Re: custom C function problem

"Dan \"Heron\" Myers" <heron@xnapid.com> writes:
> One case that fails is essentially copied from the V1 section in the
> documentation:

Well, there's nothing wrong with that C code, so the problem is
someplace else.

Did you remember to declare the function STRICT?  If not, and if
there are any nulls in your test table, a crash would be expected;
there's nothing in this function that's guarding against a null
pointer dereference.

            regards, tom lane