[jira] [Created] (CALCITE-1882) Can't obtain the user defined aggregate function such as sum,avg by calcite

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

yuemeng created CALCITE-1882:
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             Summary: Can't obtain the user defined aggregate function such as sum,avg by calcite
                 Key: CALCITE-1882
                 URL: https://issues.apache.org/jira/browse/CALCITE-1882
             Project: Calcite
          Issue Type: Bug
    Affects Versions: 1.12.0
            Reporter: yuemeng
            Assignee: yuemeng
            Priority: Critical


If we want to register a sum or avg aggregate function to deal with different data type such as sum(double) ,we implement a SqlUserDefinedAggFunction and register with name sum,but when we execute a sql like:
{code}
select id,sum(payment) from table test group by id
{/code}
in fact,it always give the SqlSumAggFunction function which buidin by calcite,never find the exactly function which we register by ourself.



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