Teodor Sigaev <teodor(at)sigaev(dot)ru> writes:
> Layout of GIST_SPLITVEC struct has been changed from 8.0, I'm afraid that old
> .so is used. spl_(right|left)valid fields was added to GIST_SPLITVEC.
Does look a bit suspicious ... Robert, are you *sure* you've got the
right version of pgsphere linked in? Did you compile it against the
right set of Postgres header files?
regards, tom lane