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Posted to issues-all@impala.apache.org by "zhangjun (JIRA)" <ji...@apache.org> on 2018/11/14 09:25:00 UTC
[jira] [Updated] (IMPALA-7849) How can I create a User-defined
analytic function?
[ https://issues.apache.org/jira/browse/IMPALA-7849?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
zhangjun updated IMPALA-7849:
-----------------------------
Labels: User-defined analytic function (was: )
Component/s: (was: Clients)
> How can I create a User-defined analytic function?
> --------------------------------------------------
>
> Key: IMPALA-7849
> URL: https://issues.apache.org/jira/browse/IMPALA-7849
> Project: IMPALA
> Issue Type: Improvement
> Components: Frontend
> Affects Versions: Impala 3.0
> Reporter: zhangjun
> Priority: Major
> Labels: User-defined, analytic, function
>
> I can create a UDAF with the "create aggregate function ....", but when I use this aggregate function for the analysis function, such as sql : select hour,my_udaf(id) over (partition by hour) from mytable ,it reports the following error.
> ERROR: AnalysisException: Aggregate function 'my_udaf(id)' not supported with OVER clause.
> How can I create the analytic function? Is this an imperfect function, or is it not designed to provide this function for some reason?
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