Matt McCline commented on HIVE-15338:

 failure is very relevant.  Has exception from new error checking!  Broke 

  -- need to update Q file output.

> Wrong result from vectorized DATEDIFF with scalar parameter of type DATE
> ------------------------------------------------------------------------
>                 Key: HIVE-15338
>                 URL: https://issues.apache.org/jira/browse/HIVE-15338
>             Project: Hive
>          Issue Type: Bug
>          Components: Hive
>            Reporter: Matt McCline
>            Assignee: Matt McCline
>            Priority: Critical
>         Attachments: HIVE-15338.01.patch
> Vectorization in vectorized DATEDIFF when parameter is (date '12-01-16', 
> column). Jason noted that ('12-01-16', column) treats the first parameter as 
> a string and is a different case.
> Current Q file test vectorized_date_funcs.q DOES NOT test the date scalar 
> type case.

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