vinodkc commented on a change in pull request #32411:
URL: https://github.com/apache/spark/pull/32411#discussion_r625564743
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/command/DataWritingCommand.scala
##########
@@ -96,4 +98,20 @@ object DataWritingCommand {
sparkContext.getLocalProperty(SQLExecution.EXECUTION_ID_KEY),
metrics.values.toSeq)
}
+
+ def assertEmptyRootPath(locationUri: Option[URI], configuration:
Configuration) {
+ locationUri.fold() { tablePathUri: URI =>
+ val tablePath = tablePathUri.toString
+ val filePath = new org.apache.hadoop.fs.Path(tablePath)
+ val fs = filePath.getFileSystem(configuration)
+ if(fs.exists(filePath)) {
+ val cs = fs.getContentSummary(filePath)
Review comment:
As fs.getContentSummary() is a costly operation compared to
fs.listStatus(), now I used fs.listStatus(...).listStatus !=0
Also added new legacy configuration settings and updated the SQL migration
guide
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