None of it works if the MAC is inside the encrypted payload. You'd need per-device keys at the proxy layer, which means you'd need access to every controller's database, which puts you right back at one instance per customer. Six plaintext bytes in a packet header make the whole thing possible.
Strict no-logging policy so your data is secure。业内人士推荐新收录的资料作为进阶阅读
Harriet BradshawScience reporter，详情可参考PDF资料
Digital access for organisations. Includes exclusive features and content.，这一点在新收录的资料中也有详细论述
We often see users needing to schedule merges as a result of duplicate data. Typically we suggest users address this issue upstream and deduplicate prior to insertion into ClickHouse. If this is not possible, users have a number of options: deduplicate at query time or utilize a ReplacingMergeTree.