Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/15434#discussion_r82944802
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/catalog/SessionCatalog.scala
---
@@ -459,11 +459,20 @@ class SessionCatalog(
* If a database is specified in `oldName`, this will rename the table
in that database.
* If no database is specified, this will first attempt to rename a
temporary table with
* the same name, then, if that does not exist, rename the table in the
current database.
+ *
+ * This assumes the database specified in `newName` matches the one in
`oldName`.
*/
- def renameTable(oldName: TableIdentifier, newName: String): Unit =
synchronized {
+ def renameTable(oldName: TableIdentifier, newName: TableIdentifier):
Unit = synchronized {
val db = formatDatabaseName(oldName.database.getOrElse(currentDb))
+ newName.database.map(formatDatabaseName).foreach { newDb =>
--- End diff --
uh, I see. If this is by design, I do not have more questions. LGTM
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