If you want to seem some code where it is used I ran across it when looking at the Plausible Analytics repo: https://github.com/plausible/analytics/search?q=cl

If you want to seem some code where it is used I ran across it when looking at the Plausible Analytics repo: https://github.com/plausible/analytics/search?q=clickhouse https://github.com/plausible/analytics/search?q=clickhouse They use it to store analytics data.