| /** |
| * 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. |
| **/ |
| |
| #ifndef QUICKSTEP_EXPRESSIONS_AGGREGATION_AGGREGATION_HANDLE_DISTINCT_HPP_ |
| #define QUICKSTEP_EXPRESSIONS_AGGREGATION_AGGREGATION_HANDLE_DISTINCT_HPP_ |
| |
| #include <cstddef> |
| #include <memory> |
| #include <vector> |
| |
| #include "catalog/CatalogTypedefs.hpp" |
| #include "expressions/aggregation/AggregationConcreteHandle.hpp" |
| #include "storage/HashTableBase.hpp" |
| #include "types/TypedValue.hpp" |
| #include "utility/Macros.hpp" |
| |
| #include "glog/logging.h" |
| |
| namespace quickstep { |
| |
| class AggregationState; |
| class ColumnVector; |
| class StorageManager; |
| class Type; |
| class ValueAccessor; |
| |
| /** \addtogroup Expressions |
| * @{ |
| */ |
| |
| class AggregationHandleDistinct : public AggregationConcreteHandle { |
| public: |
| /** |
| * @brief Constructor. |
| **/ |
| AggregationHandleDistinct() { |
| } |
| |
| AggregationState* createInitialState() const override { |
| LOG(FATAL) << "AggregationHandleDistinct does not support createInitialState()."; |
| } |
| |
| AggregationState* accumulateNullary(const std::size_t num_tuples) const override { |
| LOG(FATAL) << "AggregationHandleDistinct does not support accumulateNullary()."; |
| } |
| |
| AggregationState* accumulateColumnVectors( |
| const std::vector<std::unique_ptr<ColumnVector>> &column_vectors) const override { |
| LOG(FATAL) << "AggregationHandleDistinct does not support accumulateColumnVectors()."; |
| } |
| |
| #ifdef QUICKSTEP_ENABLE_VECTOR_COPY_ELISION_SELECTION |
| AggregationState* accumulateValueAccessor( |
| ValueAccessor *accessor, |
| const std::vector<attribute_id> &accessor_ids) const override { |
| LOG(FATAL) << "AggregationHandleDistinct does not support accumulateValueAccessor()."; |
| } |
| #endif |
| |
| void mergeStates(const AggregationState &source, |
| AggregationState *destination) const override { |
| LOG(FATAL) << "AggregationHandleDistinct does not support mergeStates()."; |
| } |
| |
| TypedValue finalize(const AggregationState &state) const override { |
| LOG(FATAL) << "AggregationHandleDistinct does not support finalize()."; |
| } |
| |
| AggregationState* aggregateOnDistinctifyHashTableForSingle( |
| const AggregationStateHashTableBase &distinctify_hash_table) const override { |
| LOG(FATAL) << "AggregationHandleDistinct does not support " |
| << "aggregateOnDistinctifyHashTableForSingle()."; |
| } |
| |
| void aggregateOnDistinctifyHashTableForGroupBy( |
| const AggregationStateHashTableBase &distinctify_hash_table, |
| AggregationStateHashTableBase *groupby_hash_table) const override { |
| LOG(FATAL) << "AggregationHandleDistinct does not support " |
| << "aggregateOnDistinctifyHashTableForGroupBy()."; |
| } |
| |
| AggregationStateHashTableBase* createGroupByHashTable( |
| const HashTableImplType hash_table_impl, |
| const std::vector<const Type*> &group_by_types, |
| const std::size_t estimated_num_groups, |
| StorageManager *storage_manager) const override; |
| |
| void aggregateValueAccessorIntoHashTable( |
| ValueAccessor *accessor, |
| const std::vector<attribute_id> &argument_ids, |
| const std::vector<attribute_id> &group_by_key_ids, |
| AggregationStateHashTableBase *hash_table) const override; |
| |
| ColumnVector* finalizeHashTable( |
| const AggregationStateHashTableBase &hash_table, |
| std::vector<std::vector<TypedValue>> *group_by_keys) const override; |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(AggregationHandleDistinct); |
| }; |
| |
| /** @} */ |
| |
| } // namespace quickstep |
| |
| #endif // QUICKSTEP_EXPRESSIONS_AGGREGATION_AGGREGATION_HANDLE_DISTINCT_HPP_ |