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From "Hyunsik Choi (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (TAJO-182) Comparison of primitive values including null value should return NULL.
Date Fri, 20 Dec 2013 04:00:07 GMT

    [ https://issues.apache.org/jira/browse/TAJO-182?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13853646#comment-13853646
] 

Hyunsik Choi commented on TAJO-182:
-----------------------------------

You are right. I misunderstood three value logic for AND and OR. I'll correct it! Thanks!

> Comparison of primitive values including null value should return NULL.
> -----------------------------------------------------------------------
>
>                 Key: TAJO-182
>                 URL: https://issues.apache.org/jira/browse/TAJO-182
>             Project: Tajo
>          Issue Type: Bug
>          Components: planner/optimizer
>            Reporter: Hyunsik Choi
>            Assignee: Hyunsik Choi
>            Priority: Critical
>             Fix For: 0.8-incubating
>
>         Attachments: TAJO-182.patch
>
>
> -If some domain value is compared to Null value, the current implementation will cause
InvalidOperationException. Such cases should result in 'false'.-
> If some domain value is compared to Null value, the current implementation will cause
either InvalidOperationException or FALSE. Such cases should result in NULL.



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