Function get_offset_index

parquet/src/arrow/push_decoder/reader_builder/data.rs:224–233

(
    parquet_metadata: &ParquetMetaData,
    row_group_idx: usize,
)

}

fn get_offset_index(
    parquet_metadata: &ParquetMetaData,
    row_group_idx: usize,
) -> Option<&[OffsetIndexMetaData]> {
    parquet_metadata
        .offset_index()
        // filter out empty offset indexes (old versions specified Some(vec![]) when no present)
        .filter(|index| !index.is_empty())
        .map(|x| x[row_group_idx].as_slice())
}