36.22. domain_udt_usage
  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 36.20. 
    
     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 |