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https://issues.apache.org/jira/browse/HIVE-756?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ning Zhang updated HIVE-756:
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Attachment: hive-756_3.patch
the patch hive-756_3.patch fixed the issue in select * from t. Passed all unit
tests (had to modify the TestRCFile.java to check only columns that are
selected).
> performance improvement for RCFile and ColumnarSerDe in Hive
> ------------------------------------------------------------
>
> Key: HIVE-756
> URL: https://issues.apache.org/jira/browse/HIVE-756
> Project: Hadoop Hive
> Issue Type: Improvement
> Reporter: Ning Zhang
> Assignee: Ning Zhang
> Fix For: 0.5.0
>
> Attachments: hive-756.patch, hive-756_2.patch, hive-756_3.patch
>
>
> There are some easy performance improvements in the columnar storage in Hive
> I found during Hackathon.
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