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From Emmanuel L├ęcharny <elecha...@apache.org>
Subject Re: SubLevel index : is it useful ?
Date Wed, 05 Oct 2011 20:03:52 GMT
On 10/5/11 9:35 PM, Stefan Seelmann wrote:
> Hi Emmanuel,
>
> On Wed, Oct 5, 2011 at 1:44 PM, Emmanuel Lecharny<elecharny@gmail.com>  wrote:
>> I may be a bit rusty, but AFAICT, we got rid of the oneLevel index, as we
>> can use the Rdn index to do the same job.
> No, not yet, see below.
>
>> I question the need of the subLevel index now : can't we use the RDN index
>> for the very same purpose ? IMO, but I may be wrong, it would be just a
>> matter of adding some extra information in the RDN index (ie, the number of
>> descendant for each entry) and to define a cursor that do a recursive
>> descent into the RDN index.
> Yes, I'm sure that is possible and that is what I did for the HBase
> partition. But its not done yet. I started a branch [1] to experiment
> with it but don't have time to continue. Feel free to pick up the
> changes there or start a new refactoring.

Okie, thanks !

I will pursue the experiment.

-- 
Regards,
Cordialement,
Emmanuel L├ęcharny
www.iktek.com


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