The view domain_udt_usage identifies all domains that are based on data types owned by a currently enabled role. Note that in PostgreSQL, built-in data types behave like user-defined types, so they are included here as well.
Table 34-18. domain_udt_usage Columns
|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|
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