"Lee Wu" <Lwu(at)mxlogic(dot)com> writes:
> I have some C functions (was compiled against 7.3.2, I think)
> Do I need to re-compile C functions against 7.4.3
Yes. You can hardly ever expect to move C functions across PG major
versions without at least recompiling them. (We try not to break
the source code unnecessarily, but binary compatibility is never
promised.)
regards, tom lane