How to Distribute Postgres Geographically

practical walkthrough of geo-distributing postgres for multi-tenant systems without requiring specialized db features. the pattern is straightforward: segment by tenant, keep control plane centralized, use fdw for cross-region views. hits real constraints (latency, data residency, edge computing) without overselling—acknowledges that single-region works fine for most apps. the notion clone example effectively shows when this applies and when it doesn’t. tradeoff analysis is refreshing: auth ops slower from central region, but they’re rare enough to not matter. assumes you can cleanly partition by tenant, which is the real prerequisite, not the distribution itself.