How to store entire Kafka message payload as a single string column in ClickHouse?

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I'm trying to store the entire Kafka message including payload, key, and headers as raw data in ClickHouse.
I want to preserve all the original data without any parsing or transformation for audit and flexibility purposes.

so the question is..

• Is it possible to store the entire Kafka message payload and message Key as a single String or JSON column?
• What's the current status of header support?
  • I found issue Insert data from message header (or key) to clickhouse #198 discussing header support, but it seems unresolved