The blog post discusses the setup and functionality of a Couchbase Analytics cluster, demonstrating how it can be used to create real-time visualization dashboards with tools like Tableau. Couchbase Server, a hybrid NoSQL database, supports both operational and analytical workloads, and its version 6.0 introduces "NoETL for NoSQL," allowing ad-hoc analytical queries on JSON data without requiring data transformation. The blog presents a demo scenario involving a fictitious car fleet management company, showcasing how operational data from cars can be analyzed in real-time without affecting data transmission. The post details the process of setting up a Couchbase Analytics cluster in just five clicks, importing datasets, creating shadow datasets for analytics, and exploring the data using SQL-like queries. It further explains connecting Tableau with Couchbase Analytics to create a real-time dashboard, emphasizing the challenges enterprises face in operational analytics and how Couchbase's hybrid architecture addresses these by simplifying analytics without the need for data lakes and complex ETL processes.