The Unity migration guide (https://docs.databricks.com/en/data-governance/unity-catalog/migrate.html#before-you-begin) states the following:
Unity Catalog manages partitions differently than Hive. Hive commands that directly manipulate partitions are not supported on tables managed by Unity Catalog.
I'm unable to find documentation that elaborates on this statement. What specifically is different in the handling of partitions between Unity and hive? We have existing partitioned delta tables in our hive meta store that we are considering migrating to Unity.