Adding Foreign Key constraints outside of table def.

Hello all,

I need to add foreign key support outside of the table via the
CREATE CONSTRAINT TRIGGER .. command.

1. Is there a way to add it without worrying about the
syntax of "RI_FKey_..()" e.g. (this would be nice if it worked)

ADD CONSTRAINT $fk.LocalColumnNames FOREIGN KEY ($fk.LocalColumnNames)
REFERENCES $fk.ForeignTableName ($fk.ForeignColumnNames)
ON DELETE set null, ON UPDATE cascade;

2. assuming no for #1 (the on delete and on update is not accepted)
I need to do the following:

CREATE CONSTRAINT TRIGGER "<unnamed>" AFTER UPDATE ON "teamowner"
NOT DEFERRABLE INITIALLY IMMEDIATE FOR EACH ROW EXECUTE PROCEDURE
"RI_FKey_cascade_upd" ('<unnamed>', 'league', 'teamowner', 'UNSPECIFIED', ' leagueownerid', 'id');

The problem is that I am unable to remove the trigger <unnamed>

drop trigger name on table does not work.
I tried "unnamed", "<unnamed>"

I need to drop the triggers in case I reload the same schema.

3. If I drop a table, how come the constainsts for that
table are NOT dropped as well?

4. for circular references,
Table A references B
B references C
C references A

is it impossible to do an insert (assuming all the foreign key
constraints are set up) ?

thanks

mike