Function list_values

datafusion/common/src/utils/mod.rs:1073–1082

Returns the inner values of a list, or an error otherwise For [`ListArray`] and [`LargeListArray`], if it's sliced, it returns a sliced array too. Therefore, too reconstruct a list using it, you must adjust the offsets using [`adjust_offsets_for_slice`]

(array: &dyn Array)

/// sliced array too. Therefore, too reconstruct a list using it,
/// you must adjust the offsets using [`adjust_offsets_for_slice`]
pub fn list_values(array: &dyn Array) -> Result<ArrayRef> {
    match array.data_type() {
        DataType::List(_) => Ok(sliced_list_values(array.as_list::<i32>())),
        DataType::LargeList(_) => Ok(sliced_list_values(array.as_list::<i64>())),
        DataType::FixedSizeList(_, _) => {
            Ok(Arc::clone(array.as_fixed_size_list().values()))
        }
        other => _exec_err!("expected list, got {other}"),
    }
}

fn sliced_list_values<O: OffsetSizeTrait>(list: &GenericListArray<O>) -> ArrayRef {
    let values = list.values();