Function scan_file_ranges

pub(crate) fn scan_file_ranges(
    stream_ctx: Arc<StreamContext>,
    part_metrics: PartitionMetrics,
    index: RowGroupIndex,
    read_type: &'static str,
    range_builder: Arc<RangeBuilderList>,
) -> impl Stream<Item = Result<Batch>>

Scans file ranges at index.