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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (TAJO-122) Add EXPLAIN clause to show a logical plan
Date Tue, 14 Jan 2014 17:12:51 GMT

    [ https://issues.apache.org/jira/browse/TAJO-122?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13870912#comment-13870912
] 

Hudson commented on TAJO-122:
-----------------------------

SUCCESS: Integrated in Tajo-master-build #10 (See [https://builds.apache.org/job/Tajo-master-build/10/])
TAJO-122: Add EXPLAIN clause to show a logical plan. (DaeMyung Kang via hyunsik) (hyunsik:
https://git-wip-us.apache.org/repos/asf?p=incubator-tajo.git&a=commit&h=01829fbddf7c5b988397d023c9f3cec0cea07c3f)
* tajo-core/tajo-core-backend/src/main/java/org/apache/tajo/master/TajoMasterClientService.java
* tajo-client/src/main/proto/TajoMasterClientProtocol.proto
* tajo-core/tajo-core-backend/src/main/java/org/apache/tajo/master/GlobalEngine.java
* tajo-client/src/main/java/org/apache/tajo/cli/TajoCli.java
* tajo-client/src/main/java/org/apache/tajo/client/TajoClient.java
* tajo-client/src/main/proto/ClientProtos.proto
* CHANGES.txt


> 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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