What is the advantage of this rather than using a postgres plugin for clickhouse and S3 storage of the data to build a kind of data-warehouse, which wouldn't require the bloat of Kafka?
In my experience, at scale (~2-3k QPS), you'd run into a bottleneck ingesting so many events without Kafka. If you don't have this level of throughput, you could totally do the above and still get the advantages of ClickHouse's columnar datastore.
