Re: Violation of non existing reference

js@deriva.de writes:
> It's Version 8.3.
> Both columns are of a user defined datatype which is a varchar(12)
> with a special check.

You mean a DOMAIN, or you mean a special datatype with custom C code?
If the latter, I'd suspect the C code.  8.3 has more stringent coding
rules for variable-length datatypes than prior releases did.

            regards, tom lane