> It must be a setting, not a version.
>
> For instance suppose you have a session table for your website and a
> users table.
>
> - Having ACID on the users table is of course a must ;
> - for the sessions table you can drop the "D"
You're trying to solve a different use-case than the one I am.
Your use-case will be solved by global temporary tables. I suggest that
you give Robert Haas some help & feedback on that.
My use case is people using PostgreSQL as a cache, or relying entirely
on replication for durability.
--
-- Josh Berkus
PostgreSQL Experts Inc.
http://www.pgexperts.com