finish columns and schema

models/intermediate/core/schema.yml

@@ -988,15 +988,77 @@ models:
             tests:
               - not_null
 
-          - name: is_subject_to_vat
+          - name: is_vat_taxed
             data_type: boolean
             description: |
               Syntactic suger to indicate if there's any VAT on this payment.
               Will be true if so, false if not for any reason (guest country has
               no VAT, the payment is for a deposit, etc.)
             tests:
-              - not_null         
-          
+              - not_null
+
+          - name: is_missing_user_country
+            data_type: boolean
+            description: |
+              True if, for some reason, the user doesn't have an informed 
+              country.
+
+              The only known, justified reason for this is that the user was
+              deleted, along with the billing details.
+
+              If this turns true in any other case, you should really find out 
+              why the guest doesn't have a billing country.
+
+            # should be uncommented once this ticket gets solved: 
+            #tests:
+            #  - not_null
+            #  - accepted_values:
+            #      values:
+            #        - false
+            #      where: are_user_details_deleted != true or are_user_details_deleted is not null
+                   
+
+                   
+          - name: is_missing_vat_rate_for_country
+            data_type: boolean
+            description: |
+              True if the user country is informed, but no VAT rates were found
+              for it.
+
+              This has to be a joining issue, since our database for VAT rates 
+              covers all the countries in the world. We simply assign a 0% rate
+              to countries where we don't collect taxes.
+
+              If this turns true in any other case, you should really find out 
+              what's happening.
+
+            # should be uncommented once this ticket gets solved: 
+            #tests:
+            #  - not_null
+            #  - accepted_values:
+            #      values:
+            #        - false
+
+          - name: are_user_details_deleted
+            data_type: boolean
+            description: |
+              True if the user has been deleted, which is a possible explanation
+              for why there might be no country informed.
+        
+          - name: is_missing_vat_details_without_known_cause
+            data_type: boolean
+            description: |
+              True if the VAT rate is missing as a fallback for any 
+              other reason beyond the other one specified in the table.
+
+              If this turns true, you have an unhandled problem and you should 
+              fix it.
+
+            tests:
+              - not_null   
+              - accepted_values:
+                  values:
+                    - false
           - include: all
             exclude: [amount_in_txn_currency, amount_in_gbp]
   - name: int_core__country