Function arrow2::io::parquet::read::decompress

pub fn decompress(
    compressed_page: CompressedDataPage, 
    buffer: &mut Vec<u8, Global>
) -> Result<DataPage, ParquetError>

Decompresses the page, using buffer for decompression. If page.buffer.len() == 0, there was no decompression and the buffer was moved. Else, decompression took place.