>.  The
     type names <TT
CLASS="TYPE"
>int2</TT
>, <TT
CLASS="TYPE"
>int4</TT
>, and
     <TT
CLASS="TYPE"
>int8</TT
> are extensions, which are also used by some
     other <ACRONYM
CLASS="ACRONYM"
>SQL</ACRONYM
> database systems.
    </P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="DATATYPE-NUMERIC-DECIMAL"
>8.1.2. Arbitrary Precision Numbers</A
></H2
><P
>     The type <TT
CLASS="TYPE"
>numeric</TT
> can store numbers with a
     very large number of digits and perform calculations exactly