Hi Sorry for my English. I'm running pgsql8.4 server on debian,the client is the python library(psycopg2) on the same mechine. The client connect server via 127.0.0.1:5432.
The psycopg2 connect function *succesed,but throw a exception * server closed the connection unexpectedly This probably means the server terminated abnormally before or while processing the request. * *