> For the complete documentation index, see [llms.txt](https://docs.postgresql.tw/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.postgresql.tw/client-interfaces/the-information-schema/check_constraints.md).

# 37.9. check\_constraints

The view `check_constraints` contains all check constraints, either defined on a table or on a domain, that are owned by a currently enabled role. (The owner of the table or domain is the owner of the constraint.)

#### **Table 37.7. `check_constraints` Columns**

| <p>Column Type</p><p>Description</p>                                                                                                                    |
| ------------------------------------------------------------------------------------------------------------------------------------------------------- |
| <p><code>constraint\_catalog</code> <code>sql\_identifier</code></p><p>Name of the database containing the constraint (always the current database)</p> |
| <p><code>constraint\_schema</code> <code>sql\_identifier</code></p><p>Name of the schema containing the constraint</p>                                  |
| <p><code>constraint\_name</code> <code>sql\_identifier</code></p><p>Name of the constraint</p>                                                          |
| <p><code>check\_clause</code> <code>character\_data</code></p><p>The check expression of the check constraint</p>                                       |


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