Real-Time Medical Device Data Streaming Architecture

Architect a high-performance PostgreSQL schema for ingesting continuous time-series data from IoT medical devices (e.g., continuous glucose monitors, heart rate trackers). Design a solution that can handle 1000+ concurrent device connections, supports sub-second write latency, implements automatic data retention policies, and enables complex temporal analytics. Include strategies for horizontal scaling, compression, and efficient indexing of high-velocity medical sensor data.