| /** |
| * 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/scalar/ScalarAttribute.hpp" |
| |
| #include <string> |
| #include <utility> |
| #include <vector> |
| |
| #include "catalog/CatalogAttribute.hpp" |
| #include "catalog/CatalogRelationSchema.hpp" |
| #include "catalog/CatalogTypedefs.hpp" |
| #include "expressions/Expressions.pb.h" |
| #include "storage/StorageBlockInfo.hpp" |
| #include "storage/ValueAccessor.hpp" |
| #include "storage/ValueAccessorUtil.hpp" |
| #include "types/Type.hpp" |
| #include "types/TypedValue.hpp" |
| #include "types/containers/ColumnVector.hpp" |
| #include "utility/Macros.hpp" |
| |
| #include "glog/logging.h" |
| |
| namespace quickstep { |
| |
| ScalarAttribute::ScalarAttribute(const CatalogAttribute &attribute) |
| : Scalar(attribute.getType()), |
| attribute_(attribute) { |
| } |
| |
| serialization::Scalar ScalarAttribute::getProto() const { |
| serialization::Scalar proto; |
| proto.set_data_source(serialization::Scalar::ATTRIBUTE); |
| proto.SetExtension(serialization::ScalarAttribute::relation_id, attribute_.getParent().getID()); |
| proto.SetExtension(serialization::ScalarAttribute::attribute_id, attribute_.getID()); |
| |
| return proto; |
| } |
| |
| Scalar* ScalarAttribute::clone() const { |
| return new ScalarAttribute(attribute_); |
| } |
| |
| TypedValue ScalarAttribute::getValueForSingleTuple(const ValueAccessor &accessor, |
| const tuple_id tuple) const { |
| return accessor.getTypedValueAtAbsolutePositionVirtual(attribute_.getID(), tuple); |
| } |
| |
| TypedValue ScalarAttribute::getValueForJoinedTuples( |
| const ValueAccessor &left_accessor, |
| const relation_id left_relation_id, |
| const tuple_id left_tuple_id, |
| const ValueAccessor &right_accessor, |
| const relation_id right_relation_id, |
| const tuple_id right_tuple_id) const { |
| // FIXME(chasseur): This can get confused and break for self-joins. |
| DCHECK((attribute_.getParent().getID() == left_relation_id) |
| || (attribute_.getParent().getID() == right_relation_id)); |
| if (attribute_.getParent().getID() == left_relation_id) { |
| return left_accessor.getTypedValueAtAbsolutePositionVirtual(attribute_.getID(), |
| left_tuple_id); |
| } else { |
| return right_accessor.getTypedValueAtAbsolutePositionVirtual(attribute_.getID(), |
| right_tuple_id); |
| } |
| } |
| |
| attribute_id ScalarAttribute::getAttributeIdForValueAccessor() const { |
| return attribute_.getID(); |
| } |
| |
| relation_id ScalarAttribute::getRelationIdForValueAccessor() const { |
| return attribute_.getParent().getID(); |
| } |
| |
| ColumnVectorPtr ScalarAttribute::getAllValues( |
| ValueAccessor *accessor, |
| const SubBlocksReference *sub_blocks_ref, |
| ColumnVectorCache *cv_cache) const { |
| const attribute_id attr_id = attribute_.getID(); |
| const Type &result_type = attribute_.getType(); |
| return InvokeOnValueAccessorMaybeTupleIdSequenceAdapter( |
| accessor, |
| [&attr_id, &result_type](auto *accessor) -> ColumnVectorPtr { // NOLINT(build/c++11) |
| if (NativeColumnVector::UsableForType(result_type)) { |
| NativeColumnVector *result = new NativeColumnVector(result_type, |
| accessor->getNumTuples()); |
| accessor->beginIteration(); |
| if (result_type.isNullable()) { |
| if (accessor->isColumnAccessorSupported()) { |
| // If ColumnAccessor is supported on the underlying accessor, we have a fast strided |
| // column accessor available for the iteration on the underlying block. |
| // Since the attributes can be null, ColumnAccessor template takes a 'true' argument. |
| std::unique_ptr<const ColumnAccessor<true>> |
| column_accessor(accessor->template getColumnAccessor<true>(attr_id)); |
| while (accessor->next()) { |
| const void *value = column_accessor->getUntypedValue(); // Fast strided access. |
| if (value == nullptr) { |
| result->appendNullValue(); |
| } else { |
| result->appendUntypedValue(value); |
| } |
| } |
| } else { |
| while (accessor->next()) { |
| const void *value = accessor->template getUntypedValue<true>(attr_id); |
| if (value == nullptr) { |
| result->appendNullValue(); |
| } else { |
| result->appendUntypedValue(value); |
| } |
| } |
| } |
| } else { |
| if (accessor->isColumnAccessorSupported()) { |
| // Since the attributes cannot be null, ColumnAccessor template takes a 'false' argument. |
| std::unique_ptr<const ColumnAccessor<false>> |
| column_accessor(accessor->template getColumnAccessor<false>(attr_id)); |
| while (accessor->next()) { |
| result->appendUntypedValue(column_accessor->getUntypedValue()); // Fast strided access. |
| } |
| } else { |
| while (accessor->next()) { |
| result->appendUntypedValue( |
| accessor->template getUntypedValue<false>(attr_id)); |
| } |
| } |
| } |
| return ColumnVectorPtr(result); |
| } else { |
| IndirectColumnVector *result = new IndirectColumnVector(result_type, |
| accessor->getNumTuples()); |
| accessor->beginIteration(); |
| while (accessor->next()) { |
| result->appendTypedValue(accessor->getTypedValue(attr_id)); |
| } |
| return ColumnVectorPtr(result); |
| } |
| }); |
| } |
| |
| ColumnVectorPtr ScalarAttribute::getAllValuesForJoin( |
| const relation_id left_relation_id, |
| ValueAccessor *left_accessor, |
| const relation_id right_relation_id, |
| ValueAccessor *right_accessor, |
| const std::vector<std::pair<tuple_id, tuple_id>> &joined_tuple_ids, |
| ColumnVectorCache *cv_cache) const { |
| DCHECK((attribute_.getParent().getID() == left_relation_id) |
| || (attribute_.getParent().getID() == right_relation_id)); |
| |
| const attribute_id attr_id = attribute_.getID(); |
| const Type &result_type = attribute_.getType(); |
| |
| const bool using_left_relation = (attribute_.getParent().getID() == left_relation_id); |
| ValueAccessor *accessor = using_left_relation ? left_accessor |
| : right_accessor; |
| |
| return InvokeOnAnyValueAccessor( |
| accessor, |
| [&joined_tuple_ids, |
| &attr_id, |
| &result_type, |
| &using_left_relation](auto *accessor) -> ColumnVectorPtr { // NOLINT(build/c++11) |
| if (NativeColumnVector::UsableForType(result_type)) { |
| NativeColumnVector *result = new NativeColumnVector(result_type, |
| joined_tuple_ids.size()); |
| if (result_type.isNullable()) { |
| for (const std::pair<tuple_id, tuple_id> &joined_pair : joined_tuple_ids) { |
| const void *value = accessor->template getUntypedValueAtAbsolutePosition<true>( |
| attr_id, |
| using_left_relation ? joined_pair.first : joined_pair.second); |
| if (value == nullptr) { |
| result->appendNullValue(); |
| } else { |
| result->appendUntypedValue(value); |
| } |
| } |
| } else { |
| for (const std::pair<tuple_id, tuple_id> &joined_pair : joined_tuple_ids) { |
| result->appendUntypedValue( |
| accessor->template getUntypedValueAtAbsolutePosition<false>( |
| attr_id, |
| using_left_relation ? joined_pair.first : joined_pair.second)); |
| } |
| } |
| return ColumnVectorPtr(result); |
| } else { |
| IndirectColumnVector *result = new IndirectColumnVector(result_type, |
| joined_tuple_ids.size()); |
| for (const std::pair<tuple_id, tuple_id> &joined_pair : joined_tuple_ids) { |
| result->appendTypedValue( |
| accessor->getTypedValueAtAbsolutePosition( |
| attr_id, |
| using_left_relation ? joined_pair.first : joined_pair.second)); |
| } |
| return ColumnVectorPtr(result); |
| } |
| }); |
| } |
| |
| void ScalarAttribute::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 { |
| Scalar::getFieldStringItems(inline_field_names, |
| inline_field_values, |
| non_container_child_field_names, |
| non_container_child_fields, |
| container_child_field_names, |
| container_child_fields); |
| |
| inline_field_names->emplace_back("attribute"); |
| inline_field_values->emplace_back(std::to_string(attribute_.getID())); |
| } |
| |
| } // namespace quickstep |
