Function only_available_with_csv

src/sql/src/plan/statement/dml.rs:1965–1970

(option: Option<T>, param: &str)

    options: CopyOptionExtracted,
) -> Result<Plan, PlanError> {
    fn only_available_with_csv<T>(option: Option<T>, param: &str) -> Result<(), PlanError> {
        match option {
            Some(_) => sql_bail!("COPY {} available only in CSV mode", param),
            None => Ok(()),
        }
    }

    let source = match target {
        CopyTarget::Stdin => CopyFromSource::Stdin,