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From Jean-Marc Spaggiari <jean-m...@spaggiari.org>
Subject RE: Changing column family in hbase
Date Wed, 28 Nov 2012 11:55:54 GMT
Then you can create the new cf and build a MR to copy your data from the
previous cf to the new one? When it's done, you delete the previous cf...
Le 28 nov. 2012 06:40, <raviprasad.t@polarisft.com> a écrit :

> Hi,
>   Yes,   I need to move the data into new cf.
> Thanks a lot for reply.
>
> Regards
> Ravi
>
> -----Anoop Sam John <anoopsj@huawei.com> wrote: -----
> To: "user@hbase.apache.org" <user@hbase.apache.org>
> From: Anoop Sam John <anoopsj@huawei.com>
> Date: 11/28/2012 04:49PM
> Subject: RE: Changing column family in hbase
>
> If you are having data in the current table schema?
> You want some how to move the data to new CF?  If yes I dont think it is
> possible. Some similar question was asked in the mailing list today. Is
> your scenario also same?
>
> -Anoop-
> ________________________________________
> From: raviprasad.t@polarisFT.com [raviprasad.t@polarisFT.com]
> Sent: Wednesday, November 28, 2012 4:34 PM
> To: user@hbase.apache.org
> Subject: Re: Changing column family in hbase
>
> Hi Mohammad,
>   Our requirement is that,
>   Initially we have created a table 'emp'  with the below detail in single
> column family (cfemp )
>     cfemp:eno
>     cfemp:ename
>     cfemp:address
>
> After that we have added two columns  in the table  (  address2, address3
> and  city),
>   We plan to create a new coloum family called  'cfadd'  to store all the
> address details as below
>      cfemp:eno
>      cfemp:ename
>      cfadd:address   -- Previously it was in cfemp column family
>      cfadd:address2
>      cfadd:address3
>      cfadd:city
>
> Regards,
> Ravi
>
> -----Mohammad Tariq <dontariq@gmail.com> wrote: -----
> To: "user@hbase.apache.org" <user@hbase.apache.org>
> From: Mohammad Tariq <dontariq@gmail.com>
> Date: 11/28/2012 02:39PM
> Subject: Re: Changing column family in hbase
>
> Hello Ravi,
>
>     Short answer, no. We don't have a way to achieve this. At lest I am not
> aware of any. (Please share with us if you are able to achieve this.)
>
> But, just out of curiosity, I would like to ask you, why would you want to
> do that? I mean I don't see any fundamental difference between both the
> schemata.
>
> Regards,
>     Mohammad Tariq
>
>
>
> On Wed, Nov 28, 2012 at 2:28 PM, <raviprasad.t@polarisft.com> wrote:
>
> >  Hi,
> >   We need to change columns of Hbase table from one column family to
> > another column family .
> >
> > Example :-
> >     HBase table Name :-  emp
> >
> >     Column family :-  cf1
> >         Under the column family cf1, we have the following columns
> >                       cf1: no
> >                       cf1:name
> >                       cf1:salary
> >                       cf1: job
> >
> > We have created another column family called  'cf2'  in the same table
> > 'emp'
> >
> > How to replace Column family cf1's   columns to another column family
> > 'cf2' like below ?
> >
> >                       cf2: no
> >                        cf2:name
> >                        cf2:salary
> >                        cf2: job
> >
> > Regards
> > Ravi
> >
> >
> >
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>
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