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From "Gopal V (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-9443) ORC PPD - fix fuzzy case evaluation of IS_NULL
Date Fri, 23 Jan 2015 18:49:37 GMT

     [ https://issues.apache.org/jira/browse/HIVE-9443?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Gopal V updated HIVE-9443:
--------------------------
    Status: Patch Available  (was: Open)

Updated testcases.

> ORC PPD - fix fuzzy case evaluation of IS_NULL
> ----------------------------------------------
>
>                 Key: HIVE-9443
>                 URL: https://issues.apache.org/jira/browse/HIVE-9443
>             Project: Hive
>          Issue Type: Bug
>          Components: File Formats
>    Affects Versions: 0.15.0
>            Reporter: Gopal V
>            Assignee: Gopal V
>             Fix For: 0.15.0
>
>         Attachments: HIVE-9443.1.patch, HIVE-9443.2.patch
>
>
> ORC PPD returns IS_NULL wrong for the fuzz case of some-nulls.
> The code-flow in effect should be
> {code}
> if (min == null) {
>   // all nulls
>   return YES;
> } else {
>   if (hasNull == true) {
>      // some nulls
>      return YES_NO; //maybe
>   }
>   // no nulls
>   return NO;
> }
> {code}



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