Tatsuo Ishii <ishii(at)postgresql(dot)org> writes:
> I have seen this with git master head:
> $ pg_dump test
> :
> :
> :
> COPY insert_lock (reloid) FROM stdin;
> pg_dump: [archiver] internal error -- WriteData cannot be called outside the context of a DataDumper routine
hm, it works for me. You might need to do "make clean all" in
src/bin/pg_dump?
regards, tom lane