Re: function problem

"geraldo" <geraldo(at)umc(dot)br> writes:
> Can anybody tell me why the following code when activated
> by a select only affects the first line of the table???
> create or replace function increase(integer)
> returns void as 'update tab set price=price*(1+$1/100.0)'
> language sql;

Works fine here.

regression=# create table tab (price numeric);
CREATE TABLE
regression=# insert into tab values(1);
INSERT 154584 1
regression=# insert into tab values(10);
INSERT 154585 1
regression=# insert into tab values(100);
INSERT 154586 1
regression=# select * from tab;
price
-------
1
10
100
(3 rows)

regression=# create or replace function increase(integer)
regression-# returns void as 'update tab set price=price*(1+$1/100.0)'
regression-# language sql;
CREATE FUNCTION
regression=# select increase(42);
increase
----------

(1 row)

regression=# select * from tab;
price
--------------------------
1.42000000000000000000
14.20000000000000000000
142.00000000000000000000
(3 rows)

regression=#

regards, tom lane