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From "Dingding Ye" <yedingd...@gmail.com>
Subject Re: Possible to paginate the cells in row?
Date Wed, 15 Oct 2008 17:58:49 GMT
Thanks for the comment.

On Thu, Oct 16, 2008 at 12:45 AM, Jonathan Gray <jlist@streamy.com> wrote:

> There is not currently a way to page/scan/iterate through an individual
> column family, though this can certainly be emulated in your client code.
>
> Part of the reason for that is that a single row, single family is stored
> within a single file.  So there would be no significant savings in only


Got it.


>
> retrieving part of the family at a time (besides network traffic).


yeah. But I think get parts of data at one time can save much memory usage
in the client side.



>
>
> Looking forward, once we have our own storage format, like TFile, we will
> be
> able to do real/optimized scanning through a family of columns by
> retrieving
> them in chunks rather than all at once.
>
> Support of millions of columns within a single row, single family is one of
> the priorities but there are some other changes necessary before we can
> really get there.
>

>
> JG
>
> -----Original Message-----
> From: Dingding Ye [mailto:yedingding@gmail.com]
> Sent: Wednesday, October 15, 2008 8:45 AM
> To: hbase-user@hadoop.apache.org
> Subject: Re: Possible to paginate the cells in row?
>
> Is this an abuse way to use hbase?
>
> On Wed, Oct 15, 2008 at 12:36 AM, Dingding Ye <yedingding@gmail.com>
> wrote:
>
> > Hi.
> >
> > There are many cells which shares the same column family in a row. I want
> > to do the pagination, is it possible?
> > Can i add the limit and offset options?
> >
> > I have used the scanner but it paginated based on the row which returns
> the
> > whole cells in the row.
> >
> > Thanks for the help.
> >
> > Best regards.
> >
> > sishen
> >
>
>

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