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From "Prasanth J (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-7067) Min() and Max() on Timestamp and Date columns for ORC returns wrong results
Date Thu, 15 May 2014 00:50:20 GMT

     [ https://issues.apache.org/jira/browse/HIVE-7067?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Prasanth J updated HIVE-7067:
-----------------------------

    Attachment: HIVE-7067.1.patch

> Min() and Max() on Timestamp and Date columns for ORC returns wrong results
> ---------------------------------------------------------------------------
>
>                 Key: HIVE-7067
>                 URL: https://issues.apache.org/jira/browse/HIVE-7067
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Prasanth J
>            Assignee: Prasanth J
>         Attachments: HIVE-7067.1.patch
>
>
> min() and max() of timestamp and date columns of ORC table returns wrong results. The
reason for that is when ORC creates object inspectors for date and timestamp it uses JAVA
primitive objects as opposed to WRITABLE objects. When get() is performed on java primitive
objects, a reference to the underlying object is returned whereas when get() is performed
on writable objects, a copy of the underlying object is returned. 
> Fix is to change the object inspector creation to return writable objects for timestamp
and date.



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