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From "Dain Sundstrom (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-8732) ORC string statistics are not merged correctly
Date Wed, 05 Nov 2014 01:14:33 GMT

    [ https://issues.apache.org/jira/browse/HIVE-8732?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14197283#comment-14197283
] 

Dain Sundstrom commented on HIVE-8732:
--------------------------------------

You will need to bump the file version so a reader knows the stats are good.  You should also
disable using these stats for predicate pushdown in the current version of the file.

And if you are bumping the version, you should fix the Timestamp epoch bug.

> ORC string statistics are not merged correctly
> ----------------------------------------------
>
>                 Key: HIVE-8732
>                 URL: https://issues.apache.org/jira/browse/HIVE-8732
>             Project: Hive
>          Issue Type: Bug
>          Components: File Formats
>            Reporter: Owen O'Malley
>            Assignee: Owen O'Malley
>            Priority: Blocker
>             Fix For: 0.14.0
>
>         Attachments: HIVE-8732.patch
>
>
> Currently ORC's string statistics do not merge correctly causing incorrect maximum values.



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