jjz921024 commented on PR #2402:
URL: https://github.com/apache/kvrocks/pull/2402#issuecomment-2228640244
> @ jjz921024 Please let me know if I'm wrong. If the data structure
contains at least 1 key that can be expired, we set a special bit to true and
later check it.
Yes. Due to the expiration time is encoded in the field, the time complexity
of some commands changes from O(1) to O(n), such as `type` and `hlen`. If we
can check this flag before execution, then the some commands complexity will
remains the same when
this feature is not used
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