ROLLBACK automatically

Hi you all!

I nedd to figure out how to instruct PostgreSQL to ROLLBACK automatically when
something goes bad within a transaction (i.e. it fell in *ABORT STATE*).

Do you think a trigger will do?

Do you thing only a hack will do? (Like calling the rollback code after calling
the aborting code)

Or is there a set I don't know about?

Thanx!!

Cheers,
Haroldo.
-- 
----------------------+------------------------
 Haroldo Stenger      | hstenger@ieee.org
 Montevideo, Uruguay. | hstenger@adinet.com.uy
----------------------+------------------------
 Visit UYLUG Web Site: http://www.linux.org.uy
-----------------------------------------------