presto-spi/src/main/java/io/prestosql/spi/type/SqlVarbinary.java/SqlVarbinary/toString
class SqlVarbinary:    @Override
    public String toString()
    {
        StringBuilder builder = new StringBuilder();

        for (int i = 0; i < bytes.length; ++i) {
            if (i != 0) {
                if (i % 32 == 0) {
                    builder.append("\n");
                }
                else if (i % 8 == 0) {
                    builder.append(WORD_SEPARATOR);
                }
                else {
                    builder.append(BYTE_SEPARATOR);
                }
            }

            builder.append(format("%02x", bytes[i] & 0xff));
        }
        return builder.toString();
    }