> Perhaps Erick is using a tool which manipulates system tables directly? ;-)

I've used IBExpert, but I don't think it's manipulating system tables
without telling me. :)
I did not enable the option to allow it.

I think the command it sent to the database was a simple:

ALTER DOMAIN MY_DOMAIN TYPE NUMERIC(15,2);

And it worked.

--
Erick Sasse