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https://issues.apache.org/jira/browse/HIVE-4014?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13577216#comment-13577216
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Vinod Kumar Vavilapalli commented on HIVE-4014:
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I already tracked it down, will upload a patch soon..
> Hive+RCFile is not doing column pruning and reading much more data than
> necessary
> ---------------------------------------------------------------------------------
>
> Key: HIVE-4014
> URL: https://issues.apache.org/jira/browse/HIVE-4014
> Project: Hive
> Issue Type: Bug
> Reporter: Vinod Kumar Vavilapalli
> Assignee: Vinod Kumar Vavilapalli
>
> With even simple projection queries, I see that HDFS bytes read counter
> doesn't show any reduction in the amount of data read.
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