Re: WIP: multivariate statistics / proof of concept - Mailing list pgsql-hackers

From Tomas Vondra
Subject Re: WIP: multivariate statistics / proof of concept
Date
Msg-id 55113B55.4040309@2ndquadrant.com
Whole thread Raw
In response to Re: WIP: multivariate statistics / proof of concept  (Kyotaro HORIGUCHI <horiguchi.kyotaro@lab.ntt.co.jp>)
List pgsql-hackers
Hello,

On 03/24/15 06:34, Kyotaro HORIGUCHI wrote:
>
> Sorry, not shown above, the *previous* t1 had been done "alter table
> t1 add statistics (a, b, c)". Removing t1 didn't remove the setting.
> reiniting cluster let me do that without error.

OK, thanks. My guess is this issue got already fixed in my working copy, 
but I will double-check that.

Admittedly, the management of the stats (e.g. removing stats when the 
table is dropped) is one of the incomplete parts. You have to delete the 
rows manually from pg_mv_statistic.

-- 
--
Tomas Vondra                   http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services



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