```
ubuntu@ip-172-31-79-147:/opt/downloads$ clickhouse-local --max_threads 8 --query "WITH parseDateTimeBestEffort(extract(_path, 'pageviews-([\\d\\-]+)\\.gz$')) AS time, splitByChar(' ', line) AS values, splitByChar('.', values[1]) AS projects SELECT time, projects[1] AS project, projects[2] AS subproject, values[2] AS path, (values[3])::UInt64 AS hits FROM file('pageviews*.gz', LineAsString) WHERE length(values) >= 3" | pv > /dev/null
^C01GiB 0:01:08 [ 129MiB/s] [                                                                                                                                                                   <=>                                                                                    ]

ubuntu@ip-172-31-79-147:/opt/downloads$ clickhouse-local --max_threads 8 --query "WITH parseDateTimeBestEffort(extract(toLowCardinality(_path), 'pageviews-([\\d\\-]+)\\.gz$')) AS time, splitByChar(' ', line) AS values, splitByChar('.', values[1]) AS projects SELECT time, projects[1] AS project, projects[2] AS subproject, values[2] AS path, (values[3])::UInt64 AS hits FROM file('pageviews*.gz', LineAsString) WHERE length(values) >= 3" | pv > /dev/null
^C46GiB 0:00:48 [ 175MiB/s] [                                                                                                                                                                                                                                        <=>               ]
```

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;
                }