Method with_window_function

datafusion/sql/tests/common/mod.rs:96–100

(mut self, window_function: Arc<WindowUDF>)

    }

    pub fn with_window_function(mut self, window_function: Arc<WindowUDF>) -> Self {
        self.window_functions
            .insert(window_function.name().to_string(), window_function);
        self
    }

    pub fn with_higher_order_function(
        mut self,