| /** |
| * 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 "query_optimizer/rules/UpdateExpression.hpp" |
| |
| #include <unordered_map> |
| |
| #include "query_optimizer/expressions/Expression.hpp" |
| #include "query_optimizer/expressions/ExprId.hpp" |
| #include "query_optimizer/expressions/NamedExpression.hpp" |
| #include "query_optimizer/expressions/PatternMatcher.hpp" |
| #include "query_optimizer/rules/Rule.hpp" |
| |
| #include "glog/logging.h" |
| |
| namespace quickstep { |
| namespace optimizer { |
| |
| namespace E = ::quickstep::optimizer::expressions; |
| |
| E::ExpressionPtr UpdateExpression::applyToNode(const E::ExpressionPtr &input) { |
| E::NamedExpressionPtr named_expression; |
| |
| if (E::SomeNamedExpression::MatchesWithConditionalCast(input, &named_expression)) { |
| const std::unordered_map<E::ExprId, E::ExpressionPtr>::const_iterator it = |
| substitution_map_.find(named_expression->id()); |
| if (it != substitution_map_.end()) { |
| LOG_APPLYING_RULE(input, (it->second)); |
| return it->second; |
| } |
| } |
| |
| LOG_IGNORING_RULE(input); |
| return input; |
| } |
| |
| } // namespace optimizer |
| } // namespace quickstep |