Function cast_list_column

datafusion/common/src/nested_struct.rs:206–234

(
    source_col: &ArrayRef,
    target_inner_field: &FieldRef,
    cast_options: &CastOptions,
)

}

fn cast_list_column<O: arrow::array::OffsetSizeTrait>(
    source_col: &ArrayRef,
    target_inner_field: &FieldRef,
    cast_options: &CastOptions,
) -> Result<ArrayRef> {
    let source_list = source_col
        .as_any()
        .downcast_ref::<GenericListArray<O>>()
        .ok_or_else(|| {
            crate::error::DataFusionError::Plan(format!(
                "Expected list array but got {}",
                source_col.data_type()
            ))
        })?;

    let cast_values = cast_column(
        source_list.values(),
        target_inner_field.data_type(),
        cast_options,
    )?;

    let result = GenericListArray::<O>::new(
        Arc::clone(target_inner_field),
        source_list.offsets().clone(),
        cast_values,
        source_list.nulls().cloned(),
    );
    Ok(Arc::new(result))
}

fn cast_list_view_column<O: arrow::array::OffsetSizeTrait>(
    source_col: &ArrayRef,