LindaSummer commented on code in PR #2811:
URL: https://github.com/apache/kvrocks/pull/2811#discussion_r1977564664


##########
src/types/redis_tdigest.cc:
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@@ -161,6 +161,8 @@ rocksdb::Status TDigest::Add(engine::Context& ctx, const 
Slice& digest_name, con
 
   metadata.total_observations += inputs.size();
   metadata.total_weight += inputs.size();
+  metadata.maximum = std::max(metadata.maximum, 
*std::max_element(inputs.cbegin(), inputs.cend()));

Review Comment:
   Hi @mapleFU ,
   
   I agree on your view. 😊
   Frankly this probably just because I implement the `Merge` function ahead of 
`Add`. 😄
   
   So, I think move it to the `Add` function is reasonable. But we'd better 
remove the updating after Merge if we decide to maintain it in `Add`.
   
   Update it in two places may not be a good practice.
   
   Best Regards,
   Edward



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