| From: | Teodor Sigaev <teodor(at)sigaev(dot)ru> |
|---|---|
| To: | Jeff Davis <pgsql(at)j-davis(dot)com> |
| Cc: | Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Pgsql Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: [PATCHES] GIN improvements |
| Date: | 2009-01-22 12:21:48 |
| Message-ID: | 497864DC.5080800@sigaev.ru |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers pgsql-patches |
>> BTW, gincostestimate could use that information for cost estimation, but is
>> index opening and metapge reading in amcostestimate acceptable?
>
> That sounds reasonable to me. I think that's what the index-specific
> cost estimators are for.
Done.
> Do you expect a performance impact?
I'm afraid for that and will test tomorrow. But statistic from index is exact.
--
Teodor Sigaev E-mail: teodor(at)sigaev(dot)ru
WWW: http://www.sigaev.ru/
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| fast_insert_gin-0.24.gz | application/x-tar | 24.1 KB |
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