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https://issues.apache.org/jira/browse/IOTDB-418?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17014809#comment-17014809
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Jialin Qiao commented on IOTDB-418:
-----------------------------------

[https://github.com/apache/incubator-iotdb/pull/713]

> Refactor query process in IoTDB
> -------------------------------
>
>                 Key: IOTDB-418
>                 URL: https://issues.apache.org/jira/browse/IOTDB-418
>             Project: Apache IoTDB
>          Issue Type: Improvement
>            Reporter: Jialin Qiao
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> Currently, readers in IoTDB are classified into sequence reader && unsequence 
> reader && series reader. 
> It's better to combine them together to get benefit from managing all 
> resources in one reader. 
> Therefore, raw data queries, aggregations, and group by query need to be 
> improved.



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