On Fri, Mar 03, 2006 at 11:37:00AM -0500, Tom Lane wrote: > Bruce and I were discussing this the other day; it'd be pretty easy to > make plain VACUUM start a fresh transaction immediately after it > finishes a scan heap/clean indexes/clean heap cycle. The infrastructure > for this (in particular, session-level locks that won't be lost by > closing the xact) is all there. You'd have to figure out how often to > start a new xact ... every cycle is probably too often, at least for > smaller maintenance_work_mem settings ... but it'd not be hard or
If maintenance_work_mem is small you're likely to have poor performance anyway; I'm suspicious that the overhead of starting a new xact would be all that important. If you care about performance, you'll probably have increased maintenance_work_mem anyway. -- Jim C. Nasby, Sr. Engineering Consultant [EMAIL PROTECTED] Pervasive Software http://pervasive.com work: 512-231-6117 vcard: http://jim.nasby.net/pervasive.vcf cell: 512-569-9461 ---------------------------(end of broadcast)--------------------------- TIP 3: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faq
