morrySnow commented on code in PR #29609:
URL: https://github.com/apache/doris/pull/29609#discussion_r1444240793
##########
fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/functions/scalar/NonNullable.java:
##########
@@ -39,4 +43,9 @@ public FunctionSignature customSignature() {
return FunctionSignature.ret(dataType).args(dataType);
}
+ @Override
+ public Expression withChildren(List<Expression> children) {
+ Preconditions.checkArgument(children.size() == 1);
Review Comment:
add check msg
##########
fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/functions/scalar/Nullable.java:
##########
@@ -39,4 +43,9 @@ public FunctionSignature customSignature() {
return FunctionSignature.ret(dataType).args(dataType);
}
+ @Override
+ public Expression withChildren(List<Expression> children) {
+ Preconditions.checkArgument(children.size() == 1);
Review Comment:
add check msg
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