reformatting floats ?

On Thu, Dec 06, 2007 at 01:22:55PM -0500, Gauthier, Dave wrote:

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).

I imagine you want to_char().

Have a nice day,
--
Martijn van Oosterhout <kleptog@svana.org> http://svana.org/kleptog/

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
--
Really, I'm not out to destroy Microsoft. That will just be a completely
unintentional side effect. (Linus Torvalds)
"If I was god, I would recompile penguin with --enable-fly." (unknow)
Kaufbach, Saxony, Germany, Europe. N 51.05082°, E 13.56889°

Both work (to_char and casting to numeric)
Thanks !

-----Original Message-----
From: pgsql-general-owner@postgresql.org [mailto:pgsql-general-owner@postgresql.org] On Behalf Of Andreas Kretschmer
Sent: Thursday, December 06, 2007 1:46 PM
To: pgsql-general@postgresql.org
Subject: Re: [GENERAL] 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
--
Really, I'm not out to destroy Microsoft. That will just be a completely
unintentional side effect. (Linus Torvalds)
"If I was god, I would recompile penguin with --enable-fly." (unknow)
Kaufbach, Saxony, Germany, Europe. N 51.05082°, E 13.56889°

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