Re: Number formatting

On Sat, Jun 10, 2006 at 07:15:02PM +0100, Andy Shellam wrote:
> So, what I'm trying to do is use a primary key to generate invoice
> numbers such as "INV0000001", "INV0000002" etc.  Obviously a sequence
> generates the increments, but when I try formatting it, it adds a space
> at the beginning of the number.

The FM modifier suppresses padding spaces.

http://www.postgresql.org/docs/8.1/interactive/functions-formatting.html#FUNCTIONS-FORMATTING-DATETIMEMOD-TABLE

test=> SELECT 'INV' || to_char(123, 'FM0000000');
  ?column?
------------
 INV0000123
(1 row)

--
Michael Fuhr