"Michael Kappler" <ComputerChemist(at)aol(dot)com> writes:
> I compiled/linked a shared object against 7.4.5. My customer installed into
> PostgreSQL 8.1beta1. My functions that return as integer[] give an empty
> string (1 row) instead of the correct result (e.g., {{2,7}{4,5}}. Do I need
> to recompile/link against 8.1 headers/objects?
Yes.
> FWIW, my 7.4.5 .so works in PostgreSQL 8.0.3.
Pure luck. We never guarantee binary compatibility across major releases.
regards, tom lane