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ClickHouse Newsletter

Hello, and welcome to the March 2026 ClickHouse newsletter!

This month, we have an overview of Geospatial, the launch of chDB 4, how Hookdeck made payload search 60 times faster, The Agentic Data Stack, and more!

 

 

Featured community member

This month's featured community member is Jamie Herre, Sr. Director of Engineering at Cloudflare.

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Jamie leads engineering on Cloudflare's analytics infrastructure - a system that processes over 1.61 quadrillion events every day across more than 300 global data centers, built on ClickHouse.

At the ClickHouse meetup in August 2025, Jamie shared how his team designed for both explosive growth and catastrophic failure simultaneously. In one live demonstration, a single query scanned 96 trillion events in under 2 seconds - while a simulated North American outage caused European clusters to silently absorb the load without missing a beat.

➡️ Connect with Jamie on LinkedIn

 

Upcoming events

Global virtual events

Virtual training

Events in AMER

Events in EMEA

Events in APAC

 

26.2 release

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My favorite feature in the recent ClickHouse 26.2 release is time-based block flushing for streaming data. This lets you batch inserts by time interval rather than row count, which is useful for low-throughput feeds like Wikimedia recent changes.

The release also brings production-ready text index and QBit data types, 3.2x faster RIGHT/FULL JOINs, and embedded ClickStack for in-product observability.

➡️ Read the release post

 

Building towards an enterprise-grade Postgres service in ClickHouse Cloud

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Sai Srirampur introduces the enterprise-grade Postgres service, coming soon to ClickHouse Cloud, bringing cross-AZ high availability, point-in-time recovery, automated backups, and failover-safe CDC slots for ClickHouse integration.

In other Postgres news, Kaushik Iska introduces pg_stat_ch, an open-source Postgres extension that streams query metrics directly into ClickHouse for latency analysis and error tracking without impacting production performance.

➡️ Read the blog post

 

Announcing chDB 4: Write Pandas, Run ClickHouse, Now on Hex

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Ryadh Dahimene and Auxten Wang introduce chDB 4, which adds a Pandas-compatible DataStore API that executes on ClickHouse's engine under the hood.

Operations run lazily as an optimized pipeline, with automatic routing between ClickHouse and Pandas engines, and it's now available natively in Hex notebooks.

➡️ Read the release post