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Download: http://clickhouse.com
GitHub: http://clickhou.se/GitHub
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ClickHouse

@ClickHouseDB

ClickHouse is the fastest open-source OLAP database ⚡ Download: http://clickhouse.com GitHub: http://clickhou.se/GitHub Slack: http://clickhouse.com/slack

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The open-source Agentic Data Stack is here 🔥 👉 clickhou.se/3JLVPI1 Today, we’re excited to share that we’ve joined forces with @LibreChatAI. Together, ClickHouse and LibreChat form the foundation of the open-source Agentic Data Stack, empowering teams to deploy AI agents…


ClickHouse 25.10 added three SQL features that won't change your life but will definitely clean up some ugly queries. clickhou.se/4rnEI07 🔸 `IS NOT DISTINCT FROM` for null comparisons that actually return true/false 🔸 Negative LIMIT and OFFSET to grab recent rows without…


🍂 Thanksgiving dinner and production logs have something in common: there's a LOT to digest. clickhou.se/49HGnaC Event Patterns in ClickStack help you sample what matters - automatically clustering similar logs, surfacing anomalies, and cutting through the noise. It’s…


Join us for our year-end ClickHouse meetup in Jakarta! 🎉 Come hang out with the community, swap stories from 2025, and get a sneak peek of what’s coming next. 📍 GoWork Plaza Indonesia, Level 5 📅 Tuesday, December 9 ⏰ 6:30 PM (start with networking and light dinner) Spots…

ClickHouseDB's tweet image. Join us for our year-end ClickHouse meetup in Jakarta! 🎉

Come hang out with the community, swap stories from 2025, and get a sneak peek of what’s coming next.
📍 GoWork Plaza Indonesia, Level 5
📅 Tuesday, December 9
⏰ 6:30 PM (start with networking and light dinner)

Spots…

Can you 4x OTel thoughput with Rust? Meet Rotel: pushing 460K spans/sec/core (vs 130k) The @streamfold team told us how it works -> clickhou.se/4rju9en ClickHouse is fast at ingesting OpenTelemetry data - so fast that ingestion layers sometimes struggle to keep up. The…


Testing databases is hard. Testing them *well* is even harder. clickhou.se/49rnlVM Earlier this year, we shared how BuzzHouse was built to bridge a specific gap: generating complex, correct SQL queries to find bugs that other fuzzers miss. The deep dive covers: - The…


Are you joining the ClickHouse 25.11 Release Call this week? There is feature overviews, live demos, time for Q&A. I bet you can find the changelog if you peruse our GitHub. clickhouse.com/company/events…


A few years back, we introduced ClickHouse Fiddle: a SQL playground where you can test queries without installing anything 💻 clickhou.se/47tzpEB It's still one of the fastest ways to experiment with ClickHouse: 🔹 Run queries on any ClickHouse version from your browser…


Ready for some major ClickHouse news? November's newsletter is here! 🚀 We acquired LibreChat to build the open-source Agentic Data Stack - query your data in plain English. clickhou.se/48xbjZ1 Plus: ⚡ QBit vector search 📊 24x faster JOINs 🏗️ 170x log compression 🔧…


From ad bidding to AI incident command to glucose forecasting: see how teams used ClickHouse for real‑time agents at the AWS MCP Hackathon in San Francisco. ⚡️ Recap + spotlights → clickhou.se/487DFZA


Welcome back to House Party. This time, it's the SQL. 🕺 🪩 We’re bringing the Chainsmokers back to Vegas for another epic night of music, food, and drink. If you’ll be in town for AWS re:Invent, you won’t want to miss it. 👉 RSVP at clickhou.se/43Gq6Pr


After outgrowing MySQL, the team at @fabfunnel made a list of requirements for their new database: clickhou.se/4a1TTpq 📌 Real-time inserts 📌 Sub-second queries 📌 Columnar storage 📌 SQL syntax 📌 Minimal ops overhead They found all that and more in ClickHouse Cloud ✅


🎤 Bangkok, you’re up! ICYMI, we have Open Mic Lightning Talks at the ClickHouse Bangkok Meetup next Tuesday, November 25. Got a spicy query, a tiny tip, or a 3–5 min ClickHouse story? Jump on the mic! 🐣 First-time speakers welcome. 🦁 Brave volunteers get a limited-edition…

ClickHouseDB's tweet image. 🎤 Bangkok, you’re up!
ICYMI, we have Open Mic Lightning Talks at the ClickHouse Bangkok Meetup next Tuesday, November 25. Got a spicy query, a tiny tip, or a 3–5 min ClickHouse story? Jump on the mic!

🐣 First-time speakers welcome.
🦁 Brave volunteers get a limited-edition…

⚠️ Mixing memory allocators is asking for trouble. clickhou.se/3LPhRdC Upgrading chDB to ClickHouse 25.8 exposed exactly this problem: when you embed ClickHouse in Python, you're mixing two different allocators (Python's malloc and jemalloc). If memory allocated by one…


A few years ago, @Klaviyo hit a scaling wall. clickhou.se/4o8lUPM Their segmentation engine took over an hour to evaluate customer segments, with logic spread across Python, MySQL, and Cassandra. For a rapidly growing marketing platform, they needed something faster.…


We’re excited to announce a new integration between ClickHouse and Microsoft OneLake, powered by OneLake Tables APIs + Apache Iceberg. With this update, you can run lightning-fast queries from ClickHouse directly on Iceberg tables in OneLake - with zero data movement required.…


New ClickStack guides for infrastructure observability! clickhou.se/4r4a9fO Get your observability data into HyperDX in minutes: → Kafka metrics → Kubernetes cluster visibility → Nginx logs and traces → PostgreSQL logs and metrics → Redis logs and metrics And even…


SaaS security platform @recolabs_ai ingests 12B events/day, runs 60B reads and 30B writes, and runs continuous scans across PBs of data. clickhou.se/4r5BONl “Postgres can’t do that—but @ClickHouseDB does it in seconds.” Read the story of Reco’s migration to ClickHouse…


How do you make hashing 2x faster? Add some Rust 🦀 clickhou.se/49GdwDo A few years back, we integrated the BLAKE3 hash function (written in Rust) into ClickHouse as an experiment. The results: 🔹 2x faster than SHA256 🔹 Faster than MD5, but actually secure 🔹 Protected…


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