| /** |
| * 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. |
| **/ |
| |
| #ifndef QUICKSTEP_PARSER_PARSE_SUBQUERY_TABLE_REFERENCE_HPP_ |
| #define QUICKSTEP_PARSER_PARSE_SUBQUERY_TABLE_REFERENCE_HPP_ |
| |
| #include <memory> |
| #include <string> |
| #include <vector> |
| |
| #include "parser/ParseSubqueryExpression.hpp" |
| #include "parser/ParseTableReference.hpp" |
| #include "utility/Macros.hpp" |
| |
| namespace quickstep { |
| |
| class ParseTreeNode; |
| |
| /** \addtogroup Parser |
| * @{ |
| */ |
| |
| /** |
| * @brief A subquery table (table derived by a subquery expression) in the FROM clause. |
| */ |
| class ParseSubqueryTableReference : public ParseTableReference { |
| public: |
| /** |
| * @brief Constructor. Takes ownership of \p subquery_expr. |
| * |
| * @param line_number The line number of the first token of the table subquery. |
| * @param column_number The column number of the first token of the table subquery. |
| * @param subquery_expr The subquery expression. |
| */ |
| ParseSubqueryTableReference(const int line_number, |
| const int column_number, |
| ParseSubqueryExpression *subquery_expr) |
| : ParseTableReference(line_number, column_number), |
| subquery_expr_(subquery_expr) { |
| } |
| |
| /** |
| * @brief Destructor. |
| */ |
| ~ParseSubqueryTableReference() override {} |
| |
| TableReferenceType getTableReferenceType() const override { |
| return kSubqueryTableReference; |
| } |
| |
| std::string getName() const override { return "SubqueryTable"; } |
| |
| /** |
| * @return The subquery expression. |
| */ |
| const ParseSubqueryExpression* subquery_expr() const { return subquery_expr_.get(); } |
| |
| protected: |
| void getFieldStringItems( |
| std::vector<std::string> *inline_field_names, |
| std::vector<std::string> *inline_field_values, |
| std::vector<std::string> *non_container_child_field_names, |
| std::vector<const ParseTreeNode*> *non_container_child_fields, |
| std::vector<std::string> *container_child_field_names, |
| std::vector<std::vector<const ParseTreeNode*>> *container_child_fields) const override; |
| |
| private: |
| std::unique_ptr<ParseSubqueryExpression> subquery_expr_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ParseSubqueryTableReference); |
| }; |
| |
| /** @} */ |
| |
| } // namespace quickstep |
| |
| |
| |
| #endif /* QUICKSTEP_PARSER_PARSE_SUBQUERY_TABLE_REFERENCE_HPP_ */ |