lszskye commented on code in PR #490: URL: https://github.com/apache/paimon-cpp/pull/490#discussion_r4476427295
########## src/paimon/core/operation/precise_file_index_read.cpp: ########## @@ -0,0 +1,573 @@ +/* + * 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 "paimon/core/operation/precise_file_index_read.h" + +#include <algorithm> +#include <cmath> +#include <map> +#include <memory> +#include <optional> +#include <string> +#include <utility> +#include <vector> + +#include "arrow/c/abi.h" +#include "arrow/type.h" +#include "fmt/format.h" +#include "paimon/common/reader/complete_index_score_file_batch_reader.h" +#include "paimon/common/reader/predicate_batch_reader.h" +#include "paimon/common/reader/reader_utils.h" +#include "paimon/common/types/data_field.h" +#include "paimon/common/utils/object_utils.h" +#include "paimon/common/utils/scope_guard.h" +#include "paimon/core/deletionvectors/bitmap64_deletion_vector.h" +#include "paimon/core/deletionvectors/bitmap_deletion_vector.h" +#include "paimon/core/io/data_file_meta.h" +#include "paimon/core/io/data_file_path_factory.h" +#include "paimon/core/io/file_index_evaluator.h" +#include "paimon/core/io/file_index_options.h" +#include "paimon/core/operation/internal_read_context.h" +#include "paimon/core/operation/raw_file_split_read.h" +#include "paimon/core/schema/schema_manager.h" +#include "paimon/core/schema/table_schema.h" +#include "paimon/core/utils/field_mapping.h" +#include "paimon/file_index/bitmap_index_result.h" +#include "paimon/file_index/file_index_result.h" +#include "paimon/file_index/scored_file_index_result.h" +#include "paimon/format/reader_builder.h" +#include "paimon/predicate/compound_predicate.h" +#include "paimon/predicate/full_text_search.h" +#include "paimon/predicate/function.h" +#include "paimon/predicate/leaf_predicate.h" +#include "paimon/predicate/vector_search.h" +#include "paimon/utils/roaring_bitmap64.h" + +namespace paimon { +namespace { + +Result<std::string> ResolveSearchFieldName( + const std::string& field_name, const std::map<std::string, std::string>& field_name_mapping, + const std::string& file_name) { + auto iter = field_name_mapping.find(field_name); + if (iter == field_name_mapping.end()) { + return Status::Invalid( + fmt::format("Search field '{}' has no matching field ID in data schema for file '{}'", + field_name, file_name)); + } + return iter->second; +} + +Status PreparePredicate( + const std::shared_ptr<Predicate>& predicate, + const std::map<std::string, DataField>& read_by_name, + const std::map<int32_t, std::pair<int32_t, DataField>>& data_by_id, + const std::vector<std::string>& partition_keys, FileIndexEvaluator* indexes, + std::map<std::shared_ptr<LeafPredicate>, std::shared_ptr<LeafPredicate>>* mapped_leaves) { + if (!predicate) { + return Status::OK(); + } + if (auto compound = std::dynamic_pointer_cast<CompoundPredicate>(predicate)) { + const Function::Type type = compound->GetFunction().GetType(); + if (type != Function::Type::AND && type != Function::Type::OR) { + return Status::Invalid( + fmt::format("unsupported compound file predicate {}", predicate->ToString())); + } + for (const auto& child : compound->Children()) { + PAIMON_RETURN_NOT_OK(PreparePredicate(child, read_by_name, data_by_id, partition_keys, + indexes, mapped_leaves)); + } + return Status::OK(); + } + auto leaf = std::dynamic_pointer_cast<LeafPredicate>(predicate); + if (!leaf) { + return Status::Invalid("File predicate must contain leaf or compound predicates"); + } + bool full_text = leaf->GetFunction().GetType() == Function::Type::FULL_TEXT_MATCH; + if (!full_text && ObjectUtils::Contains(partition_keys, leaf->FieldName())) { + mapped_leaves->emplace(leaf, nullptr); + return Status::OK(); + } + PAIMON_ASSIGN_OR_RAISE( + std::optional<std::shared_ptr<Predicate>> mapped, + FieldMappingBuilder::ReconstructPredicateWithDataFields(leaf, read_by_name, data_by_id)); + std::shared_ptr<LeafPredicate> mapped_leaf; + if (mapped) { + mapped_leaf = std::dynamic_pointer_cast<LeafPredicate>(*mapped); + if (!mapped_leaf) { + return Status::Invalid("Mapped file predicate must be a leaf"); + } + if (full_text) { + PAIMON_ASSIGN_OR_RAISE( + [[maybe_unused]] std::shared_ptr<FileIndexReader> reader, + indexes->GetSearchReader(mapped_leaf->FieldName(), + FileIndexReader::SearchType::FULL_TEXT_MATCH)); + } + } + mapped_leaves->emplace(leaf, std::move(mapped_leaf)); + return Status::OK(); +} + +Status PrepareSearch(const std::shared_ptr<InternalReadContext>& context, + const std::map<std::string, std::string>& field_names, + const std::string& file_name, FileIndexEvaluator* indexes, + std::shared_ptr<VectorSearch>* vector_search, + std::shared_ptr<FullTextSearch>* full_text_search) { + if (context->GetVectorSearch()) { + *vector_search = std::make_shared<VectorSearch>(*context->GetVectorSearch()); + PAIMON_ASSIGN_OR_RAISE( + (*vector_search)->field_name, + ResolveSearchFieldName((*vector_search)->field_name, field_names, file_name)); + PAIMON_ASSIGN_OR_RAISE( + [[maybe_unused]] std::shared_ptr<FileIndexReader> reader, + indexes->GetSearchReader((*vector_search)->field_name, + FileIndexReader::SearchType::VECTOR_SEARCH)); + } + if (context->GetFullTextSearch()) { + *full_text_search = std::make_shared<FullTextSearch>(*context->GetFullTextSearch()); + PAIMON_ASSIGN_OR_RAISE( + (*full_text_search)->field_name, + ResolveSearchFieldName((*full_text_search)->field_name, field_names, file_name)); + PAIMON_ASSIGN_OR_RAISE( + [[maybe_unused]] std::shared_ptr<FileIndexReader> reader, + indexes->GetSearchReader((*full_text_search)->field_name, + FileIndexReader::SearchType::FULL_TEXT_SEARCH)); + } + return Status::OK(); +} + +} // namespace + +Result<std::unique_ptr<PreciseFileIndexRead>> PreciseFileIndexRead::Create( + const RawFileSplitRead& split_read, const BinaryRow& partition, + const std::shared_ptr<DataFileMeta>& file, const FieldMappingBuilder* field_mapping_builder, + const std::shared_ptr<DataFilePathFactory>& path_factory, + const std::map<std::string, std::string>& extra_format_options) { + std::shared_ptr<TableSchema> table_schema = split_read.context_->GetTableSchema(); Review Comment: ok -- This is an automated message from the Apache Git Service. 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