If you execute this query in interactive mode of `clickhouse-client`:

```
SELECT WatchID::Int64, JavaEnable, toValidUTF8(Title), GoodEvent, EventTime, EventDate, CounterID::Int32, ClientIP::Int32, RegionID::Int32, UserID::Int64, CounterClass, OS, UserAgent, toValidUTF8(URL), toValidUTF8(Referer), Refresh, RefererCategoryID::Int16, RefererRegionID::Int32, URLCategoryID::Int16, URLRegionID::Int32, ResolutionWidth::Int16, ResolutionHeight::Int16, ResolutionDepth, FlashMajor, FlashMinor, FlashMinor2, NetMajor, NetMinor, UserAgentMajor::Int16, UserAgentMinor, CookieEnable, JavascriptEnable, IsMobile, MobilePhone, toValidUTF8(MobilePhoneModel), toValidUTF8(Params), IPNetworkID::Int32, TraficSourceID, SearchEngineID::Int16, toValidUTF8(SearchPhrase), AdvEngineID, IsArtifical, WindowClientWidth::Int16, WindowClientHeight::Int16, ClientTimeZone, ClientEventTime, SilverlightVersion1, SilverlightVersion2, SilverlightVersion3::Int32, SilverlightVersion4::Int16, toValidUTF8(PageCharset), CodeVersion::Int32, IsLink, IsDownload, IsNotBounce, FUniqID::Int64, toValidUTF8(OriginalURL), HID::Int32, IsOldCounter, IsEvent, IsParameter, DontCountHits, WithHash, HitColor, LocalEventTime, Age, Sex, Income, Interests::Int16, Robotness, RemoteIP::Int32, WindowName, OpenerName, HistoryLength, BrowserLanguage, BrowserCountry, toValidUTF8(SocialNetwork), toValidUTF8(SocialAction), HTTPError, SendTiming, DNSTiming, ConnectTiming, ResponseStartTiming, ResponseEndTiming, FetchTiming, SocialSourceNetworkID, toValidUTF8(SocialSourcePage), ParamPrice, toValidUTF8(ParamOrderID), ParamCurrency, ParamCurrencyID::Int16, OpenstatServiceName, OpenstatCampaignID, OpenstatAdID, OpenstatSourceID, UTMSource, UTMMedium, UTMCampaign, UTMContent, UTMTerm, FromTag, HasGCLID, RefererHash::Int64, URLHash::Int64, CLID::Int32
FROM hits_100m_obfuscated
INTO OUTFILE 'dump.csv'
FORMAT CSV
```

progress bar is displaying only occasionally and instantly cleared.
/// Poll for changes after a cancellation check, otherwise it never reached
            /// because of progress updates from server.
            if (connection->poll())
                break;
        }
        if (!receiveAndProcessPacket(parsed_query, cancelled))
            break;
    }
    if (cancelled && is_interactive)
        std::cout << "Query was cancelled." << std::endl;
}
/// Receive a part of the result, or progress info or an exception and process it.
/// Returns true if one should continue receiving packets.
/// Output of result is suppressed if query was cancelled.
bool ClientBase::receiveAndProcessPacket(ASTPtr parsed_query, bool cancelled)
{
    Packet packet = connection->receivePacket(
    switch (packet.type)
    {
        case Protocol::Server::PartUUIDs:
            return true;
        case Protocol::Server::Data:
            
                onData(packet.block, parsed_query
            return true;
        case Protocol::Server::Progress:
            onProgress(packet.progress
            return true;
        case Protocol::Server::ProfileInfo:
            onProfileInfo(packet.profile_info