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https://issues.apache.org/jira/browse/SPARK-25098?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

ice bai updated SPARK-25098:
----------------------------
    Summary: UDF ‘Cast’ will return NULL when input string starts/ends with 
special character   (was: UDF ‘Cast’ return wrong result when input string 
starts/ends with special character )

> UDF ‘Cast’ will return NULL when input string starts/ends with special 
> character 
> ---------------------------------------------------------------------------------
>
>                 Key: SPARK-25098
>                 URL: https://issues.apache.org/jira/browse/SPARK-25098
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 2.3.0
>            Reporter: ice bai
>            Priority: Major
>
> UDF ‘Cast’ will return NULL when input string starts/ends with special 
> character,



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