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I've operated petabyte-scale ClickHouse® clusters for 5 years
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I've operated petabyte-scale ClickHouse® clusters for 5 years

Hacker News·about 2 months ago
#4p5KxiBh
#tinybird#clickhouse#photo#englishlanguage

What I learned operating ClickHouse at scale: the wins, the failures, and the lessons that only come from production experience.

15s
What's new in pg_clickhouse v0.10.0: Subqueries, TPC-H Speedups, C Driver, and Aggregates | ClickHouse
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What's new in pg_clickhouse v0.10.0: Subqueries, TPC-H Speedups, C Driver, and Aggregates | ClickHouse

Hacker News·3 months ago
#gDv3jUfX
#clickhouse#null#down#query#foreign

Discover what's new in pg_clickhouse v0.10.0: 16 of 22 TPC-H queries now push down in full, plus a rebuilt C driver and broader aggregate support.

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Why we rewrote WAL-G for Postgres backups in Rust: Meet WAL-RUS | ClickHouse
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Why we rewrote WAL-G for Postgres backups in Rust: Meet WAL-RUS | ClickHouse

Hacker News·4 months ago
#Y25bRfqP
#clickhouse#memory#archival#postgres#making

How we built WAL-RUS, an open-source Rust-based Postgres backup tool that reduces virtual memory usage by over 70% compared to WAL-G while maintaining full compatibility.

15s
Ten years of ClickHouse in open source
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Ten years of ClickHouse in open source

Hacker News·4 months ago
#GwZh3zfV
#clickhouse#first#code#open#photo

ClickHouse was released in open source on Jun 15 2016, ten years ago. Since then, it became the most popular open source analytical database with more than 2000 contributors.

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Three Ways to Set Up CDC from Postgres to ClickHouse
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Three Ways to Set Up CDC from Postgres to ClickHouse

DEV Community: database·Hassan Munir·5 months ago
#e41wEuXQ
#dev#clickhouse#postgres#table#article

Postgres CDC into ClickHouse via Kafka + Debezium, MaterializedPostgreSQL, and ClickPipes — setup, schemas, monitoring SQL, and where each one breaks.

15s
Our billing pipeline was suddenly slow. The culprit was a hidden bottleneck in ClickHouse
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Our billing pipeline was suddenly slow. The culprit was a hidden bottleneck in ClickHouse

The Cloudflare Blog ·James Morrison·5 months ago
#mGoGzwVY
#parts#query#clickhouse#namespace#article

When a partitioning change to our petabyte-scale ClickHouse cluster caused critical billing jobs to stall, standard metrics showed no obvious errors.…

15s
ClickHouse JOINs Aren't Slow Anymore (You're Reading 2020's Docs)
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ClickHouse JOINs Aren't Slow Anymore (You're Reading 2020's Docs)

DEV Community·Aman Puri·6 months ago
#oLGkQF3l
#clickhouse#does#how#automatic#join

The 'avoid JOINs in ClickHouse' advice is four years and 50+ PRs out of date. Here's what actually shipped between 2022 and 2026.

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Building a Full-Stack Agentic AI Data Platform on ClickHouse: A Complete Architecture Guide
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Building a Full-Stack Agentic AI Data Platform on ClickHouse: A Complete Architecture Guide

DEV Community·RAKESH THERANI·6 months ago
#lig4gGgZ
#clickhouse#phase#why#table#join

From Dev.to - database: Building a Full-Stack Agentic AI Data Platform on ClickHouse: A Complete Architecture Guide

15s
ClickHouse Joins no longer suck: A look at the engine evolution from 2022–2026
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ClickHouse Joins no longer suck: A look at the engine evolution from 2022–2026

Reddit r/Database·u/FarRub2855·6 months ago
#v5wKETD8
#join#clickhouse#joins#hash#engine

Hi database folks, If you evaluated ClickHouse a few years ago, you were likely told to avoid **JOINs** at all costs. The standard industry advice was to denormalize everything into massive, flat tables. In 2020, that criticism was fair.…

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