SQL92 (the former defines a much more ambitious subset of views that
need to be updatable).
Views / Rules
=============
-* Automatically create rules on views so they are updateable, per SQL92 [view]
+* Automatically create rules on views so they are updateable, per SQL99 [view]
* Add the functionality for WITH CHECK OPTION clause of CREATE VIEW
* Allow NOTIFY in rules involving conditionals
* Have views on temporary tables exist in the temporary namespace