org.apache.flink.table.plan.stats.SkewInfo.scala Maven / Gradle / Ivy

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/*
 * 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.flink.table.plan.stats

/**
  * The class contains skewed information. The class is visible to users.
  * Key is skew column name. Value is skew values of the column.
  *
  * @param skewInfo skew info.
  */
case class SkewInfo(skewInfo: Map[String, Seq[AnyRef]])

/**
  * The class contains skewed information. The class is only used in internal, not visible to users.
  * Key is skew column index. Value is skew values of the column.
  *
  * @param skewInfo skew info.
  */
private[flink] case class SkewInfoInternal(skewInfo: Map[Int, Seq[AnyRef]])