BiteTheDDDDt commented on code in PR #21559:
URL: https://github.com/apache/doris/pull/21559#discussion_r1257639210
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fe/fe-core/src/main/java/org/apache/doris/nereids/stats/ExpressionEstimation.java:
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@@ -172,6 +172,10 @@ public ColumnStatistic visitSlotReference(SlotReference
slotReference, Statistic
public ColumnStatistic visitBinaryArithmetic(BinaryArithmetic
binaryArithmetic, Statistics context) {
ColumnStatistic leftColStats = binaryArithmetic.left().accept(this,
context);
ColumnStatistic rightColStats = binaryArithmetic.right().accept(this,
context);
+ if (leftColStats == null || rightColStats == null) {
+ return ColumnStatistic.UNKNOWN;
+ }
Review Comment:
I ran into this problem during development, but then it didn't reappear. I
currently removed this code
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