presto-spi/src/main/java/io/prestosql/spi/statistics/ColumnStatistics.java/ColumnStatistics/setDistinctValuesCount
class ColumnStatistics:        public Builder setDistinctValuesCount(Estimate distinctValuesCount)
        {
            this.distinctValuesCount = requireNonNull(distinctValuesCount, "distinctValuesCount is null");
            return this;
        }