Merged PR 2171: Adding Guest Journey metrics by deal id

Adding the 6 Guest Journey metrics by deal id by creating the model `int_core__monthly_guest_journey_history_by_deal`

The structure for the deal id detail follows yesterday's approach on bookings, namely `int_core__monthly_booking_history_by_deal`, but considering the metric computation of the guest journey, namely `int_core__mtd_guest_journey_metrics`.

It also adds the dbt tests ensuring that date and id_deal are not null and that the combination of both is unique.

Related work items: #17689

models/intermediate/core/int_core__monthly_guest_journey_history_by_deal.sql

@@ -0,0 +1,71 @@
+/*
+This model provides monthly guest journey metrics for those hosts that have a deal assigned.
+
+*/
+{{ config(materialized="table", unique_key=["date","id_deal"]) }}
+
+with
+    int_core__verification_requests as (select * from {{ ref("int_core__verification_requests") }}),
+    int_dates_by_deal as (select * from {{ ref("int_dates_by_deal") }}),
+    int_core__unified_user as (select * from {{ ref("int_core__unified_user") }}),
+
+    -- Created Guest Journeys by id_deal --
+    created_year_month as (
+        select 
+            date_trunc('month', vr.created_date_utc)::date as first_day_month, 
+            u.id_deal, 
+            count(distinct vr.id_verification_request) as created_guest_journeys
+        from int_core__unified_user u 
+        inner join int_core__verification_requests vr
+            on u.id_user = vr.id_user_host
+        where u.id_deal is not null
+        group by 1,2
+    ),
+    -- Started Guest Journeys by id_deal --
+    started_year_month as (
+        select 
+            date_trunc('month', vr.verification_estimated_started_date_utc)::date as first_day_month, 
+            u.id_deal, 
+            count(distinct vr.id_verification_request) as started_guest_journeys
+        from int_core__unified_user u 
+        inner join int_core__verification_requests vr
+            on u.id_user = vr.id_user_host
+        where u.id_deal is not null
+        group by 1,2
+    ),
+    -- Completed Guest Journeys by id_deal --
+    completed_year_month as (
+        select 
+            date_trunc('month', vr.verification_estimated_completed_date_utc)::date as first_day_month,
+            u.id_deal, 
+            count(distinct vr.id_verification_request) as completed_guest_journeys
+        from int_core__unified_user u 
+        inner join int_core__verification_requests vr
+            on u.id_user = vr.id_user_host
+        where u.id_deal is not null
+        group by 1,2
+    )
+    -- Final aggregation of subqueries + rates computation --
+    select 
+    	d.year,
+    	d.month,
+    	d.day,
+    	d.date,
+        d.id_deal,
+    	cym.created_guest_journeys,
+    	sym.started_guest_journeys,
+    	coym.completed_guest_journeys,
+    	cast(sym.started_guest_journeys as decimal)/cym.created_guest_journeys as start_rate_guest_journey,
+    	cast(coym.completed_guest_journeys as decimal)/sym.started_guest_journeys as completion_rate_guest_journey,
+    	1-cast(coym.completed_guest_journeys as decimal)/sym.started_guest_journeys as incompletion_rate_guest_journey
+    from int_dates_by_deal d 
+    left join created_year_month cym 
+        on d.first_day_month = cym.first_day_month 
+        and d.id_deal = cym.id_deal
+    left join started_year_month sym 
+        on d.first_day_month = sym.first_day_month 
+        and d.id_deal = sym.id_deal
+    left join completed_year_month coym 
+        on d.first_day_month = coym.first_day_month 
+        and d.id_deal = coym.id_deal
+    

models/intermediate/core/schema.yaml

@@ -167,6 +167,29 @@ models:
         tests:
           - not_null
 
+  - name: int_core__monthly_guest_journey_history_by_deal
+    description: |
+      This model contains the historic information regarding the guest journey for each deal id. 
+      It's used for the business KPIs in the view by deal id. Data is aggregated at the last
+      day of the month, or up to yesterday if it's the current month.
+    tests: 
+      - dbt_utils.unique_combination_of_columns:
+          combination_of_columns:
+            - date
+            - id_deal
+
+    columns:
+      - name: date
+        data_type: date
+        description: The last day of the month or yesterday for historic guest journey metrics.
+        tests:
+          - not_null
+
+      - name: id_deal
+        data_type: character varying
+        description: Id of the deal associated to the host. 
+        tests:
+          - not_null
 
   - name: int_core__mtd_booking_metrics
     description: |