Vihang Karajgaonkar created HIVE-23785:

             Summary: Database should have a unique id
                 Key: HIVE-23785
             Project: Hive
          Issue Type: Improvement
            Reporter: Vihang Karajgaonkar
            Assignee: Vihang Karajgaonkar

HIVE-20556 introduced a id field to the Table object. This is a useful 
information since a table which is dropped and recreated with the same name 
will have a different Id. If a HMS client is caching such table object, it can 
be used to determine if the table which is present on the client-side matches 
with the one in the HMS.

We can expand this idea to other HMS objects like Database, Catalogs and 
Partitions and add a new id field.

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