helman wrote:
>
> The following bug has been logged online:
>
> Bug reference: 1568
> Logged by: helman
> Email address: 123@123.com
> PostgreSQL version: 8.0
> Operating system: linux
> Description: concat
> Details:
>
> concat no accept null
Concatting a NULL returns a NULL. You might want to use COALESCE() to
return '' for NULL in the concat.
--
Bruce Momjian | http://candle.pha.pa.us
pgman@candle.pha.pa.us | (610) 359-1001
+ If your life is a hard drive, | 13 Roberts Road
+ Christ can be your backup. | Newtown Square, Pennsylvania 19073