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

{
    Strings paths;
    if (relative_data_path.empty())
        return paths;
    for (const DiskPtr & disk : data_volume->getDisks())
        paths.push_back(disk->getPath() + relative_data_path);
    return paths;
}
void StorageDistributed::truncate(const ASTPtr &, const StorageMetadataPtr &, ContextPtr, TableExclusiveLockHolder &)
{
    std::lock_guard lock(cluster_nodes_mutex);
    LOG_DEBUG(log, "Removing pending blocks for async INSERT from filesystem on TRUNCATE TABLE");
    for (auto it = cluster_nodes_data.begin(); it != cluster_nodes_data.end();)
    {
        it->second.directory_monitor->shutdownAndDropAllData();
        it = cluster_nodes_data.erase(it);
    }
    LOG_DEBUG(log, "Removed");
}
StoragePolicyPtr StorageDistributed::getStoragePolicy() const
{
    return storage_policy;
}
void StorageDistributed::createDirectoryMonitors(const DiskPtr & disk)