Yes, that's true. And not even ClickHouse considers their MergeTree engine to be an LSM-tree (see https://github.com/ClickHouse/ClickHouse/blob/bfc0260f359a0c1

Yes, that's true. And not even ClickHouse considers their MergeTree engine to be an LSM-tree (see https://github.com/ClickHouse/ClickHouse/blob/bfc0260f359a0c11dc86b75f97f0ba256215e21a/docs/en/development/architecture.md?plain=1#L258 https://github.com/ClickHouse/ClickHouse/blob/bfc0260f359a0c...). That doesn't make it wrong, or a bad architecture. It still takes ideas from LSM-trees, and it has similarities. But it can't be called an LSM-tree.