Re: best statistic target for boolean columns - Mailing list pgsql-performance

From Neil Conway
Subject Re: best statistic target for boolean columns
Date
Msg-id 1096328625.25688.755.camel@localhost.localdomain
Whole thread Raw
In response to Re: best statistic target for boolean columns  (Gaetano Mendola <mendola@bigfoot.com>)
Responses Re: best statistic target for boolean columns  (Gaetano Mendola <mendola@bigfoot.com>)
List pgsql-performance
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.

-Neil



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