presto-spi/src/main/java/io/prestosql/spi/block/LazyBlockEncoding.java/LazyBlockEncoding/readBlock
class LazyBlockEncoding:    @Override
    public Block readBlock(BlockEncodingSerde blockEncodingSerde, SliceInput input)
    {
        // We write the actual underlying block, so we will never need to read a lazy block
        throw new UnsupportedOperationException();
    }