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https://issues.apache.org/jira/browse/SPARK-20763?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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liuxian updated SPARK-20763:
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    Summary: The function of  `month` and `day` rerurn a value is not we 
expected  (was: The  return  value of  `month` and `day` is not we expected)

> The function of  `month` and `day` rerurn a value is not we expected
> --------------------------------------------------------------------
>
>                 Key: SPARK-20763
>                 URL: https://issues.apache.org/jira/browse/SPARK-20763
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 2.2.0
>            Reporter: liuxian
>            Priority: Minor
>
> spark-sql>select month("1582-09-28");
> spark-sql>10
> For this case, the expected result is 9, but it is 10.
> spark-sql>select day("1582-04-18");
> spark-sql>28
> For this case, the expected result is 18, but it is 28.



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