Hello Haribabu,

Thank you for the performance test. But please not that the patch is
'thrown away', and will be totally rewritten. I have no idea of the status
of the second / third attempt however.
However, what is interesting is that for some queries this patch is already
on par with VCI. Which db is that exactly?

You wrote that a wiki page would be opened regarding this. But I still
cannot find such a page (expect for an old page which hasn't changed in the
last year). Is there already something we can look at?


On Thu, Mar 3, 2016 at 6:07 AM, Haribabu Kommi <kommi.harib...@gmail.com>

> On Mon, Feb 1, 2016 at 12:11 AM, Alvaro Herrera
> <alvhe...@2ndquadrant.com> wrote:
> > So we discussed some of this stuff during the developer meeting in
> > Brussels and the main conclusion is that we're going to split this up in
> > multiple independently useful pieces, and write up the general roadmap
> > in the wiki so that we can discuss in detail on-list.
> >
> > I'm marking this as Returned with Feedback now.
> >
> > Thanks everybody,
> Here I attached the DBT-3 performance report that is measured on the
> prototype patch
> that is written for columnar storage as I mentioned in my earlier mail
> with WOS and ROS
> design.
> Currently to measure the benefits of this design, we did the following
> changes,
> 1. Created the columnar storage index similar like other index methods
> 2. Used custom plan to generate the plan that can use the columnar storage
> 3. Optimized parallelism to use the columnar storage
> The code is not fully ready yet, I posted the performance results to
> get a view from
> community, whether this approach is really beneficial?
> I will provide the full details of the design and WIP patches later.
> Regards,
> Hari Babu
> Fujitsu Australia
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Bert Desmet

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