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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (PIG-1117) Pig reading hive columnar rc tables
Date Thu, 18 Mar 2010 16:28:27 GMT

    [ https://issues.apache.org/jira/browse/PIG-1117?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12846979#action_12846979
] 

Hadoop QA commented on PIG-1117:
--------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12439100/PIG-1117-0.7.0-new.patch
  against trunk revision 924558.

    +1 @author.  The patch does not contain any @author tags.

    +1 tests included.  The patch appears to include 5 new or modified tests.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    +1 findbugs.  The patch does not introduce any new Findbugs warnings.

    -1 release audit.  The applied patch generated 535 release audit warnings (more than the
trunk's current 529 warnings).

    -1 core tests.  The patch failed core unit tests.

    +1 contrib tests.  The patch passed contrib unit tests.

Test results: http://hudson.zones.apache.org/hudson/job/Pig-Patch-h7.grid.sp2.yahoo.net/242/testReport/
Release audit warnings: http://hudson.zones.apache.org/hudson/job/Pig-Patch-h7.grid.sp2.yahoo.net/242/artifact/trunk/patchprocess/releaseAuditDiffWarnings.txt
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Pig-Patch-h7.grid.sp2.yahoo.net/242/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output: http://hudson.zones.apache.org/hudson/job/Pig-Patch-h7.grid.sp2.yahoo.net/242/console

This message is automatically generated.

> Pig reading hive columnar rc tables
> -----------------------------------
>
>                 Key: PIG-1117
>                 URL: https://issues.apache.org/jira/browse/PIG-1117
>             Project: Pig
>          Issue Type: New Feature
>    Affects Versions: 0.7.0
>            Reporter: Gerrit Jansen van Vuuren
>            Assignee: Gerrit Jansen van Vuuren
>             Fix For: 0.7.0
>
>         Attachments: HiveColumnarLoader.patch, HiveColumnarLoaderTest.patch, PIG-1117-0.7.0-new.patch,
PIG-1117.patch, PIG-117-v.0.6.0.patch, PIG-117-v.0.7.0.patch
>
>
> I've coded a LoadFunc implementation that can read from Hive Columnar RC tables, this
is needed for a project that I'm working on because all our data is stored using the Hive
thrift serialized Columnar RC format. I have looked at the piggy bank but did not find any
implementation that could do this. We've been running it on our cluster for the last week
and have worked out most bugs.
>  
> There are still some improvements to be done but I would need  like setting the amount
of mappers based on date partitioning. Its been optimized so as to read only specific columns
and can churn through a data set almost 8 times faster with this improvement because not all
column data is read.
> I would like to contribute the class to the piggybank can you guide me in what I need
to do?
> I've used hive specific classes to implement this, is it possible to add this to the
piggy bank build ivy for automatic download of the dependencies?

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