The text discusses the use of Datadog to monitor and optimize PostgreSQL databases. It covers the process of installing and configuring the Datadog Agent, as well as how to collect custom metrics and query-level insights using Datadog's Database Monitoring and APM features. The article provides step-by-step instructions on how to set up these tools, including installing the Agent, granting permissions, and configuring the database monitoring configuration file. It also explains how to use Datadog's APM feature to trace PostgreSQL queries and identify performance bottlenecks. The goal of this process is to provide a comprehensive overview of how to monitor and optimize PostgreSQL databases using Datadog.