a few quick and dirty improvements

models/intermediate/core/int_core__booking_charge_events.sql

@@ -1,3 +1,4 @@
+{{ config(materialized="table", unique_key="id_booking") }}
 with
     stg_core__booking as (select * from {{ ref("stg_core__booking") }}),
     int_core__price_plans as (select * from {{ ref("int_core__price_plans") }}),

models/intermediate/core/int_core__bookings.sql

@@ -1,3 +1,4 @@
+{{ config(materialized="table", unique_key="id_booking") }}
 with
     stg_core__booking as (select * from {{ ref("stg_core__booking") }}),
     stg_core__booking_state as (select * from {{ ref("stg_core__booking_state") }}),

models/intermediate/core/int_core__duplicate_bookings.sql

@@ -1,3 +1,4 @@
+{{ config(materialized="table", unique_key="id_booking") }}
 with
     stg_core__booking_state as (select * from {{ ref("stg_core__booking_state") }}),
     stg_core__booking_with_dup_flag as (

models/intermediate/core/int_core__verification_request_completeness.sql

@@ -37,6 +37,7 @@ As for the general logic, so that the monster below makes some slight sense:
     - Finally, whatever doesn't fall into Not Started or Action Required, 
       is considered Complete.
 */
+{{ config(materialized="table", unique_key="id_verification_request") }}
 with
     stg_core__verification_request as (
         select * from {{ ref("stg_core__verification_request") }}

models/intermediate/core/int_core__verification_requests.sql

@@ -1,3 +1,4 @@
+{{ config(materialized="table", unique_key="id_verification_request") }}
 with
     stg_core__verification_request as (
         select * from {{ ref("stg_core__verification_request") }}