presto-spi/src/main/java/io/prestosql/spi/block/RunLengthEncodedBlock.java/RunLengthEncodedBlock/writeBytesTo
class RunLengthEncodedBlock:    @Override
    public void writeBytesTo(int position, int offset, int length, BlockBuilder blockBuilder)
    {
        checkReadablePosition(position);
        value.writeBytesTo(0, offset, length, blockBuilder);
    }