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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-4258) Log logical plan tree for debugging
Date Sat, 30 Mar 2013 15:31:17 GMT

    [ https://issues.apache.org/jira/browse/HIVE-4258?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13618096#comment-13618096
] 

Hudson commented on HIVE-4258:
------------------------------

Integrated in Hive-trunk-h0.21 #2036 (See [https://builds.apache.org/job/Hive-trunk-h0.21/2036/])
    HIVE-4258 Log logical plan tree for debugging
(Navis via namit) (Revision 1462531)

     Result = FAILURE
namit : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1462531
Files : 
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/Operator.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/parse/SemanticAnalyzer.java

                
> Log logical plan tree for debugging
> -----------------------------------
>
>                 Key: HIVE-4258
>                 URL: https://issues.apache.org/jira/browse/HIVE-4258
>             Project: Hive
>          Issue Type: Improvement
>          Components: Diagnosability
>            Reporter: Navis
>            Assignee: Navis
>            Priority: Trivial
>             Fix For: 0.11.0
>
>         Attachments: HIVE-4258.D9801.1.patch
>
>
> Debugging or implementing optimizer, knowing the shape of logical plan helps general
progress of it.
> For example,
> select count(val) from (select a.key as key, b.value as array_val from src a join array_valued_src
b on a.key=b.key) i lateral view explode (array_val) c as val
> {noformat} 
> TS[1]-RS[2]-JOIN[4]-SEL[5]-LVF[6]-SEL[7]-LVJ[10]-SEL[11]-GBY[12]-RS[13]-GBY[14]-SEL[15]-FS[16]
>                                  -SEL[8]-UDTF[9]-LVJ[10]
> TS[0]-RS[3]-JOIN[4]
> {noformat} 

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