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Update constraints.md #3736

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merged 4 commits into from
Aug 11, 2023
Merged

Update constraints.md #3736

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fdc9e43
Update constraints.md
runleonarun Jul 13, 2023
551913b
Update website/docs/reference/resource-properties/constraints.md
runleonarun Jul 13, 2023
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Apply suggestions from code review
matthewshaver Aug 11, 2023
8ab7453
Merge branch 'current' into runleonarun-patch-8
matthewshaver Aug 11, 2023
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57 changes: 56 additions & 1 deletion website/docs/reference/resource-properties/constraints.md
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Expand Up @@ -353,7 +353,62 @@ models:

</File>

Expected DDL to enforce constraints:
### Column-level constraint on nested column:
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<File name='models/nested_column_constraints_example.sql'>

```sql
{{
config(
materialized = "table"
)
}}

select
'string' as a,
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It would be nice if this example were more "real world" but this gets the point across.

struct(
1 as id,
'name' as name,
struct(2 as id, struct('test' as again, '2' as even_more) as another) as double_nested
) as b
```

</File>

<File name='models/nested_fields.yml'>

```yml
version: 2

models:
- name: nested_column_constraints_example
config:
contract:
enforced: true
columns:
- name: a
data_type: string
- name: b.id
data_type: integer
constraints:
- type: not_null
- name: b.name
description: test description
data_type: string
- name: b.double_nested.id
data_type: integer
- name: b.double_nested.another.again
data_type: string
- name: b.double_nested.another.even_more
data_type: integer
constraints:
- type: not_null
```

</File>

### Expected DDL to enforce constraints:
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<File name='target/run/.../constraints_example.sql'>

```sql
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