On Mon, Apr 24, 2006 at 08:41:55AM -0400, Alvaro Herrera wrote: > The test for database-wide vacuum is: > > database age > big_constant > > where: > > big_constant = (MaxTransactionId >> 3) * 3 - 100000) = 1610512733 Ok, I'll bite... any idea how (MaxTransactionId >> 3) * 3 was chosen? I don't see anything about it in vacuum.c... Also, maybe that should be defined in one place rather than duplicating it in autovacuum.c? -- 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
