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From "edward yoon (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-1608) [HbaseShell] Relational Algrebra Operators
Date Thu, 02 Aug 2007 08:14:52 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-1608?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12517172
] 

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

My suggestion is to develop HBase Shell in SQL-style, and develop numeric tools as a sub shell
as described below. 
If you are okay with it, I want the development to start. 

{code}
HBase > help;

 Type 'help <command>;' to see command-specific usage.

 CLEAR      Clear the screen.
 CREATE     Create a table.
 DELETE     Delete cell or row in table.
 DESCRIBE   Describe a table's columnfamilies.
 DROP       Drop columnfamilie(s) from a table or drop table(s).
 EXIT       Exit shell
 INSERT     Insert row into table.
 SELECT     Select values from a table.
 SHOW       List all tables or files.

 NUMERIC    HBase Numeric Analyzer Tool.

HBase > numeric;

Hbase Numeric Shell, 0.0.1 version
Type 'help;' for Hbase Numeric Analyzer Tool usage.

HBase Numeric > help;

 Type 'help <command>;' to see command-specific usage.

 STORE      Store results to specified table(or file).
 SUBSTITUTE Substitute expression to [A~Z].
 TABLE      Load a table.

Relational Algebra Operators.

 PROJECTION Make a new relation set {cf_name1, ... , cf_name2}.
 SELECTION  Make a new relation set of specified Rows.
 SORT       Make a new sorted set, ordered according to columnfamilies.

HBase Numeric > exit;
HBase > exit;

nhn@yoon0105 ~/workspace/hadoop
$
{code}


> [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, shell_v06.patch, shell_v07.patch
>
>
> Development of relational algebra operators has begun.
>  * Projection 
>  * Selection 
>  * Product 
>  * Rename
>  * Group
>  * Sort

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