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Today we're excited to announce that executable UDFs are now available in public beta on ClickHouse Cloud. You can write a function in Python, upload it as a zip to your cluster, and call it from SQL like any built-in.
A Day 2 recap of Open House 2026 covering ClickHouse's 10 years of open source, the House Mates partner program launch, and ecosystem announcements from Fivetran, Sigma, dbt, Notion, Replit, and Google Cloud.
ClickHouse today opened Open House 2026, its second annual user conference, with a set of announcements that mark one of the company's most active quarters since founding.
Today we welcome over 500 data engineers to our annual user conference in San Francisco and announce some exciting product launches and company milestones.
At Open House 2026, we announced ClickStack Cloud in private preview, AI Notebooks in beta, and the ClickStack MCP server: three updates that make observability on ClickHouse faster to get started with, easier to investigate in, and more...
ClickHouse Cloud introduces multi-stage distributed query execution, a new foundation for scaling single queries across many nodes and accelerating large joins and high-cardinality aggregations.
Postgres managed by ClickHouse is now in public beta - a fully managed, NVMe-backed Postgres service with native CDC into ClickHouse and a unified query layer via pg_clickhouse.
Introducing CostBench, an open benchmark that turns cloud data warehouse runtime and billing models into comparable performance-per-dollar results.
Introducing ClickStack Cloud: a fully managed, serverless observability platform built on ClickHouse where you send OpenTelemetry data to a managed endpoint and immediately explore logs, metrics, and traces without operating any...
A full recap of Day 1 at Open House 2026, covering every major announcement across ClickHouse Cloud, Postgres, distributed queries, ClickPipes, ClickHouse Agents, Langfuse V4, ClickStack, and the House Mates partner program.
5 Countries, 12 Days, One ClickHouse: Inside Alexey's APJ AI tour
We are launching House Mates, a partner community and program bringing together 60+ ISV, consulting, and channel partners to help customers build, scale, and buy ClickHouse solutions with confidence.
How we integrated the Rust Delta Kernel to replace our native Delta Lake implementation, reducing maintenance overhead while unlocking writes, schema evolution, time travel, and partition pruning.
Learn how to use ClickHouse's SAMPLE BY clause to run fast, approximate queries on large datasets with minimal accuracy trade-off.
Welcome to the May 2026 ClickHouse newsletter, which will round up what’s happened in real-time data warehouses over the last month.
We're releasing clickhousectl v0.2.0. This release adds Postgres, ClickPipes, SQL over HTTP, a few agent-friendly output tweaks, and a standalone Rust client library for the ClickHouse Cloud API.
How ChatFeatured cut analytics query times from 2.5 minutes to under a second by migrating from PlanetScale Postgres to Postgres managed by ClickHouse, in just 30 minutes.
In this blog, we explore why high cardinality behaves fundamentally differently in column-oriented databases like ClickHouse, and why the costs appear in very different places than in traditional series-based systems like Prometheus.
How the D. E. Shaw group replaced its previous observability platform with ClickHouse to handle high-cardinality metrics at scale, achieving 7x better query performance and enabling multi-year capacity planning across millions of compute...
Why does high cardinality break Prometheus but not ClickHouse? In Part 1, we explore the architectural tradeoffs of Prometheus and other series-based systems, showing how cardinality impacts memory, ingestion, querying, and operational...
A deep dive into how pg_clickhouse's Foreign Data Wrapper decides what SQL to push down to ClickHouse versus execute locally in Postgres.
Learn how ClickStack’s new SQL-powered charting and alerting unlock anomaly detection, rolling baselines, and advanced observability workflows directly on top of ClickHouse, without relying on external tooling.
Learn how ClickHouse Cloud's Join table engine enables fast, updatable in-memory lookups for dimensional modeling, with automatic upserts, deduplication, and data compaction powered by ReplacingMergeTree under the hood.
Avride replaced Apache Iceberg with ClickHouse Cloud, cutting index lookup latency from 20 seconds to under 100ms and ingestion from hours to seconds.
ClickHouse 26.4 is here! In this release, more features become SQL compatible, COUNT DISTINCT gets faster, EXPLAIN gets even prettier, and more
Query Insights is now in preview for ClickHouse Cloud Managed Postgres: every query pattern your database runs, ranked by impact, with the diagnostic picture of why each one is slow.
Agentic analytics makes query-readiness a write-side cost problem. This post compares Snowflake and ClickHouse under continuous ingest, showing how ClickHouse obtains query-ready data at 22× lower cost and delivers 31× better write-side...
How ClickStack and Odigos eliminate observability gaps with zero-code eBPF instrumentation and full-fidelity distributed tracing at scale.
Learn how Gala migrated to the ClickHouse to improve analytics performance and cut costs
How Qonto uses ClickHouse Cloud to power observability at scale, replacing sampling and hour-capped queries with two-week query windows, 99.84% compression on high-cardinality data, and an AI incident companion built on the ClickHouse MCP...
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