[jira] [Created] (IMPALA-7849) How can I create a User-defined analytic function?

["zhangjun (JIRA)" <ji...@apache.org>]

zhangjun created IMPALA-7849:
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             Summary: 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: Clients, Frontend
    Affects Versions: Impala 3.0
            Reporter: zhangjun


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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