OptionalclientClient-assigned query/request id.
OptionalconnectionServer-assigned connection id for connection-scoped messages.
OptionalinlineMaximum rows the prepare response may carry inline. Unset uses the server setting.
Client-chosen query id used by fetch, cancel, and acknowledgement requests. Must be nonzero for client queries.
SQL text to execute.
Concrete message type id.
Request to prepare and execute SQL.