How to Use the Postgres Database Wizard in Nagios XI

Nagios XI includes a Postgres Database wizard that enables you to easily connect to PostgreSQL instances and quickly configure monitoring of availability, query time/results, connections and locks, replication/WAL lag, table/index bloat, and disk/storage usage.

You can refer to this documentation for full details:

Here is a direct link to the PDF as well:

How To Monitor PostgreSQL Databases And Servers With Nagios XI