[jira] [Assigned] (IOTDB-2091) Support aggregation with UDF nested query

["liruizhi (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IOTDB-2091?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

liruizhi reassigned IOTDB-2091:
-------------------------------

    Assignee: liruizhi  (was: Eric Pai)

> Support aggregation with UDF nested query
> -----------------------------------------
>
>                 Key: IOTDB-2091
>                 URL: https://issues.apache.org/jira/browse/IOTDB-2091
>             Project: Apache IoTDB
>          Issue Type: New Feature
>          Components: Core/Engine
>            Reporter: Eric Pai
>            Assignee: liruizhi
>            Priority: Major
>              Labels: features
>             Fix For: master branch
>
>
> Currently we have already support udf nested query , i.e. f(g(a)). But we can't query like this
>  * select sum(s1) + sum(s2), -sum(s3), sum(s4) + 1, sin(cos(sum(s5))) from root.sg.d1
>  * select sum(s1) + sum(s2), -sum(s3), sum(s4) + 1, sin(cos(sum(s5))) from root.sg.* GROUP BY LEVEL=1
>  * select sum(s1) + sum(s2), -sum(s3), sum(s4) + 1, sin(cos(sum(s5))) from root.sg.d1 GROUP BY([0, 9000), 1s);
>  * select sum(s1) + sum(s2), -sum(s3), sum(s4) + 1, sin(cos(sum(s5))) from root.sg.d1 GROUP BY([0, 9000), 1s) FILL(previous);
> This task's object is to implement the above quries with reusing existing calculation logics.



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