Github user mallman commented on a diff in the pull request:
    --- Diff: 
    @@ -17,32 +17,26 @@
     package org.apache.spark.sql.execution.datasources
     import scala.collection.mutable
    -import org.apache.hadoop.conf.Configuration
     import org.apache.hadoop.fs._
    -import org.apache.hadoop.mapred.{FileInputFormat, JobConf}
    -import org.apache.spark.internal.Logging
     import org.apache.spark.sql.SparkSession
     import org.apache.spark.sql.types.StructType
    -import org.apache.spark.util.SerializableConfiguration
      * A [[FileCatalog]] that generates the list of files to process by 
recursively listing all the
      * files present in `paths`.
    + * @param rootPaths the list of root table paths to scan
      * @param parameters as set of options to control discovery
    - * @param paths a list of paths to scan
      * @param partitionSchema an optional partition schema that will be use to 
provide types for the
      *                        discovered partitions
     class ListingFileCatalog(
         sparkSession: SparkSession,
    -    override val paths: Seq[Path],
    --- End diff --
    In earlier versions of this PR, these paths were renamed to `rootPaths` to 
indicate that they were only the filesystem "roots" for this table—no 
partition directories. This restriction was relaxed in a later iteration of the 
PR to address a shortcoming of the new architecture.
    The name `paths` probably makes more sense now, but I'm reluctant to push 
any non-critical commits right now. The last rebase was a killer.

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