Comment by ianburrell

Can Plan 9 do transactions? If so, it is unsuitable for being a database. It can run databases, because those can work without transactions. But can't do native writes without them. Can it do transactional reads? How would you represent isolation levels?

How do you do a join on Plan 9? I get the impression that these are coded in each client. But complicated queries need indexes and optimizer. SQL database has advantage that can feed it and it figures out the plan.