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 32.9 for details.
Table 32-6. 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)
Deliver First Class Web Sites: 101 Essential Checklists Want to learn how to make your web sites usable and accessible? Want to ensure that your sites meet current best practice, without spending hours trawling through incomprehensible specifications and recommendations from dozens of different books, research papers, and web sites? Want to make sure that the sites you build are "right the first time," requiring no costly redevelopments?
Free Sample Chapters