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From sameeragarwal <>
Subject [GitHub] spark pull request #13161: [SPARK-14851] [Core] Support radix sort with null...
Date Fri, 10 Jun 2016 17:17:57 GMT
Github user sameeragarwal commented on a diff in the pull request:
    --- Diff: core/src/main/java/org/apache/spark/util/collection/unsafe/sort/
    @@ -93,6 +94,14 @@ public int compare(RecordPointerAndKeyPrefix r1, RecordPointerAndKeyPrefix
r2) {
       private int pos = 0;
    +   * If sorting with radix sort, specifies the starting position in the sort buffer where
    +   * with non-null prefixes are kept. Positions [0..nullPos) will contain null-prefixed
    +   * and positions [nullPos..pos) non-null prefixed records. This lets us avoid radix
    +   * over null values.
    +   */
    +  private int nullPos = 0;
    --- End diff --
    minor nit: would something `nullBoundary` or `nullBoundaryPos` better imply the semantics?

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