sql dump

Hi all,

Is it possible to perform an SQL Dump without using pg_dump?

I have a special case situation wherein my application has access to a
remotely-hosted PG (8.3) database, but does not have access to its
admin tools.  (There's a longer backstory here that I'm happy to
explain if necessary.)  I'm looking for an efficient way to dump all
the data in the DB without having to SELECT * on each table.

Thanks in advance!
Scott