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 * 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
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package org.apache.spark.sql.comet.shims

import org.apache.spark.sql.connector.read.InputPartition
import org.apache.spark.sql.execution.datasources.v2.BatchScanExec

trait ShimCometBatchScanExec {
  protected def wrappedScan: BatchScanExec

  // Spark 3.4 and 3.5 expose `partitions` as Seq[Seq[InputPartition]] (same as 4.0/4.1);
  // 4.2 changed it to Seq[Option[InputPartition]]. The concrete subclass overrides
  // `partitions` to delegate to `shimPartitions`, which carries the version-specific
  // element type.
  @transient lazy val shimPartitions: Seq[Seq[InputPartition]] = wrappedScan.partitions
}
