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Posted to reviews@iotdb.apache.org by GitBox <gi...@apache.org> on 2020/03/02 07:19:14 UTC

[GitHub] [incubator-iotdb] liutaohua commented on issue #864: [IOTDB-527] Refactor series reader

liutaohua commented on issue #864: [IOTDB-527] Refactor series reader
URL: https://github.com/apache/incubator-iotdb/pull/864#issuecomment-593256514
 
 
   > About the Group by parallel, it seems that it will create new future task and invoke future.get() each time nextWithoutConstraint() is called. This way is like the first version's raw data query parallel that I implements. It will slower the query instead of speeding up.
   
   Thank you very much for your reminding. I will continue to study why is it slow

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