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ClickHouse® is a real-time analytics DBMS
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Sometimes it is useful to know how much does this data will take on disk, with blockSerializedSize() you can know this (although without compression). This can be a major knowledge for various aggregation functions that tracking some state (i.e. uniqCombined). |
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ClickHouse is an open-source column-oriented database management system that allows generating analytical data reports in real time.
Useful Links
- Official website has quick high-level overview of ClickHouse on main page.
- Tutorial shows how to set up and query small ClickHouse cluster.
- Documentation provides more in-depth information.
- YouTube channel has a lot of content about ClickHouse in video format.
- Blog contains various ClickHouse-related articles, as well as announces and reports about events.
- Contacts can help to get your questions answered if there are any.
- You can also fill this form to meet Yandex ClickHouse team in person.
Upcoming Events
- ClickHouse Meetup in San Francisco on February 5.
- ClickHouse Meetup in New York on February 11.