><TD
>&nbsp;</TD
><TD
>       For a table column, this is the column number (the
       <TT
CLASS="STRUCTFIELD"
>objid</TT
> and <TT
CLASS="STRUCTFIELD"
>classid</TT
> refer to the
       table itself).  For all other object types, this column is
       zero.
      </TD
></TR
><TR
><TD
><TT
CLASS="STRUCTFIELD"
>refclassid</TT
></TD
><TD
><TT
CLASS="TYPE"
>oid</TT
></TD
><TD
><TT
CLASS="LITERAL"
><A
HREF="catalog-pg-class.html"
><TT
CLASS="STRUCTNAME"
>pg_class</TT
></A
>.oid</TT
></TD
><TD
>The OID of the s