Github user QiangCai commented on a diff in the pull request: https://github.com/apache/carbondata/pull/2971#discussion_r245198367 --- Diff: integration/spark-common/src/main/scala/org/apache/spark/DataSkewRangePartitioner.scala --- @@ -0,0 +1,319 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package org.apache.spark + +import java.io.{IOException, ObjectInputStream, ObjectOutputStream} + +import scala.collection.mutable +import scala.collection.mutable.ArrayBuffer +import scala.reflect.ClassTag +import scala.util.hashing.byteswap32 + +import org.apache.spark.rdd.{PartitionPruningRDD, RDD} +import org.apache.spark.serializer.JavaSerializer +import org.apache.spark.util.{CollectionsUtils, Utils} + +/** + * support data skew scenario + * copy from spark: RangePartiitoner + */ +class DataSkewRangePartitioner[K: Ordering : ClassTag, V]( --- End diff -- ok
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