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Deleting the Delta log directory would cause you to lose the underlying transaction history on the delta table and other delta related optimizations. In effect the table would be converted to a Parquet table at that point

Also, a lot of examples here: https://docs.databricks.com/administration-guide/clusters/policies.html#cluster-policy-examples

Global: run on every cluster in the workspace. They can help you to enforce consistent cluster configurations across your workspace. Use them carefully because they can cause unanticipated impacts, like library conflicts. Only admin users can create ...

Yes.Currently supported paths are:BYO VPC -> New BYO VPCDatabricks-created VPC -> New Databricks-created VPC

See this knowledge base article for details - https://kb.databricks.com/clusters/overwrite-log4j-logs.html

For Databricks Runtime 5.5 LTS, Spark jobs, Python notebook cells, and library installation all support both Python 2 and 3.The default Python version for clusters created using the UI is Python 3. In Databricks Runtime 5.5 LTS the default version fo...

Can you provide an example of what exactly do you mean? If the reference is to how "Repos" shows up in the UI, that's more for a Ux convenience. Repos as such are designed to be a container for version controlled notebooks that live in the Git reposi...

Delta Lake on Databricks has added runtime optimizations of the Delta Engine that further enhance the performance and scale of the open source Delta Format. In additional you also get access to a whole host of capabilities available on the Databricks...