Method update_batch

datafusion/functions-aggregate/src/sum.rs:416–423

(&mut self, values: &[ArrayRef])

    }

    fn update_batch(&mut self, values: &[ArrayRef]) -> Result<()> {
        let values = values[0].as_primitive::<T>();
        if let Some(x) = arrow::compute::sum(values) {
            let v = self.sum.get_or_insert_with(|| T::Native::usize_as(0));
            *v = v.add_wrapping(x);
        }
        Ok(())
    }

    fn merge_batch(&mut self, states: &[ArrayRef]) -> Result<()> {
        self.update_batch(states)