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29 changes: 29 additions & 0 deletions jaffle_shop/models/customer_total_spend.sql
Original file line number Diff line number Diff line change
@@ -0,0 +1,29 @@
{{ config(materialized='table') }}

with orders as (
select * from {{ ref('stg_orders') }}
),

customer_spend as (
select
customer_id,
sum(order_amount) as total_amount_spent
from orders
group by customer_id
),

customers as (
select * from {{ ref('stg_customers') }}
),

final as (
select
c.customer_id,
c.first_name,
c.last_name,
coalesce(cs.total_amount_spent, 0) as total_amount_spent
from customers c
left join customer_spend cs using (customer_id)
)

select * from final