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The view column_udt_usage identifies all columns that use data types owned by the current user. Note that in PostgreSQL, built-in data types behave like user-defined types, so they are included here as well. See also Section 30.9 for details.
Table 30-6. column_udt_usage Columns
| Name | Data Type | Description |
|---|---|---|
| udt_catalog | sql_identifier | Name of the database that the column data type (the underlying type of the domain, if applicable) is defined in (always the current database) |
| udt_schema | sql_identifier | Name of the schema that the column data type (the underlying type of the domain, if applicable) is defined in |
| udt_name | sql_identifier | Name of the column data type (the underlying type of the domain, if applicable) |
| table_catalog | sql_identifier | Name of the database containing the table (always the current database) |
| table_schema | sql_identifier | Name of the schema containing the table |
| table_name | sql_identifier | Name of the table |
| column_name | sql_identifier | Name of the column |