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https://issues.apache.org/jira/browse/IOTDB-298?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jialin Qiao closed IOTDB-298.
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Fix Version/s: 0.10.0-SNAPSHOT
Resolution: Fixed
> Last time-value query
> ---------------------
>
> Key: IOTDB-298
> URL: https://issues.apache.org/jira/browse/IOTDB-298
> Project: Apache IoTDB
> Issue Type: New Feature
> Reporter: Jialin Qiao
> Assignee: Shao Wei
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.10.0-SNAPSHOT
>
> Time Spent: 2h
> Remaining Estimate: 0h
>
> We have two aggregators:
> last_value -> return the value of the last data point
> max_time -> return the time of the last data point
> However, we do not have an aggregator that returns the last time-value pair.
> This is very antihuman in a time-series database :(:(:(
>
> I suggest adding a new last query:
>
> last s1 from root.sg1.d1, root.sg1.d2 or other similar grammar.
>
> The Result should be in the following format:
>
> Path, Time, Value
> root.sg1.d1.s1, 100, 100
> root.sg1.d2.s1, 10, 10
>
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