englefly commented on code in PR #18596:
URL: https://github.com/apache/doris/pull/18596#discussion_r1166322983
##########
fe/fe-core/src/main/java/org/apache/doris/nereids/stats/StatsMathUtil.java:
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@@ -59,4 +64,21 @@ public static double divide(double a, double b) {
return a / nonZeroDivisor(b);
}
+ /**
+ * compute the multi columns unite ndv
+ */
+ public static double multiNdv(List<Double> ndvs) {
Review Comment:
how about rename to accumulativeNdv or jointNdv ?
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