PostgreSQL Logical Replication

PostgreSQL Logical Replication is a method that allows selective sharing of database data between systems. Instead of copying entire databases, it replicates specific tables or changes originating from one PostgreSQL server (the publisher) to another (the subscriber). This process enables real-time synchronization, making it ideal for scaling, backups, or data integration tasks. It operates by sending change data (like inserts, updates, deletes) as logical statements, allowing for flexible replication configurations without needing identical environments. Overall, it provides a controlled, efficient way to keep databases aligned while maintaining independence.