private static ParquetValueWriters.PrimitiveWriter<Decimal> decimalAsLong(
      ColumnDescriptor desc, int precision, int scale) {
    return new AdaptHiveSparkParquetWriters.LongDecimalWriter(desc, precision, scale);
  }
Writes Julian day and nanoseconds in a day from the number of microseconds

@param value epoch time in microseconds
amoro-format-mixed/amoro-mixed-spark/v3.5/amoro-mixed-spark-3.5/src/main/java/org/apache/iceberg/spark/data/AdaptHiveSparkParquetWriters.java