Re: best statistic target for boolean columns

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От Gaetano Mendola
Тема Re: best statistic target for boolean columns
Дата
Msg-id 4158AD5C.9090908@bigfoot.com
обсуждение исходный текст
Ответ на Re: best statistic target for boolean columns  (Neil Conway <neilc@samurai.com>)
Список 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@postgresql.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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