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Posted to issues@calcite.apache.org by "yuemeng (JIRA)" <ji...@apache.org> on 2017/06/09 01:41:18 UTC

[jira] [Updated] (CALCITE-1833) SqlAggFunction need new constructor to set paramTypes to allow user-defined aggregate function to have more than one parameter

     [ https://issues.apache.org/jira/browse/CALCITE-1833?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

yuemeng updated CALCITE-1833:
-----------------------------
    Summary: SqlAggFunction need new constructor to set paramTypes to allow user-defined aggregate function to have more than one parameter  (was: SqlAggFunction need new constructor to set paramTypes not be null for support multiple parameters for udaf)

> SqlAggFunction need new constructor to set paramTypes to allow user-defined aggregate function to have more than one parameter
> ------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: CALCITE-1833
>                 URL: https://issues.apache.org/jira/browse/CALCITE-1833
>             Project: Calcite
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 1.12.0
>            Reporter: yuemeng
>            Assignee: Julian Hyde
>            Priority: Blocker
>
> If a class(A) implement interface of AggregateFunction,that instance of class will be transformed to instance of  SqlUserDefinedAggFunction by call toOp method in CalciteCatalogReader.
> when construct the SqlUserDefinedAggFunction  instance will set paramTypes to null for super class sqlFunction indirectly.
> The problem is:
> we will  get SqlUserDefinedAggFunction paramTypes to sql validatefilte,but it will be filter nothing 



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