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https://issues.apache.org/jira/browse/HIVE-5193?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13755267#comment-13755267
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Viraj Bhat commented on HIVE-5193:
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Submitting a patch to address this issue with a testcase.
> Columnar Pushdown for RC/ORC File not happening in HCatLoader
> --------------------------------------------------------------
>
> Key: HIVE-5193
> URL: https://issues.apache.org/jira/browse/HIVE-5193
> Project: Hive
> Issue Type: Improvement
> Components: HCatalog
> Affects Versions: 0.10.0, 0.11.0
> Reporter: Viraj Bhat
> Assignee: Viraj Bhat
> Fix For: 0.11.1, 0.12.0
>
>
> Currently the HCatLoader is not taking advantage of the
> ColumnProjectionUtils. where it could skip columns during read. The
> information is available in Pig it just needs to get to the Readers.
> Viraj
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