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From "Edward Yoon (JIRA)" <j...@apache.org>
Subject [jira] Issue Comment Edited: (HADOOP-1608) [HbaseShell] Relational Algrebra Operators
Date Wed, 03 Oct 2007 07:10:51 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-1608?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12531789
] 

udanax edited comment on HADOOP-1608 at 10/3/07 12:10 AM:
---------------------------------------------------------------

I used only mapreduce job for relational operations. (I think scanner should be used for specific
situation, too.)

I'll implement operations of relational,matrix,topological algebra features using mapreduce
job.
And, Shell will provides a tentative language for those operations with the current syntax.

After all done, I think we can discuss the next steps to improve query language, optimizing
the query execution process. 

----
If it's okay with you, i would like to submit this patch.
and, If you are not sure about committing this patch, let me know.

      was (Author: udanax):
    If it's okay with you, i would like to submit this patch.
and, If you are not sure about committing this patch, let me know.
  
> [HbaseShell] Relational Algrebra Operators
> ------------------------------------------
>
>                 Key: HADOOP-1608
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1608
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: contrib/hbase
>         Environment: All environments 
>            Reporter: Edward Yoon
>            Priority: Minor
>         Attachments: patch.txt, shell_r_operators_v01.patch, shell_v02.patch, shell_v03.patch,
shell_v04.patch, shell_v05.patch, shell_v06.patch, shell_v07.patch
>
>
> Development of relational algebra operators has begun.
>  * Projection 
>  * Selection 
>  * Product 
>  * Rename
>  * Group
>  * Sort

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