Understanding logical replication in PostgreSQL is crucial for anyone managing data across multiple Postgres instances. This blogpost from EnterpriseDB introduces the basics of logical replication, explaining how it enables selective data replication—such as inserts, updates, and deletes—between databases, even across different Postgres versions, and outlines the practical steps to set up publications and subscriptions for real-time data synchronization.

https://www.enterprisedb.com/blog/logical-replication-postgres-basics