morrySnow commented on code in PR #64531:
URL: https://github.com/apache/doris/pull/64531#discussion_r3412663027
##########
fe/fe-core/src/main/java/org/apache/doris/nereids/rules/expression/ExpressionNormalization.java:
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@@ -67,7 +68,10 @@ public class ExpressionNormalization extends
ExpressionRewrite {
LogToLn.INSTANCE,
ConcatWsMultiArrayToOne.INSTANCE,
TimestampToAddTime.INSTANCE,
- FoldConstantRule.INSTANCE,
+ FoldConstantRule.INSTANCE
+ ),
+ NullIfToIf.INSTANCE,
Review Comment:
如果要做这个改写，我建议在plan builder的时候就搞。这里一直想这么改，还没来得及动
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