org.apache.spark.sql.hudi.logical.TimeTravelRelation.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.spark.sql.catalyst.plans.logical

import org.apache.spark.sql.catalyst.expressions.{Attribute, Expression}

case class TimeTravelRelation(relation: LogicalPlan,
                              timestamp: Option[Expression],
                              version: Option[String]) extends UnaryNode with HoodieUnaryLikeSham[LogicalPlan] {

  override lazy val resolved: Boolean = false

  override def output: Seq[Attribute] = Nil
  override def child: LogicalPlan = relation

  override protected def withNewChildInternal(newChild: LogicalPlan): LogicalPlan =
    copy(relation = newChild)
}