| /** |
| * 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 "expressions/predicate/Predicate.hpp" |
| |
| #include <string> |
| #include <vector> |
| |
| #include "storage/TupleIdSequence.hpp" |
| #include "storage/ValueAccessor.hpp" |
| #include "utility/Macros.hpp" |
| |
| namespace quickstep { |
| |
| const char *Predicate::kPredicateTypeNames[] = { |
| "True", |
| "False", |
| "Comparison", |
| "Negation", |
| "Conjunction", |
| "Disjunction" |
| }; |
| |
| bool Predicate::getStaticResult() const { |
| FATAL_ERROR("Called getStaticResult() on a predicate which has no static result"); |
| } |
| |
| TupleIdSequence* Predicate::GenerateSequenceForStaticResult( |
| ValueAccessor *accessor, |
| const TupleIdSequence *filter, |
| const TupleIdSequence *existence_map, |
| const bool static_result) { |
| TupleIdSequence *result = new TupleIdSequence(accessor->getEndPositionVirtual()); |
| if (static_result) { |
| if (filter != nullptr) { |
| // '*filter' will always be a subset of '*existence_map'. |
| result->assignFrom(*filter); |
| } else if (existence_map != nullptr) { |
| result->assignFrom(*existence_map); |
| } else { |
| result->setRange(0, result->length(), true); |
| } |
| } |
| return result; |
| } |
| |
| void Predicate::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<const Expression*> *non_container_child_fields, |
| std::vector<std::string> *container_child_field_names, |
| std::vector<std::vector<const Expression*>> *container_child_fields) const { |
| if (hasStaticResult()) { |
| inline_field_names->emplace_back("static_result"); |
| inline_field_values->emplace_back(getStaticResult() ? "true" : "false"); |
| } |
| } |
| |
| } // namespace quickstep |