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https://issues.apache.org/jira/browse/IOTDB-622?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17093467#comment-17093467
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Xiangdong Huang commented on IOTDB-622:
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Hi,
I also think we need to add a new feature to aggregate the values of all
time-series together.
However, as we have released 0.8.* and 0.9.*, for downward compatibility, it is
better to add new keywords to define this feature.
Besides, if we have such a feature, it is better to support calculating
aggregation results no matter whether "group by [time range]" is defined.
> count all records of the whole database
> ---------------------------------------
>
> Key: IOTDB-622
> URL: https://issues.apache.org/jira/browse/IOTDB-622
> Project: Apache IoTDB
> Issue Type: Improvement
> Components: Core/Engine
> Reporter: WangChao
> Priority: Trivial
>
> Now the count function only count the number of every timeseries, it's useful
> to count the total record of the specific path.
>
> like:
>
> *_select count(*) from root.ln._** should return the total number of the
> records in storage group root.ln, but now it returns the number of each
> timeseries which is in root.ln.
>
> Please leave your opinion.
>
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