On Thu, Jul 15, 2004 at 05:18:37PM -0400, Jim Fulton wrote: > I don't think anyone find versions useful in cases where > locks matter. With versions, if you get resource contention, > someone loses. > > Long-running subtransactions as I'm proposing would rely on mult-version > concurrency control, rather than locks. In either case, if you have > resource contention, you are probably out of luck.
Locks are important, however, in cases such as generating unique IDs based on integer attribtues in a database. This is something we never managed to sort out in IndexedCatalog, and I wonder if anyone else ever has. Take care, -- Christian Robottom Reis | http://async.com.br/~kiko/ | [+55 16] 3361 2331 _______________________________________________ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
