рычаги?
https://clickhouse.tech/docs/en/operations/table_engines/mergetree/#table_engine-mergetree-ttl (Table TTL)
https://github.com/ClickHouse/ClickHouse/blob/master/CHANGELOG.md MergeTree now has an additional option ttl_only_drop_parts (disabled by default) to avoid partial pruning of parts, so that they dropped completely when all the rows in a part are expired. #6191 (Sergi Vladykin)
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