+1

It is a good feature to have. Once the design document is uploaded we will
get a better idea of how it will be implemented.

Regards
Manish Gupta

On Tue, Jun 5, 2018 at 11:18 AM, Kumar Vishal <kumarvishal1...@gmail.com>
wrote:

> Hi Xuchuanyin,
>
> I am working on design document, and all the points you have mentioned I
> have already captured. I will share once it is finished.
>
> -Regards
> Kumar Vishal
>
> On Tue, Jun 5, 2018 at 9:22 AM, xuchuanyin <xuchuan...@hust.edu.cn> wrote:
>
> > Hi, Kumar:
> >   Local dictionary will be nice feature and other formats like parquet
> all
> > support this.
> >
> >   My concern is that: How will you implement this feature?
> >
> >   1. What's the scope of the `local`? Page level (for all containing
> rows),
> > Blocklet level (for all containing pages), Block level(for all containing
> > blocklets)?
> >
> >   2. Where will you store the local dictionary?
> >
> >   3. How do you decide to enable the local dictionary for a column?
> >
> >   4. Have you considered to fall back to plain encoding if the local
> > dictionary encoding consumes more space?
> >
> >   5. Will you still work on V3 format or start a new V4 (or v3.1)
> version?
> >
> >   Anyway, I'm concerning about the data loading performance. Please pay
> > attention to it while you are implementing this feature.
> >
> >
> >
> > --
> > Sent from: http://apache-carbondata-dev-mailing-list-archive.1130556.
> > n5.nabble.com/
> >
>

Reply via email to