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https://issues.apache.org/jira/browse/IOTDB-2252?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yuan Tian reassigned IOTDB-2252:
--------------------------------

                Sprint: 2022-1-Tian
     Affects Version/s: master branch
              Assignee: Yuan Tian
    Remaining Estimate: 8h
     Original Estimate: 8h

> There are no response when select * from device by jdbc.
> --------------------------------------------------------
>
>                 Key: IOTDB-2252
>                 URL: https://issues.apache.org/jira/browse/IOTDB-2252
>             Project: Apache IoTDB
>          Issue Type: Bug
>          Components: Core/Query
>    Affects Versions: master branch, 0.12.4
>            Reporter: 张洪胤
>            Assignee: Yuan Tian
>            Priority: Major
>   Original Estimate: 8h
>  Remaining Estimate: 8h
>
> Data config:
> There are 10 devices in 5 storage groups, each has 30 sensors. And there are 
> 1,000,000 timeseries per device.
> When use jdbc connection to query(sql: select * from root.test.g_0.d_0), 
> there will be no response after a short time.



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