On Fri, Sep 02, 2005 at 03:51:15PM -0400, Bruce Momjian wrote: > One possible solution is to create a phantom cid which represents a > cmin/cmax pair and is stored in local memory.
If we're going to look at doing that I think it would also be good to consider including xmin and xmax as well. This might require persisting to disk, but for transactions that touch a number of tuples it could potentially be a big win (imagine being able to shrink all 4 fields down to a single int; a 45% space reduction). -- 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 6: explain analyze is your friend