18th October 2018: PostgreSQL 11 Released!
Supported Versions: Current (11) / 10 / 9.6 / 9.5 / 9.4 / 9.3
Development Versions: devel
Unsupported versions: 9.2 / 9.1 / 9.0 / 8.4 / 8.3 / 8.2 / 8.1 / 8.0 / 7.4

32.8. column_udt_usage

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)
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