```
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] [                                                                                                                                                                                                                                        <=>               ]
```

else
                            file_infos.context_by_name.emplace(file_name, FileContext{.inode = inode});
                        
                        if (auto it = file_infos.meta_by_inode.find(inode); it != file_infos.meta_by_inode.end())
                        {
                            auto old_name = it->second.file_name;
                            it->second.file_name = file_name;
                            if (std::filesystem::exists(getFullMetaPath(old_name)))
                                std::filesystem::rename(getFullMetaPath(old_name), getFullMetaPath(file_name));
                        }
                        
                        else
                            file_infos.meta_by_inode.emplace(inode, FileMeta{.file_name = file_name});
                    }
                }
            }
        }
    }
    std::vector<String> valid_files;
    
    for (const auto & file_name : file_infos.file_names)
    {
        if (auto it = file_infos.context_by_name.find(file_name); it != file_infos.context_by_name.end())
        {
            if (it->second.status == FileStatus::REMOVED)
            {
                
                
                auto inode = it->second.inode;