On Thu, Oct 27, 2005 at 02:21:15PM +0100, Richard Huxton wrote: > So - if your statement contains something non-deterministic that isn't > catered for in Mysql's code then it will break. > > At it's simplest - if I write a function my_random() and then do: > UPDATE foo SET a=1 WHERE b < my_random(); > IF my_random() returns different results on different machines, then the > replication will be broken. See the manual entry below: > http://dev.mysql.com/doc/refman/5.0/en/replication-features.html > > That's not to say the system is worthless - it works fine for many > people. But it does have limitations.
And you can easily have multi-master syncronous replication in PostgreSQL using the same idea; just see pgCluster. -- 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 4: Have you searched our list archives? http://archives.postgresql.org
