> Possibly the folks on pgsql-jdbc could help you with > that. > > regards, tom lane sincere thanks to you tom lane I checked all the shell programs in the system which running standalone from SUN application server. Finally find the answer. One of those shell programs uses an old JDBC driver(jdbc7.1-1.2.jar). anyway thank you again for your help. ---------------------------(end of broadcast)--------------------------- TIP 3: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faq