Method call

datafusion/expr/src/udf.rs:172–177

Returns a [`Expr`] logical expression to call this UDF with specified arguments. This utility allows easily calling UDFs # Example ```no_run use datafusion_expr::{col, lit, ScalarUDF}; # fn my_udf() -> ScalarUDF { unimplemented!() } let my_func: ScalarUDF = my_udf(); // Create an expr for `my_func(a, 12.3)` let expr = my_func.call(vec![col("a"), lit(12.3)]); ```

(&self, args: Vec<Expr>)

    /// let expr = my_func.call(vec![col("a"), lit(12.3)]);
    /// ```
    pub fn call(&self, args: Vec<Expr>) -> Expr {
        Expr::ScalarFunction(crate::expr::ScalarFunction::new_udf(
            Arc::new(self.clone()),
            args,
        ))
    }

    /// Returns this function's name.
    ///