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From "Aaron Tokhy (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-12502) to_date UDF cannot accept NULLs of VOID type
Date Fri, 11 Dec 2015 05:26:10 GMT

     [ https://issues.apache.org/jira/browse/HIVE-12502?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Aaron Tokhy updated HIVE-12502:
-------------------------------
    Attachment:     (was: HIVE-12502.1.patch)

> to_date UDF cannot accept NULLs of VOID type
> --------------------------------------------
>
>                 Key: HIVE-12502
>                 URL: https://issues.apache.org/jira/browse/HIVE-12502
>             Project: Hive
>          Issue Type: Bug
>          Components: UDF
>    Affects Versions: 1.0.0
>            Reporter: Aaron Tokhy
>            Assignee: Jason Dere
>            Priority: Trivial
>
> The to_date method behaves differently based off the 'data type' of null passed in.
> hive> select to_date(null);                   
> FAILED: SemanticException [Error 10014]: Line 1:7 Wrong arguments 'TOK_NULL': TO_DATE()
only takes STRING/TIMESTAMP/DATEWRITABLE types, got VOID
> hive> select to_date(cast(null as timestamp));
> OK
> NULL
> Time taken: 0.031 seconds, Fetched: 1 row(s)
> This appears to be a regression introduced in HIVE-5731.  The previous version of to_date
would not check the type:
> https://github.com/apache/hive/commit/09b6553214d6db5ec7049b88bbe8ff640a7fef72#diff-204f5588c0767cf372a5ca7e3fb964afL56



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