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NAME="INFOSCHEMA-COLUMN-UDT-USAGE"
>33.11. <TT
CLASS="LITERAL"
>column_udt_usage</TT
></A
></H1
><P
>   The view <TT
CLASS="LITERAL"
>column_udt_usage</TT
> identifies all columns
   that use data types owned by a currently enabled role.  Note that in
   <SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
>, built-in data types behave
   like user-defined types, so they are included here as well.  See
   also <A
HREF="infoschema-columns.html"
>Section 33.12</A
> for details.
  </P
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>Table 33-9. <TT
CLASS="LITERAL"
>column_udt_usage</TT
> Columns</B
></P
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><TR
><TH
>Name</TH
><TH
>Data Type</TH
><TH
>Description</TH
></TR
></THEAD
><TBODY
><TR
><TD
><TT
CLASS="LITERAL"
>udt_catalog</TT
></TD
><TD
><TT
CLASS="TYPE"
>sql_identifier</TT
></TD
><TD
>       Name of the database that the column data type (the underlying
       type of the domain, if applicable) is defined in (always the
       current database)
      </TD
></TR
><TR
><TD
><TT
CLASS="LITERAL"
>udt_schema</TT
></TD
><TD
><TT
CLASS="TYPE"
>sql_identifier</TT
></TD
><TD
>       Name of the schema that the column data type (the underlying
       type of the domain, if applicable) is defined in
      </TD
></TR
><TR
><TD
><TT
CLASS="LITERAL"
>udt_name</TT
></TD
><TD
><TT
CLASS="TYPE"
>sql_identifier</TT
></TD
><TD
>       Name of the column data type (the underlying type of the
       domain, if applicable)
      </TD
></TR
><TR
><TD
><TT
CLASS="LITERAL"
>table_catalog</TT
></TD
><TD
><TT
CLASS="TYPE"
>sql_identifier</TT
></TD
><TD
>Name of the database containing the table (always the current database)</TD
></TR
><TR
><TD
><TT
CLASS="LITERAL"
>table_schema</TT
></TD
><TD
><TT
CLASS="TYPE"
>sql_identifier</TT
></TD
><TD
>Name of the schema containing the table</TD
></TR
><TR
><TD
><TT
CLASS="LITERAL"
>table_name</TT
></TD
><TD
><TT
CLASS="TYPE"
>sql_identifier</TT
></TD
><TD
>Name of the table</TD
></TR
><TR
><TD
><TT
CLASS="LITERAL"
>column_name</TT
></TD
><TD
><TT
CLASS="TYPE"
>sql_identifier</TT
></TD
><TD
>Name of the column</TD
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