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From Neelesh <neele...@gmail.com>
Subject Re: How do local indexes work?
Date Fri, 30 Jun 2017 05:46:44 GMT
Thanks for the slides, Rajesh Babu.

Does this mean any read path will have to scan all regions of a table? Is
there an optimization available if the primary key and the index share a
common prefix, thus reducing the number of regions to look at?

Thanks again!


On Jun 29, 2017 7:24 PM, "rajeshbabu@apache.org" <chrajeshbabu32@gmail.com>
wrote:

9,10 slides gives details how read path works.

https://www.slideshare.net/rajeshbabuchintaguntla/local-
secondary-indexes-in-apache-phoenix

Let's know if you need more information.

Thanks,
Rajeshbabu.

On Fri, Jun 30, 2017 at 4:20 AM, Neelesh <neeleshs@gmail.com> wrote:

> Hi,
>    The documentation says  - "From 4.8.0 onwards we are storing all local
> index data in the separate shadow column families in the same data table".
>
> It is not quite clear to me how the read path works with local indexes. Is
> there any document that has some details on how it works ? PHOENIX-1734 has
> some (shadow CFs), but not enough.
>
> Any pointers are appreciated!
>
> Thanks
>
>

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