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

}
void StorageDistributed::shutdown()
{
    monitors_blocker.cancelForever();
    std::lock_guard lock(cluster_nodes_mutex);
    LOG_DEBUG(log, "Joining background threads for async INSERT");
    cluster_nodes_data.clear();
    LOG_DEBUG(log, "Background threads for async INSERT joined");
}
void StorageDistributed::drop()
{
    
    
    
    
    
    
    
    
    shutdown();
    
    if (relative_data_path.empty())
        return;
    LOG_DEBUG(log, "Removing pending blocks for async INSERT from filesystem on DROP TABLE");
    auto disks = data_volume->getDisks();
    for (const auto & disk : disks)
        disk->removeRecursive(relative_data_path);
    LOG_DEBUG(log, "Removed");
}
Strings StorageDistributed::getDataPaths() const