An example of the operation on the server is shown below.

1. Delete a masking policy
   Execute the pgx_drop_confidential_policy system management function to delete a masking policy.

   postgres=# select pgx_drop_confidential_policy(table_name := 't1', policy_name := 'p1');
    pgx_drop_confidential_policy 
   -------------------------------
    t
   (1 row)

2. Confirm the displayed data
   Confirm that the original data is displayed by deleting the masking policy.

   postgres=# select * from t1;
    c1 |      c2       
   ----+---------------
     1 | 012-3456-7890
     2 | 012-3456-7891
     3 | 012-3456-7892
   (3 row)