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https://issues.apache.org/jira/browse/IOTDB-528?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17094445#comment-17094445
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Jialin Qiao commented on IOTDB-528:
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Hi, [~jfeinauer] , It's this PR
[https://github.com/apache/incubator-iotdb/pull/1073]
that fix this issue. I don't know why this is not linked here..
> [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
> Fix For: 0.10.0-SNAPSHOT
>
> 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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