Horton

Re: [PATCHES] GIN improvements

Teodor Sigaev <teodor@sigaev.ru>

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From: Teodor Sigaev <teodor@sigaev.ru>
To: Jeff Davis <pgsql@j-davis.com>
Cc: Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>, Tom Lane <tgl@sss.pgh.pa.us>, Pgsql Hackers <pgsql-hackers@postgresql.org>
Date: 2009-01-22T12:21:48Z
Lists: pgsql-hackers

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>> 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@sigaev.ru
                                                    WWW: http://www.sigaev.ru/