Chengcheng Jin created SPARK-54566:
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             Summary: Enhance SparkSql FileSourceScanExec for easy integration
                 Key: SPARK-54566
                 URL: https://issues.apache.org/jira/browse/SPARK-54566
             Project: Spark
          Issue Type: Improvement
          Components: Java API
    Affects Versions: 4.2
            Reporter: Chengcheng Jin
             Fix For: 4.2


As this issue [https://github.com/apache/incubator-gluten/issues/11216] 
described in Gluten, this file 
[https://github.com/apache/incubator-gluten/blob/main/shims/spark40/src/main/scala/org/apache/spark/sql/execution/AbstractFileSourceScanExec.scala]
 is mostly a copy from FileSourceScanExec.

Because the source class provides inputRDD but the columnar engine only needs 
the finalPartitions, and the case class should not be inherited.



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