We have the "coverity" tool setup and are trying to find a way to backup the database to a file, it uses I believe PostgreSQL. How can we do this, is it using its own independent installation of PostgreSQL?
If it does use PostgreSQL, then there should be a pg_dump utility somewhere in the PostgreSQL installation.
Taking backups using pg_dump is very well explained in the manual:
http://www.postgresql.org/docs/current/static/backup-dump.html
http://www.postgresql.org/docs/current/static/app-pgdump.html