[jira] [Created] (IOTDB-494) Avoid OOM in reading overlapped chunks

[Jialin Qiao (Jira)]

Jialin Qiao created IOTDB-494:
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             Summary: Avoid OOM in reading overlapped chunks
                 Key: IOTDB-494
                 URL: https://issues.apache.org/jira/browse/IOTDB-494
             Project: Apache IoTDB
          Issue Type: Improvement
          Components: Core/Engine
            Reporter: Jialin Qiao


If one chunk directly overlaps with too many chunks, we will read all these 
chunk in memory, which may cause OOM. Try to use an external sort to solve this 
problem.



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