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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-7067) Min() and Max() on Timestamp and Date columns for ORC returns wrong results
Date Fri, 16 May 2014 10:58:24 GMT

    [ https://issues.apache.org/jira/browse/HIVE-7067?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13999181#comment-13999181
] 

Hive QA commented on HIVE-7067:
-------------------------------



{color:red}Overall{color}: -1 no tests executed

Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12644976/HIVE-7067.2.patch

Test results: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-Build/199/testReport
Console output: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-Build/199/console

Messages:
{noformat}
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12644976

> 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
>            Priority: Critical
>         Attachments: HIVE-7067.1.patch, HIVE-7067.2.patch, HIVE-7067.branch-13.2.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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