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

while (!task->stream_cancelled)
            {
                if (!checkDependencies(table_id))
                {
                    
                    reschedule = true;
                    break;
                }
                LOG_DEBUG(log, "Started streaming to {} attached views", dependencies_count);
                if (streamToViews())
                {
                    LOG_TRACE(log, "Stream stalled. Reschedule.");
                    if (milliseconds_to_wait
                        < static_cast<uint64_t>(filelog_settings->poll_directory_watch_events_backoff_max.totalMilliseconds()))
                        milliseconds_to_wait *= filelog_settings->poll_directory_watch_events_backoff_factor.value;
                    break;
                }
                else
                {
                    milliseconds_to_wait = filelog_settings->poll_directory_watch_events_backoff_init.totalMilliseconds();
                }
                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.");
                    reschedule = true;
                    break;
                }
            }