How We Log LLM Requests at Sub-50ms Latency Using ClickHouse
We were logging 50,000 LLM requests per day to PostgreSQL. Query latency was fine. At 400,000 requests, cost aggregation queries started taking 3 seco…
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ClickHouse Native JSON Support in 2026: A PR-by-PR Analysis
TL;DR ClickHouse has full native JSON support, and has since v25.3. The JSON type stores each path as a separate columnar subcolumn with native type p…
greatCircleDistance in ClickHouse: Avoiding Full Table Scans
When working with location data, one problem shows up almost immediately: “How do I calculate the distance between two coordinates stored in my databa…
ClickHouse и работа с ним на Go
1. Вступление: какую проблему решает ClickHouse ClickHouse нужен там, где обычная OLTP-база начинает мешать аналитике: большие объемы событий, логов, …
Debugging a Broken Metrics Pipeline: What Actually Went Wrong
Part 4 of a series on building a metrics pipeline into ClickHouse Read Part 3: Understanding Vector Transforms When Things Still Don’t Work At this po…
From Pipelines to Transforms: Making Vector Work with ClickHouse
Part 3 of a series on building a metrics pipeline into ClickHouse Read Part 2: Understanding Vector Pipelines Where Things Got Real By this point, the…