| /** |
| * 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/expressions/Cast.hpp" |
| |
| #include <string> |
| #include <unordered_map> |
| #include <vector> |
| |
| #include "expressions/scalar/Scalar.hpp" |
| #include "expressions/scalar/ScalarUnaryExpression.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 "query_optimizer/expressions/Scalar.hpp" |
| #include "types/Type.hpp" |
| #include "types/operations/unary_operations/NumericCastOperation.hpp" |
| |
| #include "glog/logging.h" |
| |
| namespace quickstep { |
| namespace optimizer { |
| namespace expressions { |
| |
| ExpressionPtr Cast::copyWithNewChildren( |
| const std::vector<ExpressionPtr> &new_children) const { |
| DCHECK_EQ(getNumChildren(), new_children.size()); |
| ScalarPtr scalar; |
| CHECK(SomeScalar::MatchesWithConditionalCast(new_children[0], &scalar)) |
| << new_children[0]->toString(); |
| return Create(scalar, target_type_); |
| } |
| |
| ::quickstep::Scalar *Cast::concretize( |
| const std::unordered_map<ExprId, const CatalogAttribute*> &substitution_map) const { |
| return new ::quickstep::ScalarUnaryExpression(::quickstep::NumericCastOperation::Instance(target_type_), |
| operand_->concretize(substitution_map)); |
| } |
| |
| void Cast::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 { |
| inline_field_names->push_back("target_type"); |
| inline_field_values->push_back(target_type_.getName()); |
| |
| non_container_child_field_names->push_back("operand"); |
| non_container_child_fields->push_back(operand_); |
| } |
| |
| } // namespace expressions |
| } // namespace optimizer |
| } // namespace quickstep |