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From marmbrus <>
Subject [GitHub] spark pull request: [SPARK-11625][SQL] add java test for typed agg...
Date Thu, 12 Nov 2015 23:45:35 GMT
Github user marmbrus commented on a diff in the pull request:
    --- Diff: sql/core/src/main/scala/org/apache/spark/sql/expressions/Aggregator.scala ---
    @@ -47,7 +47,7 @@ import org.apache.spark.sql.{Dataset, DataFrame, TypedColumn}
      * @tparam B The type of the intermediate value of the reduction.
      * @tparam C The type of the final result.
    -abstract class Aggregator[-A, B, C] {
    +abstract class Aggregator[-A, B, C] extends Serializable {
    --- End diff --
    good idea

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