Problem with time in export

I've found a strange problem when dumping a database with a view that has a
comparison between relative times.

I have a database with a view that was created with the following statement:

CREATE VIEW connected_merchant AS
    SELECT    merchant_client.merchant_id, merchant_client.version,
            merchant_client.last_access_time,
            merchant_client.broker_ip_address, merchant_client.broker_port,
            merchant_client.merchant_ip_address,
            merchant_client.merchant_port, merchant_client.connection_type,
            merchant_client.polling_frequency
        FROM    merchant_client
    WHERE    merchant_client.connection_type = 'Push'
            OR
            ( merchant_client.connection_type = 'Pull'
              AND
              CURRENT_TIMESTAMP - merchant_client.last_access_time < 60 );

When I dump the database with pg_dumpall, the dump file rewrites the script to
create the view as the following statement:

CREATE VIEW "connected_merchant" as
    SELECT    merchant_client.merchant_id, merchant_client."version",
            merchant_client.last_access_time, merchant_client.broker_ip_address,
            merchant_client.broker_port, merchant_client.merchant_ip_address,
            merchant_client.merchant_port, merchant_client.connection_type,
            merchant_client.polling_frequency
    FROM    merchant_client
    WHERE     ((merchant_client.connection_type = 'Push'::"varchar")
            OR
                ((merchant_client.connection_type = 'Pull'::"varchar")
                AND
                (reltime(("timestamp"('now'::text) -
                          merchant_client.last_access_time)) < (60)::reltime)));


The problem is that if I try to restore the database from the dump file I get
the following error:

psql:/tmp/db_2002-05-02.dump:1692: ERROR:  Bad reltime external representation
'60'

Anybody knows if this a Postgres bug or if I'm doing something wrong?

Thanks.

--
Juan Jose Comellas
(juanjo@comellas.org)