Github user yhuai commented on a diff in the pull request:
https://github.com/apache/spark/pull/12856#discussion_r61836088
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/fileSourceInterfaces.scala
---
@@ -443,6 +453,22 @@ class HDFSFileCatalog(
}
}
+ /** List of files to consider when there is not inferred partitioning
scheme */
+ private def unpartitionedDataFiles(): Seq[FileStatus] = {
+ // For each of the input paths, get the list of files inside them
+ paths.flatMap { path =>
+ // Make the path qualified (consistent with listLeafFiles and
listLeafFilesInParallel).
+ val fs = path.getFileSystem(hadoopConf)
+ val qualifiedPath = path.makeQualified(fs.getUri,
fs.getWorkingDirectory)
+
+ // If it is a directory (i.e. exists in leafDirToChildrenFiles),
return its children files
+ // Or if it is a file (i.e. exists in leafFiles), return the path
itself
+ leafDirToChildrenFiles.get(qualifiedPath).orElse {
--- End diff --
nvm. This logic is correct.
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