Revert "[Coverage](BE) Delete vinfo_func in BE"

be/src/vec/exprs/vexpr.cpp

@@ -41,6 +41,7 @@
 #include "vec/exprs/vectorized_fn_call.h"
 #include "vec/exprs/vexpr_context.h"
 #include "vec/exprs/vin_predicate.h"
+#include "vec/exprs/vinfo_func.h"
 #include "vec/exprs/vlambda_function_call_expr.h"
 #include "vec/exprs/vlambda_function_expr.h"
 #include "vec/exprs/vliteral.h"
@@ -302,6 +303,10 @@ Status VExpr::create_expr(const TExprNode& expr_node, VExprSPtr& expr) {
  expr = VCaseExpr::create_shared(expr_node);
  break;
  }
+ case TExprNodeType::INFO_FUNC: {
+ expr = VInfoFunc::create_shared(expr_node);
+ break;
+ }
  case TExprNodeType::TUPLE_IS_NULL_PRED: {
  expr = VTupleIsNullPredicate::create_shared(expr_node);
  break;

be/src/vec/exprs/vinfo_func.cpp

@@ -0,0 +1,71 @@
+// 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.
+
+#include "vec/exprs/vinfo_func.h"
+
+#include <gen_cpp/Exprs_types.h>
+#include <glog/logging.h>
+#include <stddef.h>
+
+#include <algorithm>
+#include <iostream>
+#include <memory>
+
+#include "runtime/define_primitive_type.h"
+#include "runtime/types.h"
+#include "vec/core/block.h"
+#include "vec/core/field.h"
+#include "vec/core/types.h"
+#include "vec/data_types/data_type.h"
+
+namespace doris {
+namespace vectorized {
+class VExprContext;
+} // namespace vectorized
+} // namespace doris
+
+namespace doris::vectorized {
+
+VInfoFunc::VInfoFunc(const TExprNode& node) : VExpr(node) {
+ Field field;
+ switch (_type.type) {
+ case TYPE_BIGINT: {
+ field = Int64(node.info_func.int_value);
+ break;
+ }
+ case TYPE_STRING:
+ case TYPE_CHAR:
+ case TYPE_VARCHAR: {
+ field = node.info_func.str_value;
+ break;
+ }
+ default: {
+ DCHECK(false) << "Invalid type: " << _type.type;
+ break;
+ }
+ }
+ this->_column_ptr = _data_type->create_column_const(1, field);
+}
+
+Status VInfoFunc::execute(VExprContext* context, vectorized::Block* block, int* result_column_id) {
+ // Info function should return least one row, e.g. select current_user().
+ size_t row_size = std::max(block->rows(), size_t(1));
+ *result_column_id = VExpr::insert_param(block, {_column_ptr, _data_type, _expr_name}, row_size);
+ return Status::OK();
+}
+
+} // namespace doris::vectorized

be/src/vec/exprs/vinfo_func.h

@@ -0,0 +1,50 @@
+// 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 <string>
+
+#include "common/object_pool.h"
+#include "common/status.h"
+#include "vec/data_types/data_type.h"
+#include "vec/exprs/vexpr.h"
+
+namespace doris {
+class TExprNode;
+
+namespace vectorized {
+class Block;
+class VExprContext;
+
+class VInfoFunc : public VExpr {
+ ENABLE_FACTORY_CREATOR(VInfoFunc);
+
+public:
+ VInfoFunc(const TExprNode& node);
+ ~VInfoFunc() override = default;
+
+ const std::string& expr_name() const override { return _expr_name; }
+ Status execute(VExprContext* context, Block* block, int* result_column_id) override;
+
+private:
+ const std::string _expr_name = "vinfofunc expr";
+ ColumnPtr _column_ptr;
+};
+} // namespace vectorized
+
+} // namespace doris