Dear Spark developers, We noticed that cache name could be changed upon table refreshing. It is because CatalogImpl.refreshTable would first uncached and then recache (lazily) without first preserving cache name (and its storage level). IMHO, it is not what a user would expect.
I submitted a JIRA (https://issues.apache.org/jira/browse/SPARK-27248) and a PR (https://github.com/apache/spark/pull/24221), so that cache name and storage level would be preserved in table refreshing in the future. Appreciate anyone know this part well to review it further. It is my first PR to spark. I hope I make it right. Any comments and suggestions are welcome. [PS: many thanks to Attila Zsolt Piros on those style issues. ] Thanks and regards, William
