Gabriel39 commented on code in PR #69668: URL: https://github.com/apache/doris/pull/69668#discussion_r4385741582
########## be/src/format_v2/arrow/arrow_stream_reader.cpp: ########## @@ -0,0 +1,347 @@ +// 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 "format_v2/arrow/arrow_stream_reader.h" + +#include <arrow/array.h> +#include <arrow/buffer.h> +#include <arrow/compute/api.h> +#include <arrow/io/interfaces.h> +#include <arrow/ipc/reader.h> +#include <arrow/record_batch.h> +#include <arrow/type.h> + +#include <utility> + +#include "core/block/block.h" +#include "format/arrow/arrow_array_normalizer.h" +#include "format/arrow/arrow_row_batch.h" +#include "format/arrow/arrow_utils.h" +#include "format/parquet/arrow_memory_pool.h" +#include "format_v2/column_mapper.h" +#include "format_v2/materialized_reader_util.h" +#include "io/fs/tracing_file_reader.h" +#include "runtime/descriptors.h" +#include "runtime/file_scan_profile.h" +#include "runtime/runtime_state.h" + +namespace doris::format::arrow_stream { + +namespace { + +std::shared_ptr<arrow::DataType> input_binding_type( + const std::shared_ptr<arrow::DataType>& wire, + const std::shared_ptr<arrow::DataType>& declared) { + if (wire->Equals(declared)) { + return declared; + } + // SerDe owns datetime rounding and naive/aware interpretation. Casting timestamp[us] + // to the declared timestamp[ms] first would reject .123789 instead of rounding to .124. + if (wire->id() == arrow::Type::TIMESTAMP && declared->id() == arrow::Type::TIMESTAMP) { + return wire; + } + if (declared->id() == arrow::Type::LIST && + (wire->id() == arrow::Type::LIST || wire->id() == arrow::Type::LARGE_LIST || + wire->id() == arrow::Type::FIXED_SIZE_LIST)) { + const auto& source = static_cast<const arrow::BaseListType&>(*wire); + const auto& target = static_cast<const arrow::ListType&>(*declared); + return arrow::list(target.value_field()->WithType( + input_binding_type(source.value_type(), target.value_type()))); + } + if (wire->id() == arrow::Type::MAP && declared->id() == arrow::Type::MAP) { + const auto& source = static_cast<const arrow::MapType&>(*wire); + const auto& target = static_cast<const arrow::MapType&>(*declared); + return std::make_shared<arrow::MapType>(target.key_field()->WithType(input_binding_type( + source.key_type(), target.key_type())), + target.item_field()->WithType(input_binding_type( + source.item_type(), target.item_type())), + target.keys_sorted()); + } + if (wire->id() == arrow::Type::STRUCT && declared->id() == arrow::Type::STRUCT && + wire->num_fields() == declared->num_fields()) { + arrow::FieldVector fields; + for (int i = 0; i < wire->num_fields(); ++i) { + fields.push_back(declared->field(i)->WithType( + input_binding_type(wire->field(i)->type(), declared->field(i)->type()))); + } + return arrow::struct_(fields); + } + return declared; +} + +} // namespace + +// Peek one byte between IPC streams without requesting a large buffer from a blocking load pipe. +// For example, a second schema can immediately follow the first stream's EOS marker. +class ArrowInputStream final : public arrow::io::InputStream { +public: + ArrowInputStream(io::FileReaderSPtr reader, std::shared_ptr<io::IOContext> io_ctx, + arrow::MemoryPool* pool) + : _reader(std::move(reader)), _io_ctx(std::move(io_ctx)), _pool(pool) {} + + arrow::Status Close() override { + _reader.reset(); + return arrow::Status::OK(); + } + bool closed() const override { return _reader == nullptr; } + arrow::Result<int64_t> Tell() const override { return _position; } + + Status has_next(bool* has_next) { + size_t bytes = 0; + RETURN_IF_ERROR(_reader->read_at(_position, Slice(&_next_byte, 1), &bytes, _io_ctx.get())); + _has_next_byte = bytes != 0; + *has_next = _has_next_byte; + return Status::OK(); + } + + arrow::Result<int64_t> Read(int64_t nbytes, void* out) override { + auto* output = static_cast<char*>(out); + int64_t total = 0; + if (nbytes > 0 && _has_next_byte) { + output[total++] = _next_byte; + ++_position; + _has_next_byte = false; + } + while (total < nbytes) { + size_t bytes = 0; + const auto status = _reader->read_at(_position, Slice(output + total, nbytes - total), + &bytes, _io_ctx.get()); + if (!status.ok()) { + return arrow::Status::IOError(status.to_string()); + } + if (bytes == 0) { + break; + } + total += bytes; + _position += bytes; + } + return total; + } + arrow::Result<std::shared_ptr<arrow::Buffer>> Read(int64_t nbytes) override { + ARROW_ASSIGN_OR_RAISE(auto buffer, arrow::AllocateResizableBuffer(nbytes, _pool)); + ARROW_ASSIGN_OR_RAISE(auto bytes, Read(nbytes, buffer->mutable_data())); + ARROW_RETURN_NOT_OK(buffer->Resize(bytes, false)); + buffer->ZeroPadding(); + return buffer; + } + +private: + io::FileReaderSPtr _reader; + std::shared_ptr<io::IOContext> _io_ctx; + arrow::MemoryPool* _pool; + int64_t _position = 0; + char _next_byte = 0; + bool _has_next_byte = false; +}; + +ArrowStreamReader::ArrowStreamReader(std::shared_ptr<io::FileSystemProperties>& properties, + std::unique_ptr<io::FileDescription>& file, + std::shared_ptr<io::IOContext> io_ctx, RuntimeProfile* profile, + std::vector<SlotDescriptor*> file_slots, + std::optional<TUniqueId> load_id) + : FileReader(properties, file, std::move(io_ctx), profile), + _file_slots(std::move(file_slots)), + _load_id(std::move(load_id)), + _arrow_pool(std::make_unique<ArrowMemoryPool<>>()) {} + +ArrowStreamReader::~ArrowStreamReader() { + static_cast<void>(close()); +} + +void ArrowStreamReader::_init_profile() { + if (_profile == nullptr) { + return; + } + file_scan_profile::ensure_hierarchy(_profile); + _total_time = ADD_CHILD_TIMER_WITH_LEVEL(_profile, "ArrowStreamReader", + file_scan_profile::FILE_READER, 1); + _read_time = + ADD_CHILD_TIMER_WITH_LEVEL(_profile, "ArrowStreamReadTime", "ArrowStreamReader", 1); + _materialize_time = ADD_CHILD_TIMER_WITH_LEVEL(_profile, "ArrowStreamMaterializeTime", + "ArrowStreamReader", 1); +} + +Status ArrowStreamReader::init(RuntimeState* state) { + _state = state; + _init_profile(); + SCOPED_TIMER(_total_time); + if (_system_properties->system_type != TFileType::FILE_STREAM || !_load_id) { + return Status::InvalidArgument("Arrow IPC load requires a stream load id"); + } + for (const auto* slot : _file_slots) { + std::shared_ptr<arrow::DataType> type; + RETURN_IF_ERROR(DorisArrowSchemaConvertor(state->timezone()) + .convert_to_arrow_type(slot->type(), &type)); + _arrow_types.push_back(std::move(type)); + } + _eof = false; + return Status::OK(); +} + +Status ArrowStreamReader::get_schema(std::vector<ColumnDefinition>* schema) const { + schema->clear(); + for (size_t i = 0; i < _file_slots.size(); ++i) { + const auto* slot = _file_slots[i]; + schema->push_back({.identifier = Field::create_field<TYPE_STRING>(slot->col_name()), + .local_id = cast_set<int32_t>(i), + .name = slot->col_name(), + .type = slot->type(), + .children = materialized_schema_children(slot->type())}); + } + return Status::OK(); +} + +std::unique_ptr<TableColumnMapper> ArrowStreamReader::create_column_mapper( + TableColumnMapperOptions options) const { + return std::make_unique<MaterializedColumnMapper>(options); +} + +Status ArrowStreamReader::open(std::shared_ptr<FileScanRequest> request) { + RETURN_IF_ERROR(FileReader::open(std::move(request))); + RETURN_IF_ERROR(FileFactory::create_pipe_reader(*_load_id, &_file_reader, _state, false)); + _tracing_file_reader = _io_ctx && _io_ctx->file_reader_stats + ? std::make_shared<io::TracingFileReader>( + _file_reader, _io_ctx->file_reader_stats) + : _file_reader; + _input = std::make_shared<ArrowInputStream>(_tracing_file_reader, _io_ctx, _arrow_pool.get()); + return Status::OK(); +} + +Status ArrowStreamReader::_open_next_stream() { + bool has_next = false; + RETURN_IF_ERROR(_input->has_next(&has_next)); + if (!has_next) { + _eof = true; + return Status::OK(); + } + auto options = arrow::ipc::IpcReadOptions::Defaults(); + options.memory_pool = _arrow_pool.get(); + // Keep IPC decompression on the scanner thread, where the load memory tracker is attached. + options.use_threads = false; + RETURN_DORIS_STATUS_IF_RESULT_ERROR(_ipc_reader, + arrow::ipc::RecordBatchStreamReader::Open(_input, options)); + _arrow_positions.assign(_file_slots.size(), -1); + for (const auto& [id, position] : _request->local_positions) { + const auto& name = _file_slots.at(id.value())->col_name(); + const auto indices = _ipc_reader->schema()->GetAllFieldIndices(name); + if (indices.size() != 1) { + return Status::InvalidArgument("Arrow stream requires exactly one column named '{}'", + name); + } + _arrow_positions[id.value()] = indices[0]; + } + return Status::OK(); +} + +Status ArrowStreamReader::_prepare_arrays() { + _arrays.assign(_file_slots.size(), nullptr); + for (const auto& [id, position] : _request->local_positions) { + std::shared_ptr<arrow::Array> array; + RETURN_IF_ERROR(normalize_arrow_array(_batch->column(_arrow_positions[id.value()]), + _arrow_pool.get(), &array)); + const auto binding = input_binding_type(array->type(), _arrow_types[id.value()]); + // Bind differing numeric widths before concrete SerDe array casts. Timestamp units + // stay on the wire even inside containers, so Doris retains its own rounding semantics. + if (!array->type()->Equals(binding)) { + arrow::compute::ExecContext context(_arrow_pool.get()); + auto options = arrow::compute::CastOptions::Safe(); Review Comment: Fixed in 4df2737ba0. Binding now consults the Doris type and preserves UInt32 storage for IPv4. UInt32Ipv4PreservesTheUnsignedAddressBits covers 0x7fffffff, 0x80000000, and 0xffffffff. NumericIntStillRejectsAnOverflowingUInt32 separately verifies that actual INT columns retain checked overflow behavior. The IPv4 reproduction failed before the fix and now passes. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. 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