<tom@minnesota.com> writes:
> Could it be related to the fact that in 7.2 and earlier, didn't use the flag:
> --enable-multibyte
> I only started using --enable-multibyte in 7.2.3.
Oh? Are you sure you've been consistent about using --enable-multibyte?
I am suddenly wondering about the possible consequences of psql compiled
with multibyte used with a libpq.so compiled without, or vice versa.
I don't believe that we'd see these consequences for psql and backend
not compiled the same way; those combinations are reasonably well
tested. I'm less sure about psql-to-libpq.so incompatibilities, though.
regards, tom lane