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From fhueske <...@git.apache.org>
Subject [GitHub] flink pull request: [FLINK-3665] Implemented sort orders support i...
Date Mon, 18 Apr 2016 15:00:34 GMT
Github user fhueske commented on a diff in the pull request:

    --- Diff: flink-optimizer/src/main/java/org/apache/flink/optimizer/dag/PartitionNode.java
    @@ -90,13 +90,20 @@ public SemanticProperties getSemanticProperties() {
     		private final PartitionMethod pMethod;
     		private final Partitioner<?> customPartitioner;
     		private final DataDistribution distribution;
    +		private final Ordering ordering;
     		public PartitionDescriptor(PartitionMethod pMethod, FieldSet pKeys, Partitioner<?>
customPartitioner, DataDistribution distribution) {
    +			this(pMethod, pKeys, null, customPartitioner, distribution);
    +		}
    +		public PartitionDescriptor(PartitionMethod pMethod, FieldSet pKeys, Ordering ordering,
    +				customPartitioner, DataDistribution distribution) {
     			this.pMethod = pMethod;
     			this.customPartitioner = customPartitioner;
     			this.distribution = distribution;
    +			this.ordering = ordering;
    --- End diff --
    Can you add a check that the `ordering` is valid (number of orders == number of keys.
Order keys == keys)?

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