Re: pg_toast size

On Fri, Apr 14, 2006 at 03:13:43PM +0200, Julien Drouard wrote:
> Hi everyone,
>
> I've seen my pg_toast tables are becoming bigger and bigger. After googling I would like to modify my max_fsm_pages
parameterto prevent that kind of problem. So I'm wondering if changing this parameter is enough and after that how can
Ireduce the size of these tables? By doing a full vacuum? 

A full vacuum would do it. CLUSTERing the table might rewrite the toast
tables as well.

As for toast, if you do a vacuum verbose over the entire cluster, it
will tell you at the end how much space you need in the FSM. See also
http://www.pervasivepostgres.com/instantkb13/article.aspx?id=10087
and http://www.pervasivepostgres.com/instantkb13/article.aspx?id=10116
--
Jim C. Nasby, Sr. Engineering Consultant      jnasby@pervasive.com
Pervasive Software      http://pervasive.com    work: 512-231-6117
vcard: http://jim.nasby.net/pervasive.vcf       cell: 512-569-9461