| /** |
| * 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/logical/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/PatternMatcher.hpp" |
| #include "utility/Cast.hpp" |
| |
| #include "glog/logging.h" |
| |
| namespace quickstep { |
| namespace optimizer { |
| namespace logical { |
| |
| namespace E = ::quickstep::optimizer::expressions; |
| |
| LogicalPtr Aggregate::copyWithNewChildren( |
| const std::vector<LogicalPtr> &new_children) const { |
| DCHECK_EQ(getNumChildren(), new_children.size()); |
| return Create(new_children[0], grouping_expressions_, aggregate_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()); |
| } |
| return referenced_attributes; |
| } |
| |
| LogicalPtr Aggregate::copyWithNewInputExpressions( |
| const std::vector<E::ExpressionPtr> &input_expressions) const { |
| DCHECK_EQ(grouping_expressions_.size() + aggregate_expressions_.size(), |
| input_expressions.size()); |
| |
| std::vector<E::NamedExpressionPtr> new_grouping_expressions; |
| for (std::vector<E::ExpressionPtr>::size_type index = 0; |
| index < grouping_expressions_.size(); |
| ++index) { |
| E::NamedExpressionPtr grouping_expression; |
| E::SomeNamedExpression::MatchesWithConditionalCast(input_expressions[index], |
| &grouping_expression); |
| DCHECK(grouping_expression != nullptr); |
| new_grouping_expressions.emplace_back(grouping_expression); |
| } |
| |
| std::vector<E::AliasPtr> new_aggregate_expressions; |
| for (std::vector<E::ExpressionPtr>::size_type index = grouping_expressions_.size(); |
| index < input_expressions.size(); |
| ++index) { |
| E::AliasPtr aggregate_expression; |
| E::SomeAlias::MatchesWithConditionalCast(input_expressions[index], &aggregate_expression); |
| DCHECK(aggregate_expression != nullptr); |
| new_aggregate_expressions.emplace_back(aggregate_expression); |
| } |
| |
| return Create(input_, new_grouping_expressions, new_aggregate_expressions); |
| } |
| |
| 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_)); |
| } |
| |
| } // namespace logical |
| } // namespace optimizer |
| } // namespace quickstep |