Andrew Sullivan wrote: > On Sun, Aug 27, 2006 at 07:39:49AM -0700, Richard Broersma Jr wrote: > > > Ah, I see. So the points is that checking the integrity between > > two complete data sets can become a preformace killer. > > Not necessarily. More exactly, building a support system that can > check such integrity in a completely general way, such that it could > be used for any arbitrary data, is a hard problem that might destroy > performance. It's also a pretty exotic feature. You might want to > ask on the -hackers list for more detail, though.
Well, it's on the SQL standard, so we should look forward to implementing (some form of) it some day. -- Alvaro Herrera http://www.CommandPrompt.com/ PostgreSQL Replication, Consulting, Custom Development, 24x7 support ---------------------------(end of broadcast)--------------------------- TIP 6: explain analyze is your friend
