| From: | David Fetter <david(at)fetter(dot)org> |
|---|---|
| To: | Alexander Korotkov <aekorotkov(at)gmail(dot)com> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Erikjan Rijkers <er(at)xs4all(dot)nl>, Heikki Linnakangas <hlinnakangas(at)vmware(dot)com>, Tomas Vondra <tv(at)fuzzy(dot)cz>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>, Pavel Stìhule <pavel(dot)stehule(at)gmail(dot)com> |
| Subject: | Re: WIP: index support for regexp search |
| Date: | 2013-04-15 15:27:37 |
| Message-ID: | 20130415152737.GI5337@fetter.org |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
On Mon, Apr 15, 2013 at 05:53:41PM +0400, Alexander Korotkov wrote:
> I found you committed GiST index implementation. That's cool.
> I found an easy way to optimize it. We can also use trigramsMatchGraph for
> signatures. Attached patch contains implementation.
> Simple example in order to demonstrate it:
>
> Before the patch:
> Buffers: shared hit=*857*
> After the patch:
> Buffers: shared hit=*497*
Neato!
Inside the patch, s/monotonous/monotone/, I think.
Cheers,
David.
--
David Fetter <david(at)fetter(dot)org> http://fetter.org/
Phone: +1 415 235 3778 AIM: dfetter666 Yahoo!: dfetter
Skype: davidfetter XMPP: david(dot)fetter(at)gmail(dot)com
iCal: webcal://www.tripit.com/feed/ical/people/david74/tripit.ics
Remember to vote!
Consider donating to Postgres: http://www.postgresql.org/about/donate
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Andrew Dunstan | 2013-04-15 15:31:39 | Re: Why are JSON extraction functions STABLE and not IMMUTABLE? |
| Previous Message | David Fetter | 2013-04-15 15:24:27 | Re: COPY and Volatile default expressions |