cambyzju commented on code in PR #9582:
URL: https://github.com/apache/incubator-doris/pull/9582#discussion_r873300713


##########
be/src/vec/exprs/vliteral.cpp:
##########
@@ -109,8 +109,33 @@ void VLiteral::init(const TExprNode& node) {
         case TYPE_DECIMALV2: {
             DCHECK_EQ(node.node_type, TExprNodeType::DECIMAL_LITERAL);
             DCHECK(node.__isset.decimal_literal);
-            DecimalV2Value value(node.decimal_literal.value);
-            field = DecimalField<Decimal128>(value.value(), value.scale());
+            if (config::enable_engine_decimalv3) {
+                DataTypePtr type_ptr = 
create_decimal(node.type.types[0].scalar_type.precision,
+                                                      
node.type.types[0].scalar_type.scale);
+                WhichDataType which(type_ptr->get_type_id());

Review Comment:
   WhichDataType(const DataTypePtr& data_type) support DataTypePtr as input 
argument.



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