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From fhueske <...@git.apache.org>
Subject [GitHub] flink pull request #4105: [FLINK-6888] [table] Can not determine TypeInforma...
Date Wed, 28 Jun 2017 16:20:20 GMT
Github user fhueske commented on a diff in the pull request:

    --- Diff: flink-libraries/flink-table/src/main/scala/org/apache/flink/table/functions/utils/UserDefinedFunctionUtils.scala
    @@ -320,12 +348,20 @@ object UserDefinedFunctionUtils {
         } else if(extractedType != null) {
         } else {
    -      TypeExtractor
    +      try {
    +        TypeExtractor
    --- End diff --
    The fallback type extraction of the accumulator type is different now. Before, we created
an accumulator instance and called `TypeInformation.of(Any)`. Now, we try to extract it from
the generics of the UDAGG.
    @twalthr, does this method work as reliable as `TypeInformation.of(Any)`?

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