"geraldo" <[EMAIL PROTECTED]> 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
---------------------------(end of broadcast)---------------------------
TIP 9: the planner will ignore your desire to choose an index scan if your
joining column's datatypes do not match
