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https://issues.apache.org/jira/browse/HIVE-5193?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13916570#comment-13916570
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Sushanth Sowmyan commented on HIVE-5193:
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Hi Viraj,
A couple of quick notes:
a) If you cancel your patch, rename it to HIVE-5193.2.patch, re-upload and mark
as patch-avaliable, then the pre-commit tests will pick it up.
b) Please do not modify any of the org.apache.hcatalog.* classes - they are
deprecated and are being maintained in parity with the state they were in as of
hive-0.11. The only reason we'd change them is if they do not build any more
due to issues with hadoop or hive/etc. Bugfixes are to go on to
org.apache.hive.hcatalog.* only for now.
> 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, 0.12.0
> Reporter: Viraj Bhat
> Assignee: Viraj Bhat
> Labels: hcatalog
> Fix For: 0.13.0
>
> Attachments: HIVE-5193-2.patch, HIVE-5193.patch
>
>
> 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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