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From "Jitendra Nath Pandey (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-4534) IsNotNull and NotCol incorrectly handle nulls.
Date Tue, 14 May 2013 21:29:16 GMT

     [ https://issues.apache.org/jira/browse/HIVE-4534?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jitendra Nath Pandey updated HIVE-4534:
---------------------------------------

    Attachment: HIVE-4534.1.patch

Initial patch uploaded, I will upload another patch with unit tests.
                
> IsNotNull and NotCol incorrectly handle nulls.
> ----------------------------------------------
>
>                 Key: HIVE-4534
>                 URL: https://issues.apache.org/jira/browse/HIVE-4534
>             Project: Hive
>          Issue Type: Sub-task
>            Reporter: Eric Hanson
>            Assignee: Jitendra Nath Pandey
>         Attachments: HIVE-4534.1.patch
>
>
> See file IsNotNull.java in package org.apache.hadoop.hive.ql.exec.vector.expressions
> It never looks at the noNulls flag on the input vector, but accesses the isNull[] array
anyway. This can yield incorrect results.
> isRepeating and noNulls are not set in the output, which can also cause wrong results.

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