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From "edward yoon (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-1608) [HbaseShell] Relational Algrebra Operators
Date Mon, 30 Jul 2007 07:39:53 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-1608?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12516303
] 

edward yoon commented on HADOOP-1608:
-------------------------------------

In addition,


After seeing Multi-Dimensional Model Style Data Storage(BigTable Clone)built on top of Hadoop,

I thought features such as Relational Algebra, Linear Algebra, Matrix operation, and etc.
would be important.

{code}
edward yoon - [17/May/07 04:12 AM ] // Hadoop-1375

I have just started writing code for linear algebraic computation on Hadoop+Hbase based parallel
machines.
I think It will makes the hadoop an even better platform for scientific and advanced analytics
programming. 
if i should be moving my classes to a different location, let me know how to do.
{code}

Therefore, I would like to develop relation and matrix operator commands first 
and have them become consistent. 

If HBase has online-transaction processing like HBase filter implemented, 
I may make Select command more similar to SQL. 
Also, I am willing to rearrange all the syntax if it is necessary. 

However, in my opinion, Batch-type operations such as relational and matrix operators 
would be better served with the current syntax.


> [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
>             Fix For: 0.14.0
>
>         Attachments: shell_r_operators_v01.patch, shell_v02.patch, shell_v03.patch, shell_v04.patch,
shell_v05.patch
>
>
> Development of relational algebra operators has begun.
>  * Projection 
>  * Selection 
>  * Product 
>  * Rename
>  * Group
>  * Sort

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