> > John Oyler wrote: > > I can create one or more domains, and use those to create the >> composite type from. But each domain can only be constrained in its >> own value, I can't constrain element #1's value based on what element >> #2's value is. >> >> If I create a domain from a composite, it will complain with a "ERROR: >> cdt.instant_message is not a valid base type for a domain" error. >> >> I can't create a trigger for a composite either (technically it's not >> a table, but I was hoping it might be treated as one internally). >> >> Is there any way to do this? Are there any plans to change or expand >> this functionality in the future? >> >> Thanks, >> John O. >> > > For now you have to put all checks in custom constructor functions. > > Scott >
I must not be looking in the right place... the only thing I can find that seems remotely related, is the page on input/output functions for custom types. And I was under the impression that only applies to non-composite custom types. Did I miss something? Thanks, John O.
