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Posted to notifications@iotdb.apache.org by "Jinrui Zhang (Jira)" <ji...@apache.org> on 2022/11/17 06:45:00 UTC

[jira] [Created] (IOTDB-4969) Distribution plan is not correct for Aggregation query with AlignByDevice

Jinrui Zhang created IOTDB-4969:
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             Summary: Distribution plan is not correct for Aggregation query with AlignByDevice 
                 Key: IOTDB-4969
                 URL: https://issues.apache.org/jira/browse/IOTDB-4969
             Project: Apache IoTDB
          Issue Type: Bug
            Reporter: Jinrui Zhang
            Assignee: Jinrui Zhang
         Attachments: image-2022-11-17-14-41-37-947.png, image-2022-11-17-14-44-18-254.png

If one device's data is distributed in more than one DataRegion. The aggregation query for this device is not correct due to wrong distribution Plan. See the wrong plan below.

!image-2022-11-17-14-41-37-947.png|width=615,height=391!

This plan will lead to wrong result as follow:

!image-2022-11-17-14-44-18-254.png|width=380,height=88!

 



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