Function checkByCompressedReadBuffer

programs/check-marks/CheckMarks.cpp:21–54

  */

static void checkByCompressedReadBuffer(const std::string & mrk_path, const std::string & bin_path)
{
    DB::ReadBufferFromFile mrk_in(mrk_path);
    DB::CompressedReadBufferFromFile bin_in(DB::createReadBufferFromFileBase(bin_path, /* settings= */ {}));

    DB::WriteBufferFromFileDescriptor out(STDOUT_FILENO);
    bool mrk2_format = mrk_path.ends_with(".mrk2");

    for (size_t mark_num = 0; !mrk_in.eof(); ++mark_num)
    {
        UInt64 offset_in_compressed_file = 0;
        UInt64 offset_in_decompressed_block = 0;
        UInt64 index_granularity_rows = 0;

        DB::readBinary(offset_in_compressed_file, mrk_in);
        DB::readBinary(offset_in_decompressed_block, mrk_in);

        out << "Mark " << mark_num << ", points to " << offset_in_compressed_file << ", " << offset_in_decompressed_block;

        if (mrk2_format)
        {
            DB::readBinary(index_granularity_rows, mrk_in);

            out << ", has rows after " << index_granularity_rows;
        }

        bin_in.seek(offset_in_compressed_file, offset_in_decompressed_block);
        out << ", decompressed size " << bin_in.available();

        out << ".\n" << DB::flush;

        out.finalize();
    }
}


int mainEntryClickHouseCheckMarks(int argc, char ** argv);