Github user liancheng commented on a diff in the pull request:
https://github.com/apache/spark/pull/13120#discussion_r63686590
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/command/createDataSourceTables.scala
---
@@ -348,13 +349,23 @@ object CreateDataSourceTableUtils extends Logging {
className = provider,
options = options)
- def newSparkSQLSpecificMetastoreTable(): CatalogTable = {
+ def newSparkSQLSpecificMetastoreTable(relation: HadoopFsRelation):
CatalogTable = {
CatalogTable(
identifier = tableIdent,
tableType = tableType,
schema = Nil,
storage = CatalogStorageFormat(
- locationUri = None,
+ // We don't want Hive metastore to implicitly create a table
directory,
+ // which may be not the one Data Source table is referring to,
+ // yet which will be left behind when the table is dropped for
an external table
+ locationUri = if (isExternal) {
+ Some(relation.location.paths.map(_.toUri.toString).map {
+ case p if new File(p).isDirectory => p
+ case p => new File(p).getParent
--- End diff --
What if we are only reading a single data file that lives in a directory
containing multiple files?
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