Re: [BUGS] concat fails 'sometimes' on empty colums in select

2004-12-12 Thread Josh Berkus
Stefan, > To simplify this operation you could create an operator that does > the coalesce for you. ÂThis has come up recently; search the list > archives for examples. Actually, it's on General Bits: http://www.varlena.com/varlena/GeneralBits/84.php -- Josh Berkus Aglio Database Solutions San

Re: [BUGS] concat fails 'sometimes' on empty colums in select

2004-12-11 Thread Michael Fuhr
On Sat, Dec 11, 2004 at 01:54:35PM -0600, Bruno Wolff III wrote: > > Empty strings and NULL values aren't the same thing. You probably either > want to store empty strings or use coalesce to change NULL to an empty > string before using concatenation, as a NULL concatenated with anything > results

Re: [BUGS] concat fails 'sometimes' on empty colums in select

2004-12-11 Thread Bruno Wolff III
On Sat, Dec 11, 2004 at 03:33:07 +0100, Stefan de Konink <[EMAIL PROTECTED]> wrote: > Hi, > > I have a table with some empty colums, if I try to concat my colums to > eachother something strange happens. Rather empty column B produces > virtually no output using the || in the select query. But

[BUGS] concat fails 'sometimes' on empty colums in select

2004-12-11 Thread Stefan de Konink
Hi, I have a table with some empty colums, if I try to concat my colums to eachother something strange happens. Rather empty column B produces virtually no output using the || in the select query. But the half filed colum A does give the desired output. midvliet=# select snr, achternaam||', '||