I do missed this important article about index, which discussing about the focus concerns. In fact, I have used Composite Column to resolve my problem. In some context, data model can resolves as 'alternate index',  but it's complicated and can result new problems: data redundancy and maintenance. The most , what items I can query are decided at design time, that is, No Design No Query, even all data is there. Thanks to all.
 
------------------ Original ------------------
Date:  Fri, Dec 14, 2012 01:31 AM
To:  "user"<user@cassandra.apache.org>;
Subject:  Re: Why Secondary indexes is so slowly by my test?
 
Here is a good start.

http://www.anuff.com/2011/02/indexing-in-cassandra.html

On Thu, Dec 13, 2012 at 11:35 AM, Alain RODRIGUEZ <arodrime@gmail.com> wrote:
Hi Edward, can you share the link to this blog ?

Alain

2012/12/13 Edward Capriolo <edlinuxguru@gmail.com>
Ed ENuff s