```
touch /tmp/aaa.csv

CREATE TABLE log (A String) ENGINE= FileLog('/tmp/aaa.csv', 'CSV');
DB::Exception: The absolute data path should be inside `user_files_path`(/var/lib/clickhouse/user_files/). (BAD_ARGUMENTS)


CREATE TABLE log (A String) ENGINE= FileLog('/tmp/aaa.csv', 'CSV');
DB::Exception: Metadata files already exist by path: /var/lib/clickhouse/.filelog_storage_metadata/default/log, remove them manually if it is intended. (TABLE_METADATA_ALREADY_EXISTS)
```
assert(file_infos.file_names.size() == file_infos.meta_by_inode.size());
    assert(file_infos.file_names.size() == file_infos.context_by_name.size());
    auto events = directory_watch->getEventsAndReset();
    for (const auto & [file_name, event_infos] : events)
    {
        String file_path = getFullDataPath(file_name);
        for (const auto & event_info : event_infos.file_events)
        {
            switch (event_info.type)
            {
                case DirectoryWatcherBase::DW_ITEM_ADDED:
                {
                    LOG_TRACE(log, "New event {} watched, file_name: {}", event_info.callback, file_name);
                    
                    if (std::filesystem::is_regular_file(file_path))
                    {
                        auto inode = getInode(file_path);
                        file_infos.file_names.push_back(file_name);
                        if (auto it = file_infos.meta_by_inode.find(inode); it != file_infos.meta_by_inode.end())
                            it->second = FileMeta{.file_name = file_name};
                        else
                            file_infos.meta_by_inode.emplace(inode, FileMeta{.file_name = file_name});
                        if (auto it = file_infos.context_by_name.find(file_name); it != file_infos.context_by_name.end())
                            it->second = FileContext{.status = FileStatus::OPEN, .inode = inode};
                        else
                            file_infos.context_by_name.emplace(file_name, FileContext{.inode = inode});
                    }
                    break;
                }