"Iain" <iain(at)mst(dot)co(dot)jp> writes:
> IIRC there has been a bug fix to the COPY command, regarding handling
> backslashed Ns or something like that sometime between 7.1 and 7.4, if I
> dump the 7.1 db with the 7.4 version of pg_dump then do I get the fixes to
> COPY?
My recollection is that some of those changes were on the backend side,
and so they would affect the COPY data that pg_dump transcribes to the
dump file. Using the newer pg_dump will not make you any worse off
AFAIR, but it's not a magic fix for server-side bugs either ...
regards, tom lane