Re: Trigger question

In article <1022542776.20040115180811@evilazrael.de>,
Evil Azrael <evilazrael@evilazrael.de> writes:

> That not, but perhaps a STATEMENT Level Trigger could help. It´s a new
> feature in 7.4.x and rather undocumented. http://www.postgresql.org/docs/current/interactive/sql-createtrigger.html
> "FOR EACH STATEMENT" probably this can help you a bit.

Does anyone know how to access the affected values for statement-level
triggers?  I mean what the "old" and "new" pseudo-records are for
row-level triggers.