Re: reformatting floats ?

Gauthier, Dave <dave.gauthier@intel.com> schrieb:

>
>
> Hi:
>
> if...
> create table coords (id int, x float, y float);
> then...
> insert into coords (id,x,y) values (1,1.000,2.001)
> and then...
>             select * from coords
> i get...
>             1,1,2.001
> i want...
>             1.1.000,2.001
> while retaining the numeric nature of the x,y data (for math ops in other
> operations).
>
> How can I reformat the float output (sort of like using %5.3f in good-ole C)

CAST it to numeric ;-)

test=# create table coords (id int, x float, y float);
CREATE TABLE
Time: 4.437 ms
test=*# insert into coords (id,x,y) values (1,1.000,2.001);
INSERT 0 1
Time: 4.831 ms
test=*# select id, x::numeric(10,3), y::numeric(10,3) from coords;
 id |   x   |   y
----+-------+-------
  1 | 1.000 | 2.001


Andreas
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