Github user zhzhan commented on a diff in the pull request:
https://github.com/apache/spark/pull/8547#discussion_r38391122
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/sources/interfaces.scala ---
@@ -436,7 +436,8 @@ abstract class HadoopFsRelation
private[sql](maybePartitionSpec: Option[Partitio
Try(fs.listStatus(qualified)).getOrElse(Array.empty)
}.filterNot { status =>
val name = status.getPath.getName
- name.toLowerCase == "_temporary" || name.startsWith(".")
+ // Is it safe to replace "_temporary" to "_"?
--- End diff --
Thanks for the comments. It seems there is a lot of corner cases to be
covered from the test case. for example 1st is valid, but 2nd is not:
1st:
"hdfs://host:9000/path/_temporary",
"hdfs://host:9000/path/a=10/b=20",
"hdfs://host:9000/path/_temporary/path",
2nd:
"hdfs://host:9000/path/_temporary",
"hdfs://host:9000/path/a=10/b=20",
"hdfs://host:9000/path/path1",
Adding an PartitionValues.empty does not solve the problem. Will close this
PR, and investigate other approaches.
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