Agreed. This is fairly egregious misconfiguration. But it's also unsafe from the Go client/ connection pool to expect idle sockets to stay open indefinitely --

Agreed. This is fairly egregious misconfiguration. But it's also unsafe from the Go client/ connection pool to expect idle sockets to stay open indefinitely -- any firewall or network appliance traversal would be highly likely to invalidate that. Basic database connection pooling. Sigh.