presto-spi/src/main/java/io/prestosql/spi/block/SingleRowBlock.java/SingleRowBlock/getSizeInBytes
class SingleRowBlock:    @Override
    public long getSizeInBytes()
    {
        long sizeInBytes = 0;
        for (int i = 0; i < fieldBlocks.length; i++) {
            sizeInBytes += getRawFieldBlock(i).getRegionSizeInBytes(rowIndex, 1);
        }
        return sizeInBytes;
    }