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Posted to issues@flink.apache.org by "Ruidong Li (JIRA)" <ji...@apache.org> on 2017/06/27 16:56:00 UTC

[jira] [Assigned] (FLINK-7014) Expose isDeterministic interface to ScalarFunction and TableFunction

     [ https://issues.apache.org/jira/browse/FLINK-7014?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ruidong Li reassigned FLINK-7014:
---------------------------------

    Assignee: Ruidong Li

> Expose isDeterministic interface to ScalarFunction and TableFunction
> --------------------------------------------------------------------
>
>                 Key: FLINK-7014
>                 URL: https://issues.apache.org/jira/browse/FLINK-7014
>             Project: Flink
>          Issue Type: Improvement
>          Components: Table API & SQL
>            Reporter: Ruidong Li
>            Assignee: Ruidong Li
>
> Currently, the `isDeterministic` method of implementations of `SqlFuntion` are always returning true, which cause inappropriate optimization in Calcite, such as taking user's stateful UDF as a pure functional procedure. 



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