Mario Jorge Nunes Filipe <mjnf(at)uevora(dot)pt> writes:
> Is there a way to connect a 7.x psql to a 6.x postgres?
Should work, for the most part, though you may find problems with some
backslash commands because of changes in the system catalog layout.
> One of my coworkers is trying to do that but he always get's some error
> about multibyte strings.
Ignore it; or recompile psql with the same MULTIBYTE compile option that
was used for the old server.
regards, tom lane