chufa

1. Prepare users who do not have access to catalog. 2. Use this user account to execute show catalogs; 3, presto return catalog results, all filtered, here continue to execute...

I have integrated ranger permissions in presto to manage data source permissions such as mysql, hive, etc. The ranger configuration is all by default; the It is just that there...

So it's curious if it returns null if there are no permissions, or if it reports an error about not having permissions, but presto always reports it as an internal...