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Raúl Marín
ee7b3e933b
readQueryParameters used NameToNameMap::emplace, which keeps the first occurrence of a duplicate key. The Settings-based path it replaced kept the last occurrence (BaseSettings::read overwrites the same custom setting entry on each occurrence of its name), so a driver relying on appending an override without deduplicating first would see different behavior. Use insert_or_assign to keep the old semantics, and add gtest coverage for the round trip and the duplicate-name case.
ClickHouse® is an open-source column-oriented database management system that allows generating analytical data reports in real-time.
How To Install (Linux, macOS, FreeBSD)
curl https://clickhouse.com/ | sh
Useful Links
- Official website has a quick high-level overview of ClickHouse on the main page.
- ClickHouse Cloud ClickHouse as a service, built by the creators and maintainers.
- Tutorial shows how to set up and query a small ClickHouse cluster.
- Documentation provides more in-depth information.
- YouTube channel has a lot of content about ClickHouse in video format.
- ClickHouse Theater contains presentations and videos about ClickHouse.
- Slack and Telegram allow chatting with ClickHouse users in real-time.
- Blog contains various ClickHouse-related articles, as well as announcements and reports about events.
- Bluesky and X for short news.
- Code Browser (github.dev) with syntax highlighting, powered by github.dev.
- Contacts can help to get your questions answered if there are any.
Monthly Release & Community Call
Join us for the ClickHouse 26.5 Release Call on May 21, 2026.
Watch all release presentations and videos at ClickHouse Theater and YouTube Playlist.
Upcoming Events
Keep an eye out for upcoming meetups and events around the world. Want to speak? Apply here You can also peruse ClickHouse Events for a list of all upcoming trainings, meetups, speaking engagements, etc.
Upcoming meetups
- AI Builders Night SF - July 14th, 2026
- Data Engineering Things Seattle Meetup - July 16th, 2026
- Bangkok OSS & Data Evening: Queries, Code & Community - July 23rd, 2026
- Happy Hour warm-up: AWS Summit Bogotá - July 30th, 2026
- ClickHouse Singapore August 2026 Edition - August 4th, 2026
- ClickHouse Jakarta Meetup - August 5th, 2026
- AI Demo Night - August 6th, 2026
- Data Engineering Meetup - August 11th, 2026
- AI Demo Night - August 18th, 2026
- NYC Apache Iceberg™ Community Meetup - August 20th, 2026
- Bangalore Iceberg Community Meetup - August 22nd, 2026
- Vancouver Meetup - August 25th, 2026
- The Agentic Data Stack: Berlin - September 2nd, 2026
- Amsterdam Meetup - September 15th, 2026
- Cape Town Meetup - September 15th, 2026
- Rows And Columns Summit - September 22nd, 2026
- Paris Meetup - September 29th, 2026
Recent meetups
- Happy Hour Open Source de Montréal - July 9th, 2026
- AI Builders Night NY - July 8th, 2026
- AI Builders Offstage: Docker & ClickHouse - July 7th, 2026
- AI Demo Night SF - July 1st, 2026
- KL Meetup - June 26th, 2026
- Seattle Iceberg Meetup - June 25th, 2026
Recent Recordings
- Recent Meetup Videos: Meetup Playlist Whenever possible recordings of the ClickHouse Community Meetups are edited and presented as individual talks.
Interested in joining ClickHouse and making it your full-time job?
ClickHouse is a nice DBMS, and it's a good place to work.
Check out our current openings here: https://clickhouse.com/company/careers
Email: [email protected]!