morrySnow commented on code in PR #36111:
URL: https://github.com/apache/doris/pull/36111#discussion_r1637432196
##########
fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/functions/ExpressionTrait.java:
##########
@@ -76,4 +76,11 @@ default String toSql() throws UnboundException {
default boolean foldable() {
return true;
}
+
+ /**
+ * Identify the expression is deterministic or not
+ */
+ default boolean isDeterministic() {
+ return true;
Review Comment:
recursive call children's isDeterministic
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