Method register_udwf

datafusion/execution/src/task.rs:222–228

(&mut self, udwf: Arc<WindowUDF>)

        Ok(self.aggregate_functions.insert(udaf.name().into(), udaf))
    }
    fn register_udwf(&mut self, udwf: Arc<WindowUDF>) -> Result<Option<Arc<WindowUDF>>> {
        udwf.aliases().iter().for_each(|alias| {
            self.window_functions
                .insert(alias.clone(), Arc::clone(&udwf));
        });
        Ok(self.window_functions.insert(udwf.name().into(), udwf))
    }
    fn register_udf(&mut self, udf: Arc<ScalarUDF>) -> Result<Option<Arc<ScalarUDF>>> {
        udf.aliases().iter().for_each(|alias| {
            self.scalar_functions