| /** |
| * Copyright 2011-2015 Quickstep Technologies LLC. |
| * Copyright 2015-2016 Pivotal Software, Inc. |
| * Copyright 2016, Quickstep Research Group, Computer Sciences Department, |
| * University of Wisconsin—Madison. |
| * |
| * 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/expressions/BinaryExpression.hpp" |
| |
| #include <string> |
| #include <unordered_map> |
| #include <vector> |
| |
| #include "expressions/scalar/ScalarBinaryExpression.hpp" |
| #include "query_optimizer/OptimizerTree.hpp" |
| #include "query_optimizer/expressions/AttributeReference.hpp" |
| #include "query_optimizer/expressions/ExprId.hpp" |
| #include "query_optimizer/expressions/Expression.hpp" |
| #include "query_optimizer/expressions/PatternMatcher.hpp" |
| #include "types/operations/binary_operations/BinaryOperation.hpp" |
| #include "types/operations/binary_operations/BinaryOperationID.hpp" |
| |
| #include "glog/logging.h" |
| |
| namespace quickstep { |
| |
| class Type; |
| |
| namespace optimizer { |
| namespace expressions { |
| |
| BinaryExpression::BinaryExpression(const BinaryOperation &operation, |
| const ScalarPtr &left, |
| const ScalarPtr &right) |
| : operation_(operation), left_(left), right_(right) { |
| DCHECK(operation_.canApplyToTypes(left_->getValueType(), |
| right_->getValueType())) |
| << toString(); |
| addChild(left_); |
| addChild(right_); |
| } |
| |
| std::string BinaryExpression::getName() const { |
| switch (operation_.getBinaryOperationID()) { |
| case BinaryOperationID::kAdd: |
| return "Add"; |
| case BinaryOperationID::kSubtract: |
| return "Subtract"; |
| case BinaryOperationID::kMultiply: |
| return "Multiply"; |
| case BinaryOperationID::kDivide: |
| return "Divide"; |
| case BinaryOperationID::kModulo: |
| return "Modulo"; |
| default: |
| LOG(FATAL) << "Unknown binary operation"; |
| } |
| } |
| |
| const Type &BinaryExpression::getValueType() const { |
| return *operation_.resultTypeForArgumentTypes(left_->getValueType(), |
| right_->getValueType()); |
| } |
| |
| ExpressionPtr BinaryExpression::copyWithNewChildren( |
| const std::vector<ExpressionPtr> &new_children) const { |
| DCHECK_EQ(new_children.size(), children().size()); |
| DCHECK(SomeScalar::Matches(new_children[0])); |
| DCHECK(SomeScalar::Matches(new_children[1])); |
| return BinaryExpression::Create( |
| operation_, |
| std::static_pointer_cast<const Scalar>(new_children[0]), |
| std::static_pointer_cast<const Scalar>(new_children[1])); |
| } |
| |
| std::vector<AttributeReferencePtr> BinaryExpression::getReferencedAttributes() const { |
| std::vector<AttributeReferencePtr> referenced_attributes = |
| left_->getReferencedAttributes(); |
| const std::vector<AttributeReferencePtr> referenced_attributes_by_right_operand = |
| right_->getReferencedAttributes(); |
| referenced_attributes.insert(referenced_attributes.end(), |
| referenced_attributes_by_right_operand.begin(), |
| referenced_attributes_by_right_operand.end()); |
| return referenced_attributes; |
| } |
| |
| ::quickstep::Scalar *BinaryExpression::concretize( |
| const std::unordered_map<ExprId, const CatalogAttribute*> &substitution_map) const { |
| return new ::quickstep::ScalarBinaryExpression( |
| operation_, |
| left_->concretize(substitution_map), |
| right_->concretize(substitution_map)); |
| } |
| |
| void BinaryExpression::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 { |
| container_child_field_names->push_back(""); |
| container_child_fields->push_back({left_, right_}); |
| } |
| |
| } // namespace expressions |
| } // namespace optimizer |
| } // namespace quickstep |