pixels/cpp/include/PixelsScanFunction.hpp at ef6ae3f1ac122cc683aae3f0b947b5631b096adc · pixelsdb/pixels · GitHub

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/*
 * Copyright 2023 PixelsDB.
 *
 * This file is part of Pixels.
 *
 * Pixels is free software: you can redistribute it and/or modify
 * it under the terms of the Affero GNU General Public License as
 * published by the Free Software Foundation, either version 3 of
 * the License, or (at your option) any later version.
 *
 * Pixels is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * Affero GNU General Public License for more details.
 *
 * You should have received a copy of the Affero GNU General Public
 * License along with Pixels.  If not, see
 * <https://www.gnu.org/licenses/>.
 */

/*
 * @author liyu
 * @create 2023-03-26
 */
#pragma once

#ifndef EXAMPLE_C_PIXELSSCANFUNCTION_HPP
#define EXAMPLE_C_PIXELSSCANFUNCTION_HPP

#include "duckdb.hpp"
#include <fstream>
#include <iostream>
#include <numeric>
#include <string>
#include <vector>
#include <cstdio>
#include "duckdb/common/exception.hpp"
#include "duckdb/common/string_util.hpp"
#include "duckdb/function/scalar_function.hpp"
#include <duckdb/parser/parsed_data/create_scalar_function_info.hpp>
#include "PixelsReadGlobalState.hpp"
#include "PixelsReadLocalState.hpp"
#include "PixelsReadBindData.hpp"

#include "physical/storage/LocalFS.h"
#include "physical/natives/ByteBuffer.h"
#include "physical/natives/DirectRandomAccessFile.h"
#include "physical/io/PhysicalLocalReader.h"
#include "physical/StorageFactory.h"
#include "PixelsReaderImpl.h"
#include "PixelsReaderBuilder.h"
#include <iostream>
#include <future>
#include <thread>
#include "physical/scheduler/NoopScheduler.h"
#include "physical/SchedulerFactory.h"
#include "PixelsVersion.h"
#include "PixelsFooterCache.h"
#include "exception/PixelsReaderException.h"
#include "reader/PixelsReaderOption.h"
#include "TypeDescription.h"
#include "vector/ColumnVector.h"
#include "vector/LongColumnVector.h"
#include "physical/BufferPool.h"
#include "profiler/TimeProfiler.h"
#include "physical/natives/DirectUringRandomAccessFile.h"

#ifndef DUCKDB_AMALGAMATION

#include "duckdb/catalog/catalog.hpp"
#include "duckdb/common/constants.hpp"
#include "duckdb/common/enums/file_compression_type.hpp"
//#include "duckdb/common/field_writer.hpp"
#include "duckdb/common/file_system.hpp"
#include "duckdb/common/hive_partitioning.hpp"
//#include "duckdb/common/types/chunk_collection.hpp"
#include "duckdb/function/copy_function.hpp"
#include "duckdb/function/table_function.hpp"
#include "duckdb/main/client_context.hpp"
#include "duckdb/main/config.hpp"
#include "duckdb/parser/expression/constant_expression.hpp"
#include "duckdb/parser/expression/function_expression.hpp"
#include "duckdb/parser/parsed_data/create_copy_function_info.hpp"
#include "duckdb/parser/parsed_data/create_table_function_info.hpp"
#include "duckdb/parser/tableref/table_function_ref.hpp"
#include "duckdb/planner/operator/logical_get.hpp"
#include "duckdb/storage/statistics/base_statistics.hpp"
#include "duckdb/catalog/catalog_entry/table_function_catalog_entry.hpp"
#include "duckdb/common/multi_file/multi_file_reader.hpp"

#endif

using namespace std;

namespace duckdb
{

    class PixelsScanFunction
    {
    public:
        static TableFunctionSet GetFunctionSet();

        static void PixelsScanImplementation(ClientContext &context, TableFunctionInput &data_p,
                                             DataChunk &output);

        static unique_ptr <FunctionData> PixelsScanBind(ClientContext &context, TableFunctionBindInput &input,
                                                        vector <LogicalType> &return_types, vector <string> &names);

        static unique_ptr <GlobalTableFunctionState> PixelsScanInitGlobal(ClientContext &context,
                                                                          TableFunctionInitInput &input);

        static unique_ptr <LocalTableFunctionState>
        PixelsScanInitLocal(ExecutionContext &context, TableFunctionInitInput &input,
                            GlobalTableFunctionState *gstate_p);

        static bool PixelsParallelStateNext(ClientContext &context, PixelsReadBindData &bind_data,
                                            PixelsReadLocalState &scan_data, PixelsReadGlobalState &parallel_state,
                                            bool is_init_state = false);

        static PixelsReaderOption
        GetPixelsReaderOption(PixelsReadLocalState &local_state, PixelsReadGlobalState &global_state);

    private:
        static void TransformDuckdbType(const std::shared_ptr <TypeDescription> &type,
                                        vector <LogicalType> &return_types);

        static void TransformDuckdbChunk(PixelsReadLocalState &data,
                                         DataChunk &output,
                                         const std::shared_ptr <TypeDescription> &schema,
                                         unsigned long thisOutputChunkRows);

        static bool enable_filter_pushdown;
    };

} // namespace duckdb
#endif // EXAMPLE_C_PIXELSSCANFUNCTION_HPP