Hi, Nicolas Barbier wrote: > The specifics of relation databases can be entirely ignored in case > serializability is provided on the "page layer" level.
Aha, I now see very vaguely how that could work, yes. Thank you for elaborating on this. I agree that this isn't the best way forward for Postgres. >> As this seems to be an optimization of predicate locking, don't we need >> to implement that first? > > Whole-table locking is a trivial implementation of predicate locking. ..and whole-database locking is a trivial implementation of true serializability. In a way, both are optimizations of that trivial implementation. My point is that due to that dependency, the conceptual design of a solution for predicate locking (with acceptable performance) should at least be considered before going into details with true serializability. Regards Markus Wanner -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
