924060929 commented on code in PR #14380:
URL: https://github.com/apache/doris/pull/14380#discussion_r1026273470


##########
fe/fe-core/src/main/java/org/apache/doris/catalog/AggregateFunction.java:
##########
@@ -183,6 +183,30 @@ public AggregateFunction(FunctionName fnName, List<Type> 
argTypes,
         returnsNonNullOnEmpty = false;
     }
 
+    public AggregateFunction(FunctionName fnName, List<Type> argTypes,
+            Type retType, Type intermediateType, boolean hasVarArgs,
+            URI location, String updateFnSymbol, String initFnSymbol,
+            String serializeFnSymbol, String mergeFnSymbol, String 
getValueFnSymbol,
+            String removeFnSymbol, String finalizeFnSymbol, boolean 
ignoresDistinct,
+            boolean isAnalyticFn, boolean returnsNonNullOnEmpty, 
TFunctionBinaryType binaryType,
+            boolean userVisible, boolean vectorized, NullableMode 
nullableMode) {
+        // only `count` is always not nullable, other aggregate function is 
always nullable
+        super(0, fnName, argTypes, retType, hasVarArgs, binaryType, 
userVisible, vectorized, nullableMode);
+        setLocation(location);
+        this.intermediateType = (intermediateType.equals(retType)) ? null : 
intermediateType;
+        this.updateFnSymbol = updateFnSymbol;
+        this.initFnSymbol = initFnSymbol;
+        this.serializeFnSymbol = serializeFnSymbol;
+        this.mergeFnSymbol = mergeFnSymbol;
+        this.getValueFnSymbol = getValueFnSymbol;
+        this.removeFnSymbol = removeFnSymbol;
+        this.finalizeFnSymbol = finalizeFnSymbol;

Review Comment:
   thrift message has some required field, so we should set to it.
   In nereids, this fields usually are null or empty string, we set this fields 
in ExpressionTranslator.visitAggregateFunction()



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