https://prashantb.dev/tags/clickhouse/ Recent content in clickhouse on Blogs by Prashant B. https://pixabay.com/get/g61a93d93efd9be3f89af90a3a3ab09f5038e2fc845bfef9652e193a7f23b33417194e775640fe162bc43a33a0b3e36b5e6745f714d647cb155079bc5f89883e9ef93b7db818730f01c5b6a29ebb77cd9_640.png https://pixabay.com/get/g61a93d93efd9be3f89af90a3a3ab09f5038e2fc845bfef9652e193a7f23b33417194e775640fe162bc43a33a0b3e36b5e6745f714d647cb155079bc5f89883e9ef93b7db818730f01c5b6a29ebb77cd9_640.png Hugo -- 0.118.2 en Wed, 27 May 2026 10:00:00 +0530 https://prashantb.dev/posts/clickhouse-in-anger/ Wed, 27 May 2026 10:00:00 +0530 https://prashantb.dev/posts/clickhouse-in-anger/ We needed a data warehouse we actually controlled. Not a managed SaaS, something we could wire up ourselves: operational data from Postgres, event streams from Kafka, analytical queries that had to be fast. ClickHouse was the answer. Here’s what I actually ran into building it. Postgres to ClickHouse via ClickPipes CDC The requirement was simple: don’t let ClickHouse go stale. The application was still writing to Postgres constantly, so a one-time dump was useless.