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Defining multiple primary_key constraints at the column level is not supported #5210

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Apr 4, 2024
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Defining multiple primary_key constraints at the column level is not supported #5210

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95be281
Update constraints.md
will-sargent-dbtlabs Apr 2, 2024
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Merge branch 'current' into will-sargent-dbtlabs-patch-1
will-sargent-dbtlabs Apr 3, 2024
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Merge branch 'current' into will-sargent-dbtlabs-patch-1
mirnawong1 Apr 4, 2024
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Update website/docs/reference/resource-properties/constraints.md
mirnawong1 Apr 4, 2024
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2 changes: 2 additions & 0 deletions website/docs/reference/resource-properties/constraints.md
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Expand Up @@ -15,6 +15,8 @@ Constraints require the declaration and enforcement of a model [contract](/refer

Constraints may be defined for a single column, or at the model level for one or more columns. As a general rule, we recommend defining single-column constraints directly on those columns.

If you are defining multiple `primary_key` constraints for a single model, those _must_ be defined at the model level. Defining multiple `primary_key` constraints at the column level is not supported.

The structure of a constraint is:
- `type` (required): one of `not_null`, `unique`, `primary_key`, `foreign_key`, `check`, `custom`
- `expression`: Free text input to qualify the constraint. Required for certain constraint types, and optional for others.
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