Initial open-source release

python/klo-sl/sources/ecommerce/churn_risk.yaml

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+name: churn_risk
+description: |
+  Customer churn risk score combining tenure,
+  usage trends, and support burden.
+sql: |
+  SELECT
+    c.id AS customer_id,
+    c.name AS customer_name,
+    calculate_churn_score(c.id) AS score,
+    CASE
+      WHEN c.arr < 50000 THEN 'SMB'
+      WHEN c.arr < 500000 THEN 'Mid-Market'
+      ELSE 'Enterprise'
+    END AS customer_type
+  FROM customers c
+  JOIN usage_summary u ON c.id = u.customer_id
+  JOIN ticket_summary t ON c.id = t.customer_id
+grain: [customer_id]
+columns:
+  - name: customer_id
+    type: number
+  - name: customer_name
+    type: string
+  - name: score
+    type: number
+  - name: customer_type
+    type: string
+joins:
+  - to: customers
+    "on": customer_id = customers.id
+    relationship: many_to_one
+measures:
+  - name: avg_risk
+    expr: avg(score)
+    description: "Average churn risk score"

python/klo-sl/sources/ecommerce/customers.yaml

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+name: customers
+table: public.customers
+grain: [id]
+columns:
+  - name: id
+    type: number
+  - name: name
+    type: string
+  - name: segment
+    type: string
+  - name: region_id
+    type: number
+  - name: created_at
+    type: time
+    role: time
+joins:
+  - to: regions
+    "on": region_id = regions.id
+    relationship: many_to_one

python/klo-sl/sources/ecommerce/order_items.yaml

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+name: order_items
+table: public.order_items
+grain: [id]
+columns:
+  - name: id
+    type: number
+  - name: order_id
+    type: number
+  - name: product_id
+    type: number
+  - name: quantity
+    type: number
+  - name: price
+    type: number
+joins:
+  - to: orders
+    "on": order_id = orders.id
+    relationship: many_to_one
+  - to: products
+    "on": product_id = products.id
+    relationship: many_to_one

python/klo-sl/sources/ecommerce/orders.yaml

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+name: orders
+table: public.orders
+grain: [id]
+columns:
+  - name: id
+    type: number
+  - name: customer_id
+    type: number
+  - name: amount
+    type: number
+  - name: cost
+    type: number
+  - name: status
+    type: string
+  - name: created_at
+    type: time
+    role: time
+joins:
+  - to: customers
+    "on": customer_id = customers.id
+    relationship: many_to_one
+measures:
+  - name: revenue
+    expr: sum(amount)
+    filter: "status != 'refunded'"
+    description: "Net revenue excluding refunds"
+  - name: order_count
+    expr: count(id)
+  - name: total_amount
+    expr: sum(amount)
+    description: "Total order amount across all statuses"
+  - name: paid_amount
+    expr: sum(amount)
+    filter: "status = 'paid'"
+    description: "Total amount from paid orders only"
+  - name: refunded_amount
+    expr: sum(amount)
+    filter: "status = 'refunded'"
+    description: "Total amount from refunded orders"

python/klo-sl/sources/ecommerce/products.yaml

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+name: products
+table: public.products
+grain: [id]
+columns:
+  - name: id
+    type: number
+  - name: name
+    type: string
+  - name: category
+    type: string
+  - name: price
+    type: number

python/klo-sl/sources/ecommerce/regions.yaml

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+name: regions
+table: public.regions
+grain: [id]
+columns:
+  - name: id
+    type: number
+  - name: name
+    type: string