Re: Cube extension kNN support

From: Sergey Konoplev <gray(dot)ru(at)gmail(dot)com>
To: Stas Kelvich <stas(dot)kelvich(at)gmail(dot)com>, Oleg Bartunov <oleg(at)sai(dot)msu(dot)su>, aekorotkov(at)gmail(dot)com
Cc: pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Cube extension kNN support
Date: 2014-03-31 18:01:56
Message-ID: CAL_0b1uaGVBnsqx-G6G2Q+N6eGppG89ry6FF0n=yeL+yq9aBoQ@mail.gmail.com
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-hackers

On Thu, Mar 27, 2014 at 3:26 PM, Sergey Konoplev <gray(dot)ru(at)gmail(dot)com> wrote:
> On Sun, Sep 22, 2013 at 4:38 PM, Stas Kelvich <stas(dot)kelvich(at)gmail(dot)com> wrote:
>> Here is the patch that introduces kNN search for cubes with euclidean, taxicab and chebyshev distances.
>
> What is the status of this patch?

Referring to our private conversation with Alexander Korotkov, the
patch is in WIP state currently, and, hopefully, will be ready by 9.5.
I'm ready to actively participate in its testing on a real world
production set of data.

I'm not sure if it is doable at all, but are there any possibility to
implement here, or, what would be just great, any ready/half ready
solutions of a Hamming distance based kNN search?

--
Kind regards,
Sergey Konoplev
PostgreSQL Consultant and DBA

http://www.linkedin.com/in/grayhemp
+1 (415) 867-9984, +7 (901) 903-0499, +7 (988) 888-1979
gray(dot)ru(at)gmail(dot)com

In response to

Responses

Browse pgsql-hackers by date

  From Date Subject
Next Message Bruce Momjian 2014-03-31 18:06:28 Re: trailing comment ghost-timing
Previous Message Robert Haas 2014-03-31 17:37:39 Re: Why MarkBufferDirtyHint doesn't increment shared_blks_dirtied