role="catalog_table_entry"><para role="column_definition">
       <structfield>dependent_column</structfield> <type>sql_identifier</type>
      </para>
      <para>
       Name of the generated column
      </para></entry>
     </row>
    </tbody>
   </tgroup>
  </table>
 </sect1>

 <sect1 id="infoschema-column-domain-usage">
  <title><literal>column_domain_usage</literal></title>

  <para>
   The view <literal>column_domain_usage</literal> identifies all
   columns (of a table or a view) that make use of some domain defined
   in the current database and owned by a currently enabled role.
  </para>

  <table>
   <title><structname>column_domain_usage</structname> Columns</title>
   <tgroup cols="1">
    <thead>
     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       Column Type
      </para>
      <para>
       Description
      </para></entry>
     </row>
    </thead>

    <tbody>
     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>domain_catalog</structfield> <type>sql_identifier</type>
      </para>
      <para>
       Name of the database containing the domain (always the current database)
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>domain_schema</structfield> <type>sql_identifier</type>
      </para>
      <para>
       Name of the schema containing the domain
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>domain_name</structfield> <type>sql_identifier</type>
      </para>
      <para>
       Name of the domain
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>table_catalog</structfield> <type>sql_identifier</type>
      </para>
      <para>
       Name of the database containing the table (always the current database)
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>table_schema</structfield> <type>sql_identifier</type>
      </para>
      <para>
       Name of the schema containing the table
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>table_name</structfield> <type>sql_identifier</type>
      </para>
      <para>
       Name of the table
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>column_name</structfield> <type>sql_identifier</type>
      </para>
      <para>
       Name of the column
      </para></entry>
     </row>
    </tbody>
   </tgroup>
  </table>
 </sect1>

 <sect1 id="infoschema-column-options">
  <title><literal>column_options</literal></title>

  <para>
   The view <literal>column_options</literal> contains all the
   options defined for foreign table columns in the current database.  Only
   those foreign table columns are shown that the current user has access to
   (by way of being the owner or having some privilege).
  </para>

  <table>
   <title><structname>column_options</structname> Columns</title>
   <tgroup cols="1">
    <thead>
     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       Column Type
      </para>
      <para>
       Description
      </para></entry>
     </row>
    </thead>

    <tbody>
     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>table_catalog</structfield> <type>sql_identifier</type>
      </para>
      <para>
       Name of the database that contains the foreign table (always the current database)
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>table_schema</structfield> <type>sql_identifier</type>