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Posted to issues@spark.apache.org by "ice bai (JIRA)" <ji...@apache.org> on 2018/08/13 07:49:00 UTC
[jira] [Updated] (SPARK-25098) ‘Cast’ will return NULL when input string starts/ends with special character
[ https://issues.apache.org/jira/browse/SPARK-25098?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
ice bai updated SPARK-25098:
----------------------------
Summary: ‘Cast’ will return NULL when input string starts/ends with special character (was: UDF ‘Cast’ will return NULL when input string starts/ends with special character )
> ‘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, but hive doesn't.
> For examle, we get hour from a string ends with a blank :
> hive：
> ```
> hive> select hour('2018-07-27 17:20:07 ');//end with a blank
> OK
> 17
> ```
> spark-sql:
> ```
> spark-sql> select hour('2018-07-27 17:20:07 ');//end with a blank
> NULL
> ```
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