imback82 commented on a change in pull request #30774:
URL: https://github.com/apache/spark/pull/30774#discussion_r543026892
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/command/tables.scala
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@@ -195,16 +195,21 @@ case class AlterTableRenameCommand(
DDLUtils.verifyAlterTableType(catalog, table, isView)
// If an exception is thrown here we can just assume the table is
uncached;
// this can happen with Hive tables when the underlying catalog is
in-memory.
- val wasCached =
Try(sparkSession.catalog.isCached(oldName.unquotedString)).getOrElse(false)
Review comment:
The existing implementation uses `Catalog` APIs (`isCached`), whereas
this PR uses `CacheManager` directly. If this approach is not desired, we can
update `Catalog` API to expose `StorageLevel`.
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