On Mon, Oct 9, 2023 at 4:25 PM Jeff Davis <pgsql@j-davis.com> wrote: > Another thing to consider is that using a GUC for binary formats is a > protocol change in a way that client_encoding is not. The existing > documentation for the protocol already specifies when binary formats > will be used, and a GUC would change that behavior. We absolutely would > need to update the documentation, and clients (like psql) really should > be updated.
I think the idea of using a new parameterFormat value is a good one. Let 0 and 1 continue to mean what they mean, and let clients opt in to the new mechanism if they're aware of it.
Correct me if I am wrong, but the client has to request this. So I'm not sure how we would be surprised ?
