</para>
      <para>
       If the domain has a character or bit string type, the declared
       maximum length; null for all other data types or if no maximum
       length was declared.
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>character_octet_length</structfield> <type>cardinal_number</type>
      </para>
      <para>
       If the domain has a character type, the maximum possible length
       in octets (bytes) of a datum; null for all other data types.
       The maximum octet length depends on the declared character
       maximum length (see above) and the server encoding.
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>character_set_catalog</structfield> <type>sql_identifier</type>
      </para>
      <para>
       Applies to a feature not available in <productname>PostgreSQL</productname>
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>character_set_schema</structfield> <type>sql_identifier</type>
      </para>
      <para>
       Applies to a feature not available in <productname>PostgreSQL</productname>
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>character_set_name</structfield> <type>sql_identifier</type>
      </para>
      <para>
       Applies to a feature not available in <productname>PostgreSQL</productname>
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>collation_catalog</structfield> <type>sql_identifier</type>
      </para>
      <para>
       Name of the database containing the collation of the domain
       (always the current database), null if default or the data type
       of the domain is not collatable
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>collation_schema</structfield> <type>sql_identifier</type>
      </para>
      <para>
       Name of the schema containing the collation of the domain, null
       if default or the data type of the domain is not collatable
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>collation_name</structfield> <type>sql_identifier</type>
      </para>
      <para>
       Name of the collation of the domain, null if default or the
       data type of the domain is not collatable
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>numeric_precision</structfield> <type>cardinal_number</type>
      </para>
      <para>
       If the domain has a numeric type, this column contains the
       (declared or implicit) precision of the type for this domain.
       The precision indicates the number of significant digits.  It
       can be expressed in decimal (base 10) or binary (base 2) terms,
       as specified in the column
       <literal>numeric_precision_radix</literal>.  For all other data
       types, this column is null.
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>numeric_precision_radix</structfield> <type>cardinal_number</type>
      </para>
      <para>
       If the domain has a numeric type, this column indicates in
       which base the values in the columns
       <literal>numeric_precision</literal> and
       <literal>numeric_scale</literal> are expressed.  The value is
       either 2 or 10.  For all other data types, this column is null.
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">