Mailing-List: contact dev-help@hive.apache.org; run by ezmlm
Precedence: bulk
Reply-To: dev@hive.apache.org
Date: Thu, 20 Feb 2014 11:52:20 +0000 (UTC)
From: "Puneet Gupta (JIRA)" <jira@apache.org>
To: hive-dev@hadoop.apache.org
Message-ID: <JIRA.12683746.1386641309660.72364.1392897140380@arcas>
In-Reply-To: <JIRA.12683746.1386641309660@arcas>
References: <JIRA.12683746.1386641309660@arcas>
Subject: [jira] [Commented] (HIVE-5994) ORC RLEv2 encodes wrongly for large
 negative BIGINTs  (64 bits )
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit


    [ https://issues.apache.org/jira/browse/HIVE-5994?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13906887#comment-13906887 ] 

Puneet Gupta commented on HIVE-5994:
------------------------------------

Hi Prasanth 
I also tested with the path mentioned in https://reviews.apache.org/r/16148/diff/ by merging the code in 0.12 .0 . It solves the issue :-).

Thanks for the help .


> ORC RLEv2 encodes wrongly for large negative BIGINTs  (64 bits )
> ----------------------------------------------------------------
>
>                 Key: HIVE-5994
>                 URL: https://issues.apache.org/jira/browse/HIVE-5994
>             Project: Hive
>          Issue Type: Bug
>    Affects Versions: 0.13.0
>            Reporter: Prasanth J
>            Assignee: Prasanth J
>              Labels: orcfile
>             Fix For: 0.13.0
>
>         Attachments: HIVE-5994.1.patch
>
>
> For large negative BIGINTs, zigzag encoding will yield large value (64bit value) with MSB set to 1. This value is interpreted as negative value in SerializationUtils.findClosestNumBits(long value) function. This resulted in wrong computation of total number of bits required which results in wrong encoding/decoding of values.


--
This message was sent by Atlassian JIRA
(v6.1.5#6160)