PostgreSQL Foreign Data Wrappers (FDW) allow you to access and query data from external sources as if they were local tables.

When managing PostgreSQL databases, monitoring running queries is essential for performance tuning and troubleshooting.

Setting up a modern data lake architecture combining MinIO for object storage, PostgreSQL for metadata, and DuckLake for lakehouse functionality.

When running servers with high thermal loads or in noisy environments, managing fan speeds intelligently becomes crucial.

When monitoring ZFS storage systems with Prometheus, protecting sensitive filesystem metrics is crucial.