Is there a difference in approach for other tasks compared to PostgreSQL?

Yes, the approach to solving problems can vary depending on the database management system used. PostgreSQL is a relational database with rich functionality, support for transactions, complex queries, and extensibility. For other DBMSs, such as NoSQL (MongoDB, Cassandra) or columnar (ClickHouse), approaches to data modeling, query optimization, and scaling will differ. It is important to consider the specific features of each technology when designing and analyzing systems.