Function remove_list_null_values

datafusion/common/src/utils/mod.rs:1121–1130

For lists and large lists, truncates the sublist of null values Otherwise returns an error

(array: &ArrayRef)

/// For lists and large lists, truncates the sublist of null values
/// Otherwise returns an error
pub fn remove_list_null_values(array: &ArrayRef) -> Result<ArrayRef> {
    // todo: handle list view and map
    match array.data_type() {
        DataType::List(_) => Ok(Arc::new(truncate_list_nulls(array.as_list::<i32>())?)),
        DataType::LargeList(_) => {
            Ok(Arc::new(truncate_list_nulls(array.as_list::<i64>())?))
        }
        dt => _exec_err!("expected List or LargeList, got {dt}"),
    }
}

/// Create a new list array where all the nulls point to empty lists
fn truncate_list_nulls<O: OffsetSizeTrait>(