Github user lw-lin commented on a diff in the pull request:
https://github.com/apache/spark/pull/13575#discussion_r66467095
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetFileFormat.scala
---
@@ -488,7 +488,12 @@ private[sql] class ParquetOutputWriterFactory(
// Custom ParquetOutputFormat that disable use of committer and writes
to the given path
val outputFormat = new ParquetOutputFormat[InternalRow]() {
override def getOutputCommitter(c: TaskAttemptContext):
OutputCommitter = { null }
- override def getDefaultWorkFile(c: TaskAttemptContext, ext: String):
Path = { new Path(path) }
+ override def getDefaultWorkFile(c: TaskAttemptContext, ext: String):
Path = {
+ // It has the `.parquet` extension at the end because
(de)compression tools
+ // such as gunzip would not be able to decompress this as the
compression
+ // is not applied on this whole file but on each "page" in Parquet
format.
+ new Path(s"$path$ext")
+ }
--- End diff --
This patch appends an extension to the assigned `path`; new `path` would be
like `some_path.gz.parquet`.
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