presto-orc/src/main/java/io/prestosql/orc/metadata/statistics/ColumnStatistics.java/ColumnStatistics/toString
class ColumnStatistics:    @Override
    public String toString()
    {
        return toStringHelper(this)
                .omitNullValues()
                .add("numberOfValues", getNumberOfValues())
                .add("booleanStatistics", booleanStatistics)
                .add("integerStatistics", integerStatistics)
                .add("doubleStatistics", doubleStatistics)
                .add("stringStatistics", stringStatistics)
                .add("dateStatistics", dateStatistics)
                .add("decimalStatistics", decimalStatistics)
                .add("binaryStatistics", binaryStatistics)
                .add("bloomFilter", bloomFilter)
                .toString();
    }