presto-main/src/main/java/io/prestosql/cost/StatisticRange.java/StatisticRange/overlapPercentWith
class StatisticRange:    public double overlapPercentWith(StatisticRange other)
    {
        requireNonNull(other, "other is null");

        if (this.isEmpty() || other.isEmpty() || this.distinctValues == 0 || other.distinctValues == 0) {
            return 0.0; // zero is better than NaN as it will behave properly for calculating row count
        }

        if (this.equals(other)) {
            return 1.0;
        }

        double lengthOfIntersect = min(this.high, other.high) - max(this.low, other.low);
        if (isInfinite(lengthOfIntersect)) {
            if (isFinite(this.distinctValues) && isFinite(other.distinctValues)) {
                return min(other.distinctValues / this.distinctValues, 1);
            }
            return INFINITE_TO_INFINITE_RANGE_INTERSECT_OVERLAP_HEURISTIC_FACTOR;
        }
        if (lengthOfIntersect == 0) {
            return 1 / max(this.distinctValues, 1);
        }
        if (lengthOfIntersect < 0) {
            return 0;
        }
        if (isInfinite(length()) && isFinite(lengthOfIntersect)) {
            return INFINITE_TO_FINITE_RANGE_INTERSECT_OVERLAP_HEURISTIC_FACTOR;
        }
        if (lengthOfIntersect > 0) {
            return lengthOfIntersect / length();
        }

        return NaN;
    }