Method new

src/sql/src/func.rs:246–259

(f: F)

impl<R> Operation<R> {
    fn new<F>(f: F) -> Operation<R>
    where
        F: Fn(
                &ExprContext,
                Vec<CoercibleScalarExpr>,
                &ParamList,
                Vec<ColumnOrder>,
            ) -> Result<R, PlanError>
            + Send
            + Sync
            + 'static,
    {
        Operation(Box::new(f))
    }

    /// Builds an operation that takes no arguments.
    fn nullary<F>(f: F) -> Operation<R>