=?ISO-8859-1?Q?St=E9phane_Schildknecht?= <stephane.schildknecht@postgresqlfr.org> writes:
> Tom Lane a �crit :
>> The real question is how often do rows get updated? I suspect you
>> probably need to vacuum this table more than once a day.
> To be honest, I suspect it too. But, I have been told by people using
> that database they can't do vacuum more frequently than once in a day as
> it increases the time to achieve concurrent operations.
vacuum_cost_delay can help here.
regards, tom lane