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CLICKHOUSEDOCS-548: Added some adopters to the list.

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139
docs/en/introduction/adopters.md
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@ -10,22 +10,159 @@
| [Appsflyer](https://www.appsflyer.com) | Mobile analytics | Main product | — | — | [Talk in Russian, July 2019](https://www.youtube.com/watch?v=M3wbRlcpBbY) |
| [Badoo](https://badoo.com) | Dating | Timeseries | — | — | [Slides in Russian, December 2019](https://presentations.clickhouse.tech/meetup38/forecast.pdf) |
| [Bloomberg](https://www.bloomberg.com/) | Finance, Media | Monitoring | 102 servers | — | [Slides, May 2018](https://www.slideshare.net/Altinity/http-analytics-for-6m-requests-per-second-using-clickhouse-by-alexander-bocharov) |
| [CARTO](https://carto.com/) | Business Intelligence | Geo analytics | — | — | [Geospatial processing with Clickhouse](https://carto.com/blog/geospatial-processing-with-clickhouse/) |
| [CERN](http://public.web.cern.ch/public/) | Research | Experiment | — | — | [Press release, April 2012](https://www.yandex.com/company/press_center/press_releases/2012/2012-04-10/) |
| [Cisco](http://public.web.cern.ch/public/) | Networking | Traffic analysis | — | — | [Lightning talk, October 2019](https://youtu.be/-hI1vDR2oPY?t=5057) |
| [Cisco](http://cisco.com/) | Networking | Traffic analysis | — | — | [Lightning talk, October 2019](https://youtu.be/-hI1vDR2oPY?t=5057) |
| [Citadel Securities](https://www.citadelsecurities.com/) | Finance | — | — | — | [Contribution, March 2019](https://github.com/ClickHouse/ClickHouse/pull/4774) |
| [Citymobil](https://city-mobil.ru) | Taxi | Analytics | — | — | [Blog Post in Russian, March 2020](https://habr.com/en/company/citymobil/blog/490660/) |
| [ContentSquare](https://contentsquare.com) | Web analytics | Main product | — | — | [Blog post in French, November 2018](http://souslecapot.net/2018/11/21/patrick-chatain-vp-engineering-chez-contentsquare-penser-davantage-amelioration-continue-que-revolution-constante/) |
| [Cloudflare](https://cloudflare.com) | CDN | Traffic analysis | 36 servers | — | [Blog post, May 2017](https://blog.cloudflare.com/how-cloudflare-analyzes-1m-dns-queries-per-second/), [Blog post, March 2018](https://blog.cloudflare.com/http-analytics-for-6m-requests-per-second-using-clickhouse/) |
| [Corunet](https://coru.net/) | Analytics | Main product | — | — | [Slides in English, April 2019 ](https://github.com/ClickHouse/clickhouse-presentations/blob/master/meetup21/predictive_models.pdf) |
| [Deutsche Bank](db.com) | Finance | BI Analytics | — | — | [Slides in English, October 2019](https://bigdatadays.ru/wp-content/uploads/2019/10/D2-H3-3_Yakunin-Goihburg.pdf) |
| [Exness](https://www.exness.com) | Trading | Metrics, Logging | — | — | [Talk in Russian, May 2019](https://youtu.be/_rpU-TvSfZ8?t=3215) |
| [Geniee](https://geniee.co.jp) | Ad network | Main product | — | — | [Blog post in Japanese, July 2017](https://tech.geniee.co.jp/entry/2017/07/20/160100) |
| [Idealista](www.idealista.com) | Real Estate | Analytics | — | — | [Blog Post in English, April 2019](https://clickhouse.yandex/blog/en/clickhouse-meetup-in-madrid-on-april-2-2019) |
| [Kontur](https://kontur.ru) | Software Development | Metrics | — | — | [Talk in Russian, November 2018](https://www.youtube.com/watch?v=U4u4Bd0FtrY) |
| [LifeStreet](https://cloudflare.com) | Ad network | Main product | — | — | [Blog post in Russian, February 2017](https://habr.com/en/post/322620/) |
| [Mail.ru Cloud Solutions](https://mcs.mail.ru/) | Cloud services | Main product | — | — | [Running ClickHouse Instance, in Russian](https://mcs.mail.ru/help/db-create/clickhouse#) |
| [MGID](https://www.mgid.com/) | Ad network | Web-analytics | --- | --- | [Our experience in implementing analytical DBMS ClickHouse, in Russian](http://gs-studio.com/news-about-it/32777----clickhouse---c) |
| [Qrator](https://qrator.net) | DDoS protection | Main product | — | — | [Blog Post, March 2019](https://blog.qrator.net/en/clickhouse-ddos-mitigation_37/) |
| [Tencent](https://www.tencent.com) | Messaging | Logging | — | — | [Talk in Chinese, November 2019](https://youtu.be/T-iVQRuw-QY?t=5050) |
| [S7 Airlines](https://www.s7.ru) | Airlines | Metrics, Logging | — | — | [Talk in Russian, March 2019](https://www.youtube.com/watch?v=nwG68klRpPg&t=15s) |
| [scireum GmbH](https://www.scireum.de/) | e-Commerce | ??? | — | — | [Talk in German, February 2020](https://www.youtube.com/watch?v=7QWAn5RbyR4) |
| [Spotify](https://www.spotify.com) | Music | Experimentation | — | — | [Slides, July 2018](https://www.slideshare.net/glebus/using-clickhouse-for-experimentation-104247173) |
| [Uber](https://www.uber.com) | Taxi | Logging | — | — | [Slides, February 2020](https://presentations.clickhouse.tech/meetup40/ml.pdf) |
| [Yandex Cloud](https://cloud.yandex.ru/services/managed-clickhouse) | Public Cloud | Main product | — | — | [Talk in Russian, December 2019](https://www.youtube.com/watch?v=pgnak9e_E0o) |
| [Yandex DataLens](https://cloud.yandex.ru/services/datalens) | Business Intelligence | Main product | — | — | [Slides in Russian, December 2019](https://presentations.clickhouse.tech/meetup38/datalens.pdf) |
| [Yandex Market](https://market.yandex.ru/) | e-Commerce | Metrics, Logging | — | — | [Talk in Russian, January 2019](https://youtu.be/_l1qP0DyBcA?t=478) |
| [Yandex Metrica](https://metrica.yandex.com) | Web analytics | Main product | 360 servers in one cluster, 1862 servers in one department | 66.41 PiB / 5.68 PiB | [Slides, February 2020](https://presentations.clickhouse.tech/meetup40/introduction/#13) |
| [ЦВТ](https://htc-cs.ru/) | Software Development | Metrics, Logging | — | — | [Blog Post, March 2019, in Russian](https://vc.ru/dev/62715-kak-my-stroili-monitoring-na-prometheus-clickhouse-i-elk) |
| --- | --- | --- | --- | --- | --- |
| --- | --- | --- | --- | --- | --- |
### Not checked mentions
- Bioinformatics - evolutionary genetics:
https://github.com/msestak/FindOrigin
"We are exploring evolution of novel genes in genomes because if seems that genomes are far from being static as previously believed and what actually happens is that new genes are constantly being added and old genes are lost."
- Search engine and analytics for Bitcoin transactions:
https://blockchair.com/
"We have quite large tables on just single server and everything works really fast &mdash with any filters and sorting everything is processed just instantly."
- https://www.octonica.ru/ презентация https://github.com/ClickHouse/clickhouse-presentations/blob/master/database_saturday_2018_2/octonica/meetup.pptx
### Stash
- [СБИС, Тензор](https://sbis.ru/about), Analytics. В своих вакансиях регулярно указывают ClickHouse + есть задание для студентов 2018 https://tensor.ru/stipend2018/projects Active Manager - Анализатор активности на странице, где подразумевается использование ClickHouse.
- Компания Republer https://republer.com/ О том, что они используют ClickHouse видно из вакансии https://telegram.me/nodejs_jobs_feed/607
- Kaspersky заявлен в нескольких презентациях, Однако живых публичных источников найти не получается. Поисковики приводят на сайт вакансий Касперского, но в явном виде ClickHouse там нигде не появляется. Есть https://careers.kaspersky.ru/tech/, поиск, на котором приводит на вакансию девопса, при этом в описании вакансии ClickHouse не упоминается. Вот такая штука есть https://sudonull.com/post/76060-The-second-mitap-of-the-Rust-community-in-Kaspersky-Lab-Kaspersky-Labs-blog
- Мегафон. На сайтах вакансий от него есть несколько вакансий с ClickHouse типа https://ekaterinburg.hh.ru/vacancy/35891497?utm_source=jooble.org&utm_medium=meta&utm_campaign=RU_paid_cpc_applicant_feed_magic1 и есть вот такая хрень https://newprolab.com/ru/dataengineer-megafon, с которой непонятно, что делать. Вакансии не кажутся хоть сколько-нибудь надёжным источником, поскольку сейчас есть - завтра нет. Как у касперского.
- [Quantrum.Team](https://quantrum.me). Непонятное комьюнити трейдеров, один из которых решил попробовать ClickHouse. https://quantrum.me/1709-clickhouse-i-python-dlya-xraneniya-istorii-cen/
- https://severalnines.com/database-blog/hybrid-oltpanalytics-database-workloads-replicating-mysql-data-clickhouse какая-то компания типа альтинити видимо.
- В презентациях есть Wikimedia Foundation, но реальных упоминаний об этом не нашел. Есть какой-то ответ в блоге https://www.mail-archive.com/analytics@lists.wikimedia.org/msg03619.html, но он не указывает прямо на использование ClickHouse. Вот этот вот указывает, но я с ходу не разобрал, что за источник вообще такой https://phabricator.wikimedia.org/T150343
- [Mercadona](mercadona.com) не нашел ни единой связи с ClickHouse.
- [Zara](zara.com) не нашел связи с ClickHouse.
- ByteDance, единственное прямое доказательство было ссылкой на уже не существующую вакансию.
[Original article](https://clickhouse.tech/docs/en/introduction/adopters/) <!--hide-->
- bdtc_2019
+ cern (Mail.ru, MGID,)
- cpp_russia_2019
- cpp_sprint_2019
- data_at_scale
- database_saturday_2018
- database_saturday_2018_2/pipeline
+ database_saturday_2018_2/octonica
- database_saturday_2019
+ dataops_2019 (CARTO, Mercadona, Zara, Idealista, Corunet, ... Cloudflare, Spotify, Amadeus, Bloomberg, Cisco, Deutsche Bank, Tencent, ByteDance)
drafts yandex/ClickHouse -> ClickHouse/ClickHouse, part 2 5 months ago
evolution Correction on KuaiShou company name 3 months ago
group_by Changed tabs to spaces in code [#CLICKHOUSE-3]. 3 years ago
hash_tables yandex/ClickHouse -> ClickHouse/ClickHouse, part 1 5 months ago
highload2016 Added historical presentation from HighLoad 2016 11 days ago
highload2017 yandex/ClickHouse -> ClickHouse/ClickHouse, part 1 5 months ago
highload2018 yandex/ClickHouse -> ClickHouse/ClickHouse, part 1 5 months ago
highload2019 Added presentation from HighLoad++ 2019 4 months ago
highload_siberia_2018 yandex/ClickHouse -> ClickHouse/ClickHouse, part 1 5 months ago
highload_siberia_2019 Added another presentation from HighLoad Siberia 2019 8 months ago
highload_spb_2019 Added presentation from Saint Highload 2019 11 months ago
hse_2019 Added one more presentation from HSE 8 months ago
internals add sources for the internals presentation 2 years ago
it_rzn_2019 Updated presentation from IT Rzn 3 months ago
meetup10 yandex/ClickHouse -> ClickHouse/ClickHouse, part 1 5 months ago
meetup11 yandex/ClickHouse -> ClickHouse/ClickHouse, part 1 5 months ago
meetup12 yandex/ClickHouse -> ClickHouse/ClickHouse, part 1 5 months ago
meetup13 yandex/ClickHouse -> ClickHouse/ClickHouse, part 1 5 months ago
meetup14 yandex/ClickHouse -> ClickHouse/ClickHouse, part 1 5 months ago
meetup15 yandex/ClickHouse -> ClickHouse/ClickHouse, part 1 5 months ago
meetup16 Added all presentations from Summer Berlin Meetup 2 years ago
meetup17 yandex/ClickHouse -> ClickHouse/ClickHouse, part 1 5 months ago
meetup18 yandex/ClickHouse -> ClickHouse/ClickHouse, part 1 5 months ago
meetup19 yandex/ClickHouse -> ClickHouse/ClickHouse, part 1 5 months ago
meetup20 yandex/ClickHouse -> ClickHouse/ClickHouse, part 1 5 months ago
meetup21 yandex/ClickHouse -> ClickHouse/ClickHouse, part 1 5 months ago
meetup22 yandex/ClickHouse -> ClickHouse/ClickHouse, part 1 5 months ago
meetup23 Added presentations from ClickHouse Meetup in San Francisco 9 months ago
meetup24 yandex/ClickHouse -> ClickHouse/ClickHouse, part 2 5 months ago
meetup25 Add lost slides from Novosibirsk 8 months ago
meetup26 add one more slide deck from Minsk meetup 8 months ago
meetup27 Added more presentations from 27th meetup. 7 months ago
meetup28 yandex/ClickHouse -> ClickHouse/ClickHouse, part 1 5 months ago
meetup29 Merge branch 'master' of github.com:ClickHouse/clickhouse-presentations 5 months ago
meetup3 Presentation: added analysts part [#CLICKHOUSE-2]. 3 years ago
meetup30 Add more slides from Paris Meetup 4 months ago
meetup31 Correction on KuaiShou company name 3 months ago
meetup32 Correction on KuaiShou company name 3 months ago
meetup33 Correction on KuaiShou company name 3 months ago
meetup34 Add tokyo meetup 3 months ago
meetup35 Added half of presentations from ClickHouse Instanbul Meetup 3 months ago
meetup36/new_features Added a presentation from 36th ClickHouse Meetup 3 months ago
meetup37 Moved presentation from 37th ClickHouse Meetup 3 months ago
meetup38 Remaining Moscow meetup slides 3 months ago
meetup39 Remaining slides from SF meetup 14 days ago
meetup4 yandex/ClickHouse -> ClickHouse/ClickHouse, part 1 5 months ago
meetup40 More slides from NYC meetup 19 days ago
meetup5 Added presentation from 5th meetup [#CLICKHOUSE-3]. 3 years ago
meetup6 yandex/ClickHouse -> ClickHouse/ClickHouse, part 1 5 months ago
meetup7 yandex/ClickHouse -> ClickHouse/ClickHouse, part 1 5 months ago
meetup9 yandex/ClickHouse -> ClickHouse/ClickHouse, part 1 5 months ago
misc Added resized images for "evolution" article. 3 years ago
percona2017 percona2017 3 years ago
percona2018 Added part of presentations from Percona 2018 and Sunnyvale Meetup 2 years ago
percona2019 yandex/ClickHouse -> ClickHouse/ClickHouse, part 1 5 months ago
percona_europe_2017 add presentation from Percona Europe 2017 2 years ago
percona_europe_2018 yandex/ClickHouse -> ClickHouse/ClickHouse, part 1 5 months ago
percona_europe_2019 Merge branch 'master' of github.com:ClickHouse/clickhouse-presentations 5 months ago
pgday2017 yandex/ClickHouse -> ClickHouse/ClickHouse, part 1 5 months ago
rit2017 add sources for RIT++2017 3 years ago
rit2018 yandex/ClickHouse -> ClickHouse/ClickHouse, part 1 5 months ago
rit2019 Add rit2019 presentation 8 months ago
roadmap2018 Added roadmap for 2018..2019 15 months ago
shad2017 yandex/ClickHouse -> ClickHouse/ClickHouse, part 1 5 months ago
tbd yandex/ClickHouse -> ClickHouse/ClickHouse, part 1 5 months ago
tutorials Create catboost_with_clickhouse_en.md 2 years ago
unknown_developers_reissue Added slightly modified version of "Unknown developers" presentation 15 months ago
uwdc yandex/ClickHouse -> ClickHouse/ClickHouse, part 1 5 months ago
yatalks_2019 yandex/ClickHouse -> ClickHouse/ClickHouse, part 1 5 months ago
yatalks_2019_moscow Fixed error in presentation from YaTalks 2019 in Moscow 3 months ago

4
docs/en/query_language/agg_functions/reference.md
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@ -1034,7 +1034,7 @@ Alias: `medianExactWeighted`.
- `level` — Level of quantile. Optional parameter. Constant floating-point number from 0 to 1. We recommend using a `level` value in the range of `[0.01, 0.99]`. Default value: 0.5. At `level=0.5` the function calculates [median](https://en.wikipedia.org/wiki/Median).
- `expr` — Expression over the column values resulting in numeric [data types](../../data_types/index.md#data_types), [Date](../../data_types/date.md) or [DateTime](../../data_types/datetime.md).
- `weight` — Column with weights of sequence elements. Weight is a number of value occurrences.
- `weight` — Column with weights of sequence members. Weight is a number of value occurrences.
**Returned value**
@ -1300,7 +1300,7 @@ Result:
## quantileTDigestWeighted {#quantiletdigestweighted}
Computes an approximate [quantile](https://en.wikipedia.org/wiki/Quantile) of a numeric data sequence using the [t-digest](https://github.com/tdunning/t-digest/blob/master/docs/t-digest-paper/histo.pdf) algorithm. The function takes into account the weight of each sequence number. The maximum error is 1%. Memory consumption is `log(n)`, where `n` is a number of values.
Computes an approximate [quantile](https://en.wikipedia.org/wiki/Quantile) of a numeric data sequence using the [t-digest](https://github.com/tdunning/t-digest/blob/master/docs/t-digest-paper/histo.pdf) algorithm. The function takes into account the weight of each sequence member. The maximum error is 1%. Memory consumption is `log(n)`, where `n` is a number of values.
The performance of the function is lower than performance of [quantile](#quantile) or [quantileTiming](#quantiletiming). In terms of the ratio of State size to precision, this function is much better than `quantile`.

22
docs/ru/query_language/agg_functions/reference.md
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@ -860,7 +860,7 @@ FROM t
quantile(level)(expr)
```
Альяс: `median`.
Алиас: `median`.
**Параметры**
@ -870,7 +870,7 @@ quantile(level)(expr)
**Возвращаемое значение**
- Приблизительную квантиль заданного уровня.
- Приблизительный квантиль заданного уровня.
Тип:
@ -926,7 +926,7 @@ SELECT quantile(val) FROM t
quantileDeterministic(level)(expr, determinator)
```
Альяс: `medianDeterministic`.
Алиас: `medianDeterministic`.
**Параметры**
@ -936,7 +936,7 @@ quantileDeterministic(level)(expr, determinator)
**Возвращаемое значение**
- Приблизительную квантиль заданного уровня.
- Приблизительный квантиль заданного уровня.
Тип:
@ -993,7 +993,7 @@ SELECT quantileDeterministic(val, 1) FROM t
quantileExact(level)(expr)
```
Альяс: `medianExact`.
Алиас: `medianExact`.
**Параметры**
@ -1046,7 +1046,7 @@ SELECT quantileExact(number) FROM numbers(10)
quantileExactWeighted(level)(expr, weight)
```
Альяс: `medianExactWeighted`.
Алиас: `medianExactWeighted`.
**Параметры**
@ -1110,7 +1110,7 @@ SELECT quantileExactWeighted(n, val) FROM t
quantileTiming(level)(expr)
```
Альяс: `medianTiming`.
Алиас: `medianTiming`.
**Параметры**
@ -1192,7 +1192,7 @@ SELECT quantileTiming(response_time) FROM t
quantileTimingWeighted(level)(expr, weight)
```
Альяс: `medianTimingWeighted`.
Алиас: `medianTimingWeighted`.
**Параметры**
@ -1276,7 +1276,7 @@ SELECT quantileTimingWeighted(response_time, weight) FROM t
quantileTDigest(level)(expr)
```
Альяс: `medianTDigest`.
Алиас: `medianTDigest`.
**Параметры**
@ -1333,7 +1333,7 @@ SELECT quantileTDigest(number) FROM numbers(10)
quantileTDigestWeighted(level)(expr, weight)
```
Альяс: `medianTDigest`.
Алиас: `medianTDigest`.
**Параметры**
@ -1343,7 +1343,7 @@ quantileTDigestWeighted(level)(expr, weight)
**Возвращаемое значение**
- Приблизительную квантиль заданного уровня.
- Приблизительный квантиль заданного уровня.
Тип: