[SQLObject] how to handle boolean and other types provided by DBMS?

Oops, another question--am I pushing my luck too far?

How do I best represent booleans with SQLObject?  PostgreSQL has a
boolean type (see
http://www.postgresql.org/docs/view.php?version=7.3&idoc=1&file=datatype-boolean.html)...

And there are many other highly interesting types such as geometric
types that I likely use in my current app.  [Yes, I marry PostgreSQL
for this app--no need to ease migration to other dbms].  

Maybe, it would be possible to add yet another subclass to Col that
has an "sqlType" keyword attribute and simply passes on what is
written there to the DBMS.  This would allow to take advantage of
"advanced" types that some DBMS provide.

Well, I'll better try to stop for today before you drop me off the
list...

--b


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