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https://issues.apache.org/jira/browse/IOTDB-468?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17035973#comment-17035973
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Jialin Qiao commented on IOTDB-468:
-----------------------------------
[https://github.com/apache/incubator-iotdb/pull/796]
> Seperate AlignByDevicePlan from QueryPlan
> -----------------------------------------
>
> Key: IOTDB-468
> URL: https://issues.apache.org/jira/browse/IOTDB-468
> Project: Apache IoTDB
> Issue Type: Improvement
> Reporter: XiangweiWei
> Assignee: XiangweiWei
> Priority: Major
> Fix For: master branch
>
>
> The AlignByDevice query ( which is called groupByDevice before ) and general
> query aligning by time are both storaged in QueryPlan now. However, they
> invoke different query process bascially, so it's necessary to restructure
> the QueryPlan and seperate the AlignByDeviceQuery from it.
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