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Problem statement

For users that relies on mount points and not on external tables, we should provide to them an easy way to migrate their existing mounts into external tables on UC.

Proposed Solution

Rely on ExternalLocations from https://github.com/databrickslabs/ucx/blob/main/src/databricks/labs/ucx/hive_metastore/locations.py#L32-L213

Similar to the output of create-table-mapping, the user will provide a mapping file where each source path will be mapped to a target external table on UC.
The command will then create catalogs / schemas / tables appropriately.

Related issues:

• Added 'create-catalogs-schemas' command to prepare destination catalogs and schemas before table migration #1028

Additional Context

No response