Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/17858#discussion_r115879727
--- Diff:
sql/hive/src/main/scala/org/apache/spark/sql/hive/execution/InsertIntoHiveTable.scala
---
@@ -97,12 +97,24 @@ case class InsertIntoHiveTable(
val inputPathUri: URI = inputPath.toUri
val inputPathName: String = inputPathUri.getPath
val fs: FileSystem = inputPath.getFileSystem(hadoopConf)
- val stagingPathName: String =
+ var stagingPathName: String =
if (inputPathName.indexOf(stagingDir) == -1) {
new Path(inputPathName, stagingDir).toString
} else {
inputPathName.substring(0, inputPathName.indexOf(stagingDir) +
stagingDir.length)
}
+
+ // SPARK-20594: This is a walk-around fix to resolve a Hive bug. Hive
requires that the
+ // staging directory needs to avoid being deleted when users set
hive.exec.stagingdir
+ // under the table directory.
+ if (FileUtils.isSubDir(new Path(stagingPathName), inputPath, fs)
+ &&
!stagingPathName.stripPrefix(inputPathName).stripPrefix(File.separator).startsWith("."))
{
--- End diff --
Nit: Please move `&&` in line 110
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