新手问题 psql -U postgres 出的问题
psql (9.1.5, server 9.2.4) WARNING: psql version 9.1, server version 9.2. Some psql features might not work.
psql (9.1.5, server 9.2.4) WARNING: psql version 9.1, server version 9.2. Some psql features might not work.