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From viirya <>
Subject [GitHub] spark pull request #16371: [SPARK-18932][SQL] Support partial aggregation fo...
Date Wed, 21 Dec 2016 07:43:43 GMT
Github user viirya commented on a diff in the pull request:
    --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/aggregate/Percentile.scala
    @@ -33,10 +33,9 @@ import org.apache.spark.util.collection.OpenHashMap
      * The Percentile aggregate function returns the exact percentile(s) of numeric column
`expr` at
      * the given percentage(s) with value range in [0.0, 1.0].
    - * The operator is bound to the slower sort based aggregation path because the number
of elements
    --- End diff --
    `TypedImperativeAggregate` is't bound to sort based aggregation. `ObjectHashAggregateExec`
supports `TypedImperativeAggregate` in hash based aggregation now.

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