Catalog item transformation data source

Hi, in the tutorial for Catalog item transformation, the ‘Support Data Sources’ says:
’ You can use this option only when working with database tables, not with catalog items coming from Hadoop HDFS, Hadoop Hive, Amazon S3, Server file system, Remote executor, or file uploads’

While I tried to add simple rule to item profiled from Hive and it works (just change the column name). So Please clarify what above means ?

Thanks!

Hello Jet,
I can confirm that transformation rules are available both when working via one of the supported data sources or catalog items coming from the remove executor, as is the case with Hive. The relevant changes will be made to our documentation shortly.
Thank you for the feedback!

Kind Regards,
Maksim