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From "Hyunsik Choi (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (TAJO-122) Add EXPLAIN clause to show a logical plan
Date Tue, 14 Jan 2014 17:08:54 GMT

    [ https://issues.apache.org/jira/browse/TAJO-122?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13870909#comment-13870909
] 

Hyunsik Choi edited comment on TAJO-122 at 1/14/14 5:08 PM:
------------------------------------------------------------

I reviewed this patch and gave +1.

committed it to master branch. Thank you for your contribution.


was (Author: hyunsik):
I reviewed this patch and gave +1.

committed it to master branch. Thank you for the review.

> Add EXPLAIN clause to show a logical plan
> -----------------------------------------
>
>                 Key: TAJO-122
>                 URL: https://issues.apache.org/jira/browse/TAJO-122
>             Project: Tajo
>          Issue Type: New Feature
>          Components: planner/optimizer
>            Reporter: Hyunsik Choi
>            Assignee: DaeMyung Kang
>             Fix For: 0.8-incubating
>
>         Attachments: TAJO-122.2.patch, TAJO-122.patch
>
>
> (I've changed this issue from implementing an utility class to preint JSON to implementing
EXPLAIN clause support.)
> For convenience for debugging and developing new engine (TAJO-104), we need EXPLAIN clause
to print plans used in Tajo internal. In this issue, we only focus on showing a logical plan.



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