| From: | Oleg Bartunov <oleg(at)sai(dot)msu(dot)su> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Teodor Sigaev <teodor(at)sigaev(dot)ru>, Heikki Linnakangas <heikki(at)enterprisedb(dot)com>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Index AM change proposals, redux |
| Date: | 2008-04-11 19:13:24 |
| Message-ID: | Pine.LNX.4.64.0804112312030.21547@sn.sai.msu.ru |
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| Thread: | |
| Lists: | pgsql-hackers |
On Fri, 11 Apr 2008, Tom Lane wrote:
> Oleg Bartunov <oleg(at)sai(dot)msu(dot)su> writes:
>> Slightly offtopic. How to get benefit on tuple level ? For example,
>> we mark GiST tsearch index as lossy, while for not very big documents it's
>> actually exact and we could save a lot not rechecking them.
>
> Won't that just fall out of this? Assuming the consistent() function
> knows when the match is exact, it can set the flag properly.
Ah, yes. Looks like a new life for GiST tsearch index.
>
> regards, tom lane
>
Regards,
Oleg
_____________________________________________________________
Oleg Bartunov, Research Scientist, Head of AstroNet (www.astronet.ru),
Sternberg Astronomical Institute, Moscow University, Russia
Internet: oleg(at)sai(dot)msu(dot)su, http://www.sai.msu.su/~megera/
phone: +007(495)939-16-83, +007(495)939-23-83
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