Unlocking Interoperability: A Guide to Foreign Data Wrappers in PostgreSQL and Aurora PostgreSQL AWS RDS
As a database professional, I often encounter scenarios where data is fragmented across various systems. In today’s distributed IT landscape, it’s not uncommon for critical business information to reside in different databases, perhaps an on-premise PostgreSQL instance for legacy applications, and an Aurora PostgreSQL AWS RDS cluster powering new microservices. The challenge then becomes how to seamlessly integrate and query this disparate data without resorting to complex ETL processes or data duplication. This is precisely where Foreign Data Wrappers (FDWs) in PostgreSQL become an invaluable