presto-orc/src/main/java/io/prestosql/orc/metadata/statistics/StringStatistics.java/StringStatistics/equals
class StringStatistics:    @Override
    public boolean equals(Object o)
    {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }
        StringStatistics that = (StringStatistics) o;
        return Objects.equals(minimum, that.minimum) &&
                Objects.equals(maximum, that.maximum) &&
                Objects.equals(sum, that.sum);
    }