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Posted to issues@tajo.apache.org by "Jihoon Son (JIRA)" <ji...@apache.org> on 2015/04/10 03:13:12 UTC

[jira] [Commented] (TAJO-1545) Replace NLLeftOuterJoinExec with RightOuterMergeJoinExec

    [ https://issues.apache.org/jira/browse/TAJO-1545?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14488697#comment-14488697 ] 

Jihoon Son commented on TAJO-1545:
----------------------------------

It's true whenever NLJoin should he avoided if possible. And we already do in some cases. Would you give more detailed descriptions of the case you found? 

> Replace NLLeftOuterJoinExec with RightOuterMergeJoinExec
> --------------------------------------------------------
>
>                 Key: TAJO-1545
>                 URL: https://issues.apache.org/jira/browse/TAJO-1545
>             Project: Tajo
>          Issue Type: Improvement
>            Reporter: Navis
>            Assignee: Navis
>
> NLJoin is bad whenever it's avoidable.



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