How Do I Monitor Schema Changes in a Data Warehouse?

You monitor schema changes in a data warehouse by periodically querying metadata catalogs (like INFORMATION_SCHEMA ), subscribing to event-driven notifications, or comparing structural hashes of your tables over time. Each method trades off between detection latency, implementation complexity, and warehouse compatibility. Schema changes are the silent killers of data pipelines. A column rename, a type change from INTEGER to VARCHAR , or a dropped table can cascade through downstream models, dash