How to use

genericGetMin

method

in

org.apache.parquet.column.statistics.FloatStatistics

 @Override
 public Statistics<?> build() {
  FloatStatistics stats = (FloatStatistics) super.build();
  if (stats.hasNonNullValue()) {
   Float min = stats.genericGetMin();
   Float max = stats.genericGetMax();
   // Drop min/max values in case of NaN as the sorting order of values is undefined for this case
   if (min.isNaN() || max.isNaN()) {
    stats.setMinMax(0.0f, 0.0f);
    ((Statistics<?>) stats).hasNonNullValue = false;
   } else {
    // Updating min to -0.0 and max to +0.0 to ensure that no 0.0 values would be skipped
    if (Float.compare(min, 0.0f) == 0) {
     min = -0.0f;
     stats.setMinMax(min, max);
    }
    if (Float.compare(max, -0.0f) == 0) {
     max = 0.0f;
     stats.setMinMax(min, max);
    }
   }
  }
  return stats;
 }
}

 @Override
 public Statistics<?> build() {
  FloatStatistics stats = (FloatStatistics) super.build();
  if (stats.hasNonNullValue()) {
   Float min = stats.genericGetMin();
   Float max = stats.genericGetMax();
   // Drop min/max values in case of NaN as the sorting order of values is undefined for this case
   if (min.isNaN() || max.isNaN()) {
    stats.setMinMax(0.0f, 0.0f);
    ((Statistics<?>) stats).hasNonNullValue = false;
   } else {
    // Updating min to -0.0 and max to +0.0 to ensure that no 0.0 values would be skipped
    if (Float.compare(min, 0.0f) == 0) {
     min = -0.0f;
     stats.setMinMax(min, max);
    }
    if (Float.compare(max, -0.0f) == 0) {
     max = 0.0f;
     stats.setMinMax(min, max);
    }
   }
  }
  return stats;
 }
}

if (floatStatistics.genericGetMin() > floatStatistics.genericGetMax()) {
  failWithCorruptionException(failOnCorruptedParquetStatistics, column, id, floatStatistics);
  return Domain.create(ValueSet.all(type), hasNullValue);

if (floatStatistics.genericGetMin() > floatStatistics.genericGetMax()) {
  failWithCorruptionException(failOnCorruptedParquetStatistics, column, id, floatStatistics);
  return Domain.create(ValueSet.all(type), hasNullValue);