presto-spi/src/main/java/io/prestosql/spi/statistics/ColumnStatistics.java/ColumnStatistics/equals
class ColumnStatistics:    @Override
    public boolean equals(Object o)
    {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }
        ColumnStatistics that = (ColumnStatistics) o;
        return Objects.equals(nullsFraction, that.nullsFraction) &&
                Objects.equals(distinctValuesCount, that.distinctValuesCount) &&
                Objects.equals(dataSize, that.dataSize) &&
                Objects.equals(range, that.range);
    }