Function size_after_batch

datafusion/functions-aggregate/src/first_last.rs:1782–1791

(values: &[ArrayRef])

    #[test]
    fn test_first_list_acc_size() -> Result<()> {
        fn size_after_batch(values: &[ArrayRef]) -> Result<usize> {
            let mut first_accumulator = TrivialFirstValueAccumulator::try_new(
                &DataType::List(Arc::new(Field::new_list_field(DataType::Int64, false))),
                false,
            )?;

            first_accumulator.update_batch(values)?;

            Ok(first_accumulator.size())
        }

        let batch1 = ListArray::from_iter_primitive::<Int32Type, _, _>(
            repeat_with(|| Some(vec![Some(1)])).take(10000),