Function get_col

datafusion/datasource-avro/src/source.rs:277–282

(
        batch: &'a RecordBatch,
        col: (usize, &Field),
    )

    }

    fn get_col<'a, T: 'static>(
        batch: &'a RecordBatch,
        col: (usize, &Field),
    ) -> Option<&'a T> {
        batch.column(col.0).as_any().downcast_ref::<T>()
    }

    #[test]
    fn test_avro_basic() {