POSTGRESQL
PostgreSQL is an object-relational database management system (ORDBMS), which is derived from the POSTGRES package written at the University of California at Berkeley. It is now the most advanced open-source database. By default, PostgreSQL uses TCP port 5432.
Available to all SRX running 12.3X48+
Available to all MX running 20.2R1+
Available to all vSRX running 20.3R1+