Kikyou1997 commented on code in PR #11842:
URL: https://github.com/apache/doris/pull/11842#discussion_r956611207
##########
fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/Expression.java:
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@@ -146,4 +153,34 @@ public boolean equals(Object o) {
public int hashCode() {
return 0;
}
+
+ public List<DataType> getChildrenType() {
+ List<DataType> typeList = new ArrayList<>();
+ for (Expression child : children) {
+ typeList.add(child.getDataType());
+ }
+ return typeList;
+ }
+
+ /**
+ * Collect CatalogType of children.
+ * @return Catalog type array
+ */
+ public Type[] getChildrenCatalogType() {
+ int childrenSize = children.size();
+ Type[] typeList = new Type[childrenSize];
+ for (int i = 0; i < childrenSize; i++) {
+ typeList[i] = child(i).getDataType().toCatalogDataType();
+ }
+ return typeList;
+ }
+
+ protected Function getBuiltinFunction(String name, Type[] argTypes,
Function.CompareMode mode) {
+ FunctionName fnName = new FunctionName(name);
+ Function searchDesc = new Function(fnName, Arrays.asList(argTypes),
Type.INVALID, false,
+ VectorizedUtil.isVectorized());
+ // TODO: process RAND function.
+ return Env.getCurrentEnv().getFunction(searchDesc, mode);
+ }
+
Review Comment:
done
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