Please avoid top-posting. > PG VERSION : PPAS 9.3 , enterprisedb > os version : 2.6.32-358.el6.x86_64
This is EnterpriseDB's fork of Postgres. Until it can be proved that a corruption has happened using the community code, it is going to be hard to say if the problem comes from PostgreSQL itself or from something that has been changed there. -- Michael