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Note: The following description applies both to Postgres-XC and PostgreSQL if not described explicitly.
The view domain_udt_usage identifies all domains that are based on data types owned by a currently enabled role. Note that in Postgres-XC, built-in data types behave like user-defined types, so they are included here as well.
Table 33-18. domain_udt_usage Columns
| Name | Data Type | Description |
|---|---|---|
| udt_catalog | sql_identifier | Name of the database that the domain data type is defined in (always the current database) |
| udt_schema | sql_identifier | Name of the schema that the domain data type is defined in |
| udt_name | sql_identifier | Name of the domain data type |
| domain_catalog | sql_identifier | Name of the database that contains the domain (always the current database) |
| domain_schema | sql_identifier | Name of the schema that contains the domain |
| domain_name | sql_identifier | Name of the domain |