bac=# \d+ contacts
                                   Table "public.contacts"
   Column    | Type | Collation | Nullable | Default | Storage  | Stats target | Description
-------------+------+-----------+----------+---------+----------+--------------+-------------
 contract    | uuid |           | not null |         | plain    |              |
 description | text |           |          |         | extended |              |
 email       | text |           | not null |         | extended |              |
Indexes:
    "contacts_pkey" PRIMARY KEY, btree (contract, email)
Foreign-key constraints:
    "contacts_contract_fkey" FOREIGN KEY (contract) REFERENCES contracts(uuid) ON DELETE CASCADE