* David Fetter <david at fetter.org> [061201 18:06]:
> On Fri, Dec 01, 2006 at 11:52:04AM -0500, Jan Wieck wrote:
> > On 12/1/2006 11:09 AM, David Fetter wrote:
> > 
> > Statement based replication in an MVCC system is error prone!
> > 
> > Just consider the following little flow of events:
> > 
> > X1: begin;
> > X1: set transaction isolation level read committed;
> > X2: begin;
> > X2: set transaction isolation level read committed;
> > X1: update foo set bar = 1 where baz = 5;
> > X1: commit;
> > X2: update foo set bar = 2 where baz < 20;
> > X2: commit;
> > 
> > In a concurrent environment, you have a race condition between X1's
> > update and X2's update. How do you know exactly which one happened
> > first in the database?
> > 
> > And now add 10 other transactions updating foo to that.
> 
> Alrighty.  The problem at hand is, "how do I get 1024 copies of a
> database?"  Do you have some insight into how to do this with Slony-I?
Shipout the sql statements needed via slon -a
Distribute them yourself.

Andreas