Thread: Division in Postgre

In sql server my division select cast(3 as float)/10 is 0.29999999999.
But in postgres select cast(3 as float8)/10 is 0.3. How to get result like
sql server?
Thank you. Sorry for my english

On Sun, 24 Apr 2005, tuan wrote:

> In sql server my division select cast(3 as float)/10 is 0.29999999999.
> But in postgres select cast(3 as float8)/10 is 0.3. How to get result like
> sql server?

I believe you can control what precision is used in printing the float
results with extra_float_digits. I believe setting it to 2 will give a
0.29... result however it has more 9s than the above.

Thank you
----- Original Message -----
From: "Stephan Szabo" <sszabo@megazone.bigpanda.com>
To: "tuan" <atuan_h@hotmail.com>
Cc: <pgsql-sql@postgresql.org>
Sent: Saturday, April 30, 2005 10:56 AM
Subject: Re: [SQL] Division in Postgre


> On Sun, 24 Apr 2005, tuan wrote:
>
> > In sql server my division select cast(3 as float)/10 is 0.29999999999.
> > But in postgres select cast(3 as float8)/10 is 0.3. How to get result
like
> > sql server?
>
> I believe you can control what precision is used in printing the float
> results with extra_float_digits. I believe setting it to 2 will give a
> 0.29... result however it has more 9s than the above.
>
>
> ---------------------------(end of broadcast)---------------------------
> TIP 3: if posting/reading through Usenet, please send an appropriate
>       subscribe-nomail command to majordomo@postgresql.org so that your
>       message can get through to the mailing list cleanly