Select (str)::FLOAT8 BUG

Hi!,

I think i have found a bug.

I=B4ve tried it in PgSQL 7.3.5 & 7.4.1

When I do:

atisae_oct_1=3D# SELECT (1000/500/7)::FLOAT8 as v_numero;
 v_numero
----------
        0
(1 row)

atisae_oct_1=3D# SELECT 1000/500/7::FLOAT8 as v_numero;
     v_numero
-------------------
 0.285714285714286
(1 row)

atisae_oct_1=3D# SELECT (1000/500/7)::NUMERIC as v_numero;
 v_numero
----------
        0
(1 row)

atisae_oct_1=3D# SELECT 1000/500/7::NUMERIC as v_numero;
        v_numero
------------------------
 0.28571428571428571429
(1 row)


Why is different: 'SELECT (xxxxx)::FLOAT8' than 'SELECT xxxxx::FLOAT8'

Thanks in advance...

Rafa.