/pull/2179#issuecomment-784017530


   @vvysotskyi Thanks, `TestStringFunctions.testSplit` and 
`testSplitWithNullInput` is what I want. then we have done this by combine the 
null and non-null functions of split (Actually, by removed the Split class), 
right?


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> Allow using required arguments for functions with nullable parameters
> ---------------------------------------------------------------------
>
>                 Key: DRILL-7867
>                 URL: https://issues.apache.org/jira/browse/DRILL-7867
>             Project: Apache Drill
>          Issue Type: Improvement
>    Affects Versions: 1.19.0
>            Reporter: Vova Vysotskyi
>            Assignee: Vova Vysotskyi
>            Priority: Major
>             Fix For: 1.19.0
>
>
> When the user introduces only a single UDF that accepts nullable arguments, 
> it should be possible to use that UDF for arguments with the required data 
> mode.



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