show all and grep are your friend. From my laptop with 8.1: decibel@xxxxxxxxxxx[16:36]~:4%psql -tc 'show all' | grep vacuum_cost_delay|tr -s ' ' autovacuum_vacuum_cost_delay | -1 | Vacuum cost delay in milliseconds, for autovacuum. vacuum_cost_delay | 0 | Vacuum cost delay in milliseconds. decibel@xxxxxxxxxxx[16:37]~:5% I don't have a 7.4 copy around, but you can just check it yourself. On Mon, May 01, 2006 at 02:40:41PM -0400, Chris Mckenzie wrote: > Hi everyone. > > I've got a quick and stupid question: Does Postgres 7.4 (7.x) support > vacuum_cost_delay? > > For all my googles and documentation reading I've determined it's not > supported, only because I can't find a 7.x doc or forum post claiming > otherwise. > > Upgrading to 8.x is out of the question, but I still need to employ > something to auto-vacuum a large and active database (possibly more than > once a day) in a manner that wouldn't affect load at the wrong time. > > If I could combine pg_autovacuum with vacuum_cost_delay I could potentially > have a solution. (barring some performance testing) > > The only problem with pg_autovacuum is the need for pg_statio, which itself > will reduce performance at all times. > > Any suggestions? > > Thanks! > > - Chris > > > -- Jim C. Nasby, Sr. Engineering Consultant jnasby@xxxxxxxxxxxxx Pervasive Software http://pervasive.com work: 512-231-6117 vcard: http://jim.nasby.net/pervasive.vcf cell: 512-569-9461
