ClickHouse

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!

Inside this issue

Featured community member

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

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

v26.3 Community Call - Mar 26, 2026
CDC ClickPipes: 데이터베이스를 ClickHouse로 복제하는 가장 빠른 방법 - Apr 1, 2026
Under-the-Hood: ClickHouse Incremental Materialized Views and Dictionaries - Apr 9, 2026
Combining Postgres & ClickHouse to Build a Unified Data Stack - Apr 22, 2026

Virtual training

Observability with ClickStack: Level 3 - Mar 25, 2026
Observability with ClickStack: Level 2 - Apr 7, 2026
Query Optimization with ClickHouse Workshop - Apr 7, 2026

Events in AMER

SRECon - Seattle - Mar 25, 2026
Bay Area Iceberg Meetup: RSA Edition - San Francisco - Mar 24, 2026
Seattle Observability Meetup - Seattle - Mar 26, 2026
Fireside Chat in San Francisco: Column Stores & the Evolution of Observability - San Francisco - Mar 31, 2026
Seattle Startup Summit - Seattle - Apr 1, 2026
Iceberg Summit - San Francisco - Apr 8, 2026
AI Demo Night - San Francisco - Apr 9, 2026
Google Cloud Next 2026 - Las Vegas - Apr 22, 2026
House Party, Google Cloud Next - Las Vegas - Apr 22, 2026
Open House user conference - San Francisco - May 26, 2026

Events in EMEA

ClickHouse Meetup Munich - Munich - Mar 19, 2026
KubeCon EU - Amsterdam, 23-26 March - Hall 2 stand 261
DW&BI - Utrecht, 24 March
ClickHouse x Apache Kafka x AWS - Milan - Mar 26, 2026
ClickHouse x AWS x DoiT - Gaming and Betting AI Workshop - Malta - March 26, 2026
Lunch & Learn with ClickHouse - Amsterdam - Mar 31, 2026
AWS Summit Paris - Paris, 1 April - Level 1 (nr. G3)
Amsterdam In-Person Training: Observability with ClickStack - Amsterdam - Apr 8, 2026
CTO Networking Event with ClickHouse, AWS, Confluent & DoiT - Vienna - Apr 9, 2026
Scaling the Enterprise AI Operating Model - Berlin - Apr 14, 2026
Paris In-Person Training: Real-time Analytics with ClickHouse - Paris - Apr 15, 2026
ClickHouse Meetup in Dublin - Dublin - Apr 16, 2026
GrafanaCON - Barcelona - Apr 20-22, 2026
Barcelona In-Person Training: Real-time Analytics with ClickHouse - Barcelona - Apr 20, 2026
AWS Summit London - London - Apr 22 - Booth G18
Rise of AI Berlin - Berlin - May 5-6, 2026
AWS Summit Tel Aviv - Tel Aviv - May 6, 2026
Data Innovation Summit - Stockholm - May 6-8, 2026
Gartner Data & Analytics - London - May 11-13, 2026
Revolution Banking - Madrid - May 12, 2026
Platforma 2026 - Tel Aviv - May 20, 2026
AWS Summit Hamburg - Hamburg - May 20, 2026
London 2-day In-Person Training: Real-time Analytics with ClickHouse - London - May 19, 2026
ClickHouse Meetup London - London - May 19, 2026
Google Summit Madrid - Madrid - May 28, 2026

Events in APAC

Python Asia 2026 - Manila - Mar 21-22, 2026
Postgres + ClickHouse: Building a Real-Time Open-Source Data Stack - Auckland - Mar 23, 2026
DataEngBytes Auckland - Mar 24, 2026
Wellington Data Eng Meetup - Wellington - Mar 25, 2026
ClickHouse Shenzhen Meetup - Shenzhen - Mar 28, 2026
Korean Webinar: CDC ClickPipes: 데이터베이스를 ClickHouse로 복제하는 가장 빠른 방법 - Apr 1, 2026
Data Streaming World Mumbai - Apr 13, 2026
Data Streaming World Bangalore - Apr 16, 2026
Taipei Open Source Meetup - Taipei - Apr 16, 2026
Bangalore Meetup with Alexey Milovidov - Apr 18, 2026
Data Streaming World Jakarta - Apr 21, 2026
APJ Webinar: Combining Postgres & ClickHouse to Build a Unified Data Stack - Apr 22, 2026
Ho Chi Minh In-Person Training: Real-time Analytics with ClickHouse - Ho Chi Minh - Apr 22, 2026
AWS Summit Bengaluru - Apr 22-23, 2026

26.2 release

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

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

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.