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From sunjincheng121 <...@git.apache.org>
Subject [GitHub] flink pull request #2653: [FLINK-4469] [table] Add support for user defined ...
Date Wed, 23 Nov 2016 03:37:48 GMT
Github user sunjincheng121 commented on a diff in the pull request:

    https://github.com/apache/flink/pull/2653#discussion_r89252908
  
    --- Diff: flink-libraries/flink-table/src/main/scala/org/apache/flink/api/table/functions/utils/UserDefinedFunctionUtils.scala
---
    @@ -135,6 +138,32 @@ object UserDefinedFunctionUtils {
       }
     
       /**
    +    * Returns eval method matching the given signature of [[TypeInformation]].
    +    */
    +  def getEvalMethod(
    +    function: EvaluableFunction,
    --- End diff --
    
    hi @fhueske When we declare the ScalarFunction and TableFunction as follows: trait ScalarFunction,
trait TableFunction [T], it will become very useful. The current version is optional.


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