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Re: best statistic target for boolean columns

From: Gaetano Mendola <mendola(at)bigfoot(dot)com>
To: Neil Conway <neilc(at)samurai(dot)com>
Subject: Re: best statistic target for boolean columns
Date: 2004-09-28 00:16:28
Message-ID: 4158AD5C.9090908@bigfoot.com (view raw or flat)
Thread:
Lists: pgsql-performance
Neil Conway wrote:
> On Tue, 2004-09-28 at 08:42, Gaetano Mendola wrote:
> 
>>Now I'm reading an article, written by the same author that ispired the magic "300"
>>on analyze.c, about "Self-tuning Histograms". If this is implemented, I understood
>>we can take rid of "vacuum analyze" for mantain up to date the statistics.
>>Have someone in his plans to implement it ?
> 
> 
> http://www.mail-archive.com/pgsql-hackers(at)postgresql(dot)org/msg17477.html
> 
> Tom's reply is salient. I still think self-tuning histograms would be
> worth looking at for the multi-dimensional case.

I see.



Regards
Gaetano Mendola


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