docs: public static long getTimestampMillis(Binary timestampBinary)
      {
          if (timestampBinary.length() != 12) {
              throw new PrestoException(HIVE_BAD_DATA, "Parquet timestamp must be 12 bytes, actual " + timestampBinary.length());
          }
          byte[] bytes = timestampBinary.getBytes();
  
          // little endian encoding - need to invert byte order
          long timeOfDayNanos = Longs.fromBytes(bytes[7], bytes[6], bytes[5], bytes[4], bytes[3], bytes[2], bytes[1], bytes[0]);
          int julianDay = Ints.fromBytes(bytes[11], bytes[10], bytes[9], bytes[8]);
  
          return julianDayToMillis(julianDay) + (timeOfDayNanos / NANOS_PER_MILLISECOND);
      }