S="TYPE"
>serial</TT
>
      implied <TT
CLASS="LITERAL"
>UNIQUE</TT
>.  This is no longer automatic.  If
      you wish a serial column to have a unique constraint or be a
      primary key, it must now be specified, just like
      any other data type.
     </P
></BLOCKQUOTE
></DIV
><P
>     To insert the next value of the sequence into the <TT
CLASS="TYPE"
>serial</TT
>
     column, specify that the <TT
CLASS="TYPE"
>serial</TT
>
     column should be assigned its default value. This can be done
     eit