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From "Ruidong Li (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FLINK-7014) Expose isDeterministic interface to ScalarFunction and TableFunction
Date Tue, 27 Jun 2017 12:45:00 GMT
Ruidong Li created FLINK-7014:
---------------------------------

             Summary: 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


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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