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From Andrew Purtell <andrew.purt...@gmail.com>
Subject Re: CCIndex for cassandra
Date Wed, 27 Feb 2013 04:32:14 GMT
You are mailing a HBase mailing list. Since your only interest seems centered around Cassandra,
you should ask your question on a mailing list of theirs. 

On Feb 26, 2013, at 8:29 PM, bjbhutkar <bhutkar.bhalchandra@gmail.com> wrote:

> The thing I am interested in is in correspondence with cassandra. Cassandra
> currently supports multidimensional range queries with a limitation that at
> least one of the dimensions supplied in the query must be of equality
> operation
> example : "Select * from table where Weight > 65 AND Height < 6 AND Country
> = India" . This is supported in cassandra.
> But "Select * from table where Weight > 65 AND Height < 6" this query  is
> not possible with current cassandra version. To mitigate this problem I
> thought of implementing the CCIndex in cassandra as the paper claims to
> provide such functionality.
> 
> I searched around and found the code for CCIndex on github . I was
> wondering whether this code can be modified so that it uses Cassandra's
> APIs. Furthermore , If anybody's having any suggestions for implementing
> such functionality then please let me know . Is such functionality provided
> in HBase or not ? If yes , then how the algorithm works for querying the
> data where all the dimensions in a query are either "Less Than (<) "or "Greater
> Than (>)" ?
> 
> 
> 
> On Wed, Feb 27, 2013 at 7:14 AM, Jean-Marc Spaggiari [via Apache HBase] <
> ml-node+s679495n4039285h58@n3.nabble.com> wrote:
> 
>> Hi Bhalchandra,
>> 
>> This is a 3 years old PDF, and still, I'm not able to find any trace
>> of that in HBase anywhere. Sorry. Seems that it was based on HBase
>> 0.20.1. We are now at 0.94.5...
>> 
>> Maybe it's a vendor extension which has not been published/released?
>> 
>> JM
>> 
>> 2013/2/26 bjbhutkar <[hidden email]<http://user/SendEmail.jtp?type=node&node=4039285&i=0>>:
>> 
>> 
>>> Hi Jean Marc
>>> 
>>> HBase implementation of CCIndex in the following link
>>> 
>>> http://www.china-cloud.com/ziliao/CCIndex%20HBase.pdf
>>> 
>>> 
>>> On Tue, Feb 26, 2013 at 11:28 AM, bhalchandra bhutkar <
>>> [hidden email] <http://user/SendEmail.jtp?type=node&node=4039285&i=1>>
>> wrote:
>>> 
>>>> Dear Jean Marc ,
>>>> 
>>>> Thanks for responding.
>>>> CCIndex stands for Complemental Clustering Index. The reference for
>>>> CCIndex can be found in following ink
>> http://www.slideshare.net/jgabriellima/cc-index-for-cassandra-a-novel-scheme-for-multidimensional-range-queries-in-cassandra
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
>>>> On Mon, Feb 25, 2013 at 7:01 AM, Jean-Marc Spaggiari [via Apache HBase]
>> <
>>>> [hidden email] <http://user/SendEmail.jtp?type=node&node=4039285&i=2>>
>> wrote:
>>>> 
>>>>> Hi,
>>>>> 
>>>>> What do you mean by CCIndex?
>>>>> 
>>>>> The only thing I found about that is
>> https://github.com/Jia-Liu/CCIndex and
>>>>> 
>>>>> it has not been updated for 2 years now.
>>>>> 
>>>>> Also found that wich is more recent:
>>>>> https://github.com/ICT-Ope/CCIndex_HBase_0.90.0
>>>>> 
>>>>> You can also read this thread:
>>>>> http://www.mail-archive.com/dev@.../msg06553.html<
>> http://www.mail-archive.com/dev@.../msg06553.html<http://www.mail-archive.com/dev@hbase.apache.org/msg06553.html>>
>> 
>>>>> 
>>>>> Looking at the code I was not able to fine any class name close to
>> that
>>>>> neither I found anything into the HBase classes. (Searched for
>>>>> *CC*Index*)
>>>>> 
>>>>> All of that to say, I'm not sure this is integrated in HBase today.
>>>>> 
>>>>> But I might be wrong. Do you have any reference about what you are
>>>>> looking
>>>>> for?
>>>>> 
>>>>> JM
>>>>> 
>>>>> 2013/2/24 bjbhutkar <[hidden email]<
>> http://user/SendEmail.jtp?type=node&node=4039078&i=0>>
>>>>> 
>>>>> 
>>>>>> Hello HBase,
>>>>>> 
>>>>>> I am a cassandra user and i want to implement the CCIndex scheme
in
>>>>>> cassandra. Can anyone help me to understand the CCIndex code ? I
>> want
>>>>> to
>>>>>> modify the CCIndex code so that it will use the Cassandra's APIs.
>>>>>> 
>>>>>> 
>>>>>> 
>>>>>> --
>>>>>> View this message in context:
>> http://apache-hbase.679495.n3.nabble.com/CCIndex-for-cassandra-tp4039070.html
>>>>>> Sent from the HBase User mailing list archive at Nabble.com.
>>>>> 
>>>>> 
>>>>> ------------------------------
>>>>> If you reply to this email, your message will be added to the
>>>>> discussion below:
>> 
>>>>> .
>>>>> NAML<
>> http://apache-hbase.679495.n3.nabble.com/template/NamlServlet.jtp?macro=macro_viewer&id=instant_html%21nabble%3Aemail.naml&base=nabble.naml.namespaces.BasicNamespace-nabble.view.web.template.NabbleNamespace-nabble.view.web.template.NodeNamespace&breadcrumbs=notify_subscribers%21nabble%3Aemail.naml-instant_emails%21nabble%3Aemail.naml-send_instant_email%21nabble%3Aemail.naml>
>> 
>>>> 
>>>> 
>>>> 
>>>> --
>>>> Thanks and Regards
>>>> *Bhalchandra J Bhutkar*
>>>> *Mob - 7588384281*
>>> 
>>> 
>>> 
>>> --
>>> Thanks and Regards
>>> *Bhalchandra J Bhutkar*
>>> *Mob - 7588384281*
>>> 
>>> 
>>> 
>>> 
>>> --
>>> View this message in context:
>> http://apache-hbase.679495.n3.nabble.com/CCIndex-for-cassandra-tp4039070p4039183.html
>> 
>>> Sent from the HBase User mailing list archive at Nabble.com.
>> 
>> 
>> ------------------------------
>> If you reply to this email, your message will be added to the discussion
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>> 
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> 
> 
> 
> -- 
> Thanks and Regards
> *Bhalchandra J Bhutkar*
> *Mob - 7588384281*
> 
> 
> 
> 
> --
> View this message in context: http://apache-hbase.679495.n3.nabble.com/CCIndex-for-cassandra-tp4039070p4039295.html
> Sent from the HBase User mailing list archive at Nabble.com.

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