Cloudflare Hyperdrive

Edge connection pooler/proxy for databases. (Source note was a quick capture — verify details.)

Source note (raw/cloudflare/what is hyperdrive?.md):

• A single query can take ~7 round trips without it.
• With Hyperdrive, TCP, TLS, and DB auth happen in the worker (?) — uncertain; confirm.
• Provides connection pooling.
• Provides query caching.

Why it matters

Without pooling, every edge request opens a fresh DB connection (expensive TCP + TLS + auth handshake). Hyperdrive keeps a warm pool at the edge and caches repeated queries, slashing latency.

Cross-links

• Owned by Databases (pooling + caching).
• Also relevant to Networking (edge proxy, round-trip reduction).

Open questions

• Exact architecture: where the pool lives, how caching keys / invalidates.
• Supported DBs (Postgres, MySQL) and limits.
• Relationship to psql basics / connection strings.