Herouth Maoz <herouth@oumail.openu.ac.il> writes:
>> The problem is - I cannot start the frontend psql and have following
>> error messages:
>> Connection to database 'postgres' failed.
>> Unsupported frontend protocol.
> The protocol that frontend applications (relying on libraries) use has
> changed some time around 6.4. The message probably means that the frontend
> applications are linked with the newer libraries, and your old 6.3.2
> database can't understand them.
Yes, exactly. You'll need to use a 6.3.2 psql (or at least a 6.3.2
libpq) to talk to your old server. The newer servers still talk to
old clients, but not vice versa...
regards, tom lane
