Richard Yen provides a write-back system for analysts:
I recently wrote a post about WAL log shipping and how a standby built on log shipping is a great way to give data analysts production data without putting the primary at risk. Having access to the production data in this way is great, but it’s read-only. How can we create views of this data for better analytics work? I want to make the case today that Foreign Data Wrappers and Materialized Views can make a great solution – not only in accessing production Postgres data, but also working with other data sources.
Click through for an architectural discussion of how they can work together.