Dominique Devienne <ddevienne@xxxxxxxxx> writes: > For the first time, I'm checking the OIDs returned > (via the result set's PQftype API), by "regular" SELECT: > ... > And to my surprise, they are not! > The ones from the COPY are all zeros. > Is that normal? The CopyInResponse and CopyOutResponse messages don't carry any column name or type indications, so yes it's normal. https://www.postgresql.org/docs/current/protocol-message-formats.html Maybe we missed a bet there, but AFAIR you are the first person to ask for this in twenty-plus years. regards, tom lane
