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

if (!checkDependencies(table_id))
                    break;
                LOG_DEBUG(log, "Started streaming to {} attached views", dependencies_count);
                
                auto some_stream_is_stalled = streamToViews();
                if (some_stream_is_stalled)
                {
                    LOG_TRACE(log, "Stream(s) stalled. Reschedule.");
                    break;
                }
                auto ts = std::chrono::steady_clock::now();
                auto duration = std::chrono::duration_cast<std::chrono::milliseconds>(ts-start_time);
                if (duration.count() > MAX_THREAD_WORK_DURATION_MS)
                {
                    LOG_TRACE(log, "Thread work duration limit exceeded. Reschedule.");
                    break;
                }
            }
        }
    }
    catch (...)
    {
        tryLogCurrentException(__PRETTY_FUNCTION__);
    }
    mv_attached.store(false);
    
    if (!task->stream_cancelled)
        task->holder->scheduleAfter(RESCHEDULE_MS);
}
bool StorageKafka::streamToViews()