[vectorized](function) support array_map function (#17581)

be/src/vec/exprs/vlambda_function_expr.h

@@ -0,0 +1,43 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+#pragma once
+#include "common/global_types.h"
+#include "vec/exprs/vexpr.h"
+#include "vec/functions/function.h"
+
+namespace doris::vectorized {
+class VLambdaFunctionExpr final : public VExpr {
+public:
+    VLambdaFunctionExpr(const TExprNode& node) : VExpr(node) {}
+    ~VLambdaFunctionExpr() override = default;
+
+    doris::Status execute(VExprContext* context, doris::vectorized::Block* block,
+                          int* result_column_id) override {
+        return get_child(0)->execute(context, block, result_column_id);
+    }
+
+    VExpr* clone(doris::ObjectPool* pool) const override {
+        return pool->add(new VLambdaFunctionExpr(*this));
+    }
+
+    const std::string& expr_name() const override { return _expr_name; }
+
+private:
+    const std::string _expr_name = "vlambda_function_expr";
+};
+} // namespace doris::vectorized