> 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/16/client-interfaces/the-information-schema/36.12.-column_domain_usage.md).

# 37.13. column\_domain\_usage

The view `column_domain_usage` identifies all columns (of a table or a view) that make use of some domain defined in the current database and owned by a currently enabled role.

#### **Table 37.11. `column_domain_usage` Columns**

| <p>Column Type</p><p>Description</p>                                                                                                            |
| ----------------------------------------------------------------------------------------------------------------------------------------------- |
| <p><code>domain\_catalog</code> <code>sql\_identifier</code></p><p>Name of the database containing the domain (always the current database)</p> |
| <p><code>domain\_schema</code> <code>sql\_identifier</code></p><p>Name of the schema containing the domain</p>                                  |
| <p><code>domain\_name</code> <code>sql\_identifier</code></p><p>Name of the domain</p>                                                          |
| <p><code>table\_catalog</code> <code>sql\_identifier</code></p><p>Name of the database containing the table (always the current database)</p>   |
| <p><code>table\_schema</code> <code>sql\_identifier</code></p><p>Name of the schema containing the table</p>                                    |
| <p><code>table\_name</code> <code>sql\_identifier</code></p><p>Name of the table</p>                                                            |
| <p><code>column\_name</code> <code>sql\_identifier</code></p><p>Name of the column</p>                                                          |


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