ClickHouse/src/Storages/MergeTree/PartMetadataManagerOrdinary.cpp

#include "PartMetadataManagerOrdinary.h"

#include <IO/ReadBufferFromFileBase.h>
#include <Compression/CompressedReadBufferFromFile.h>
#include <Disks/IDisk.h>
#include <Storages/MergeTree/IMergeTreeDataPart.h>

namespace DB
{

std::unique_ptr<ReadBuffer> PartMetadataManagerOrdinary::read(const String & file_name) const
{
    size_t file_size = part->getDataPartStorage().getFileSize(file_name);
    auto res = part->getDataPartStorage().readFile(file_name, ReadSettings().adjustBufferSize(file_size), file_size, std::nullopt);

    if (isCompressedFromFileName(file_name))
        return std::make_unique<CompressedReadBufferFromFile>(std::move(res));

    return res;
}

bool PartMetadataManagerOrdinary::exists(const String & file_name) const
{
    return part->getDataPartStorage().exists(file_name);
}


}