| /** |
| * Copyright 2011-2015 Quickstep Technologies LLC. |
| * Copyright 2015 Pivotal Software, Inc. |
| * |
| * Licensed 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/physical/Aggregate.hpp" |
| |
| #include <string> |
| #include <vector> |
| |
| #include "query_optimizer/OptimizerTree.hpp" |
| #include "query_optimizer/expressions/AttributeReference.hpp" |
| #include "query_optimizer/expressions/ExpressionUtil.hpp" |
| #include "query_optimizer/expressions/NamedExpression.hpp" |
| #include "query_optimizer/expressions/Predicate.hpp" |
| #include "utility/Cast.hpp" |
| |
| namespace quickstep { |
| namespace optimizer { |
| namespace physical { |
| |
| namespace E = ::quickstep::optimizer::expressions; |
| |
| std::vector<E::AttributeReferencePtr> Aggregate::getOutputAttributes() const { |
| std::vector<E::AttributeReferencePtr> output_attributes( |
| E::ToRefVector(grouping_expressions_)); |
| const std::vector<E::AttributeReferencePtr> aggregate_output_attributes = |
| E::ToRefVector(aggregate_expressions_); |
| output_attributes.insert(output_attributes.end(), |
| aggregate_output_attributes.begin(), |
| aggregate_output_attributes.end()); |
| return output_attributes; |
| } |
| |
| std::vector<E::AttributeReferencePtr> Aggregate::getReferencedAttributes() |
| const { |
| std::vector<E::AttributeReferencePtr> referenced_attributes; |
| for (const E::NamedExpressionPtr &grouping_expression : |
| grouping_expressions_) { |
| const std::vector<E::AttributeReferencePtr> referenced_attributes_in_expression = |
| grouping_expression->getReferencedAttributes(); |
| referenced_attributes.insert(referenced_attributes.end(), |
| referenced_attributes_in_expression.begin(), |
| referenced_attributes_in_expression.end()); |
| } |
| for (const E::AliasPtr &aggregate_expression : |
| aggregate_expressions_) { |
| const std::vector<E::AttributeReferencePtr> referenced_attributes_in_expression = |
| aggregate_expression->getReferencedAttributes(); |
| referenced_attributes.insert(referenced_attributes.end(), |
| referenced_attributes_in_expression.begin(), |
| referenced_attributes_in_expression.end()); |
| } |
| if (filter_predicate_ != nullptr) { |
| const std::vector<E::AttributeReferencePtr> referenced_attributes_in_predicate = |
| filter_predicate_->getReferencedAttributes(); |
| referenced_attributes.insert(referenced_attributes.end(), |
| referenced_attributes_in_predicate.begin(), |
| referenced_attributes_in_predicate.end()); |
| } |
| return referenced_attributes; |
| } |
| |
| void Aggregate::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<OptimizerTreeBaseNodePtr> *non_container_child_fields, |
| std::vector<std::string> *container_child_field_names, |
| std::vector<std::vector<OptimizerTreeBaseNodePtr>> *container_child_fields) const { |
| non_container_child_field_names->push_back("input"); |
| non_container_child_fields->push_back(input_); |
| |
| container_child_field_names->push_back("grouping_expressions"); |
| container_child_fields->push_back( |
| CastSharedPtrVector<OptimizerTreeBase>(grouping_expressions_)); |
| container_child_field_names->push_back("aggregate_expressions"); |
| container_child_fields->push_back( |
| CastSharedPtrVector<OptimizerTreeBase>(aggregate_expressions_)); |
| |
| if (filter_predicate_ != nullptr) { |
| non_container_child_field_names->push_back("filter_predicate"); |
| non_container_child_fields->push_back(filter_predicate_); |
| } |
| } |
| |
| } // namespace physical |
| } // namespace optimizer |
| } // namespace quickstep |