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https://issues.apache.org/jira/browse/SPARK-42070?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gengliang Wang resolved SPARK-42070.
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Fix Version/s: 3.4.0
Resolution: Fixed
Issue resolved by pull request 39577
[https://github.com/apache/spark/pull/39577]
> Change the default value of argument of Mask udf from -1 to NULL
> ----------------------------------------------------------------
>
> Key: SPARK-42070
> URL: https://issues.apache.org/jira/browse/SPARK-42070
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 3.4.0
> Reporter: Vinod KC
> Assignee: Vinod KC
> Priority: Minor
> Fix For: 3.4.0
>
>
> In the udf 'mask', using -1 as ignore parameter in String type argument is
> not a standard way, hence, it is better to change the value of ignore
> argument from -1 to NULL.
> Note: SPARK-40687 , has recently implemented udf *mask* , which uses -1 as
> the default argument to ignore the masking option, As no Spark version
> release has occurred since then, this new change will not cause backward
> compatibility issues
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