Calendars in Postgres using Foreign Data Wrappers

PostgreSQL's Foreign Data Wrapper (FDW) functionality allows you to access data that resides outside your PostgreSQL database. This could be data in other PostgreSQL databases, other types of databases, or even other data sources like CSV files or REST APIs.

What are Foreign Data Wrappers?

Foreign Data Wrappers provide a standardized way of accessing external data sources from within PostgreSQL. They implement the SQL/MED (Management of External Data) specification, which is part of the SQL standard.

Key Benefits

• Access external data sources as if they were native PostgreSQL tables
• Join data across different data sources
• Write standard SQL queries against external data
• Leverage PostgreSQL's powerful query planner