This adds four columns to the `recording_session` table which are
foreign keys to the `iam_scope_hst`, `target_ssh_hst`,
`host_history_base`, and `host_catalog_history_base` tables. The foreign
key to the `iam_scope_hst` table references the project scope of the
target at the time of the recording.
The tables in the operational part of the Boundary database (meaning
non-warehouse tables) suffix primary key columns and foreign key columns
with `_id`. Many of these columns appear in the warehouse dimension and
fact tables as normal attributes, not primary keys or foreign keys. To
disambiguate ID columns from operational tables, the primary key column
for dimension tables will be renamed from `id` to `key` and the foreign
key columns in the fact tables will be renamed to change the suffix from
`_id` to `_key`.
Michael Gaffney
Johan Brandhorst-Satzkorn
Timothy Messier