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From "Prafulla T (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (TAJO-182) Null comparison should be false
Date Wed, 18 Dec 2013 04:32:06 GMT

    [ https://issues.apache.org/jira/browse/TAJO-182?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13851355#comment-13851355

Prafulla T commented on TAJO-182:

Also I think that NULL comparison should be evaluated to NULL which in turn should be interpreted
as false in most of cases.
I checked the implementation and Tajo does not seem to be doing that. I may have missed somethings.

> Null comparison should be false
> -------------------------------
>                 Key: TAJO-182
>                 URL: https://issues.apache.org/jira/browse/TAJO-182
>             Project: Tajo
>          Issue Type: Bug
>          Components: planner/optimizer
>            Reporter: Hyunsik Choi
>             Fix For: 0.8-incubating
> If some domain value is compared to Null value, the current implementation will cause
InvalidOperationException. Such cases should result in 'false'.

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