Supporting Postgres Named Prepared Statements in Hyperdrive

This post details the implementation of named prepared statements for Postgres protocol within Cloudflare Hyperdrive. It explains the challenges of buffering Postgres messages for caching, managing session-scoped prepared statements across pooled connections, and the logic for handling Parse, Bind, Execute, and Sync messages. The solution involves in-memory storage of parsed statements and logic to serve cached results or proxy to origin connections.