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Posted to notifications@iotdb.apache.org by "SailingR (Jira)" <ji...@apache.org> on 2020/04/21 06:53:00 UTC

[jira] [Commented] (IOTDB-528) [GRAFANA] Implicitly do GROUP BY to avoid sending to many data over the wire

    [ https://issues.apache.org/jira/browse/IOTDB-528?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17088355#comment-17088355 ] 

SailingR commented on IOTDB-528:
--------------------------------

https://github.com/apache/incubator-iotdb/pull/1073

> [GRAFANA] Implicitly do GROUP BY to avoid sending to many data over the wire
> ----------------------------------------------------------------------------
>
>                 Key: IOTDB-528
>                 URL: https://issues.apache.org/jira/browse/IOTDB-528
>             Project: Apache IoTDB
>          Issue Type: Improvement
>          Components: Connectors/Grafana
>            Reporter: Julian Feinauer
>            Priority: Major
>              Labels: performance, pull-request-available
>         Attachments: autozoom.mov
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> When using itodb-grafana integration through SimpleJson it seems like it does not do any aggregation at all.
> In situations where one selects a big time range it should do some subsampling with group by to limit the number of rows being sent.



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