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• Store partial dependencies
  Tdependent@ds=1 depends on T@ds=1 (spec).
  At describe time, the spec is evaluated and all the dependent partitions are computed dynamically. At add partition time, verify that the location captures all dependent partitions.
  The partial spec is not used for querying - location is used for that. At query time, verify that the location captures all dependent partitions.

• The dependent table does not have a location. The list of partitions are computed at query time - think of it like a view, where each partition has its own definition limited to 'select * from T where partial/full partition spec'. Query layer needs to change. Is it possible ?