Hello
2011/12/8 Ingmar Brouns :
>
> Hi,
>
> The documentation of the function concat states: Concatenate all arguments.
> NULL arguments are ignored.
> Intuitively I would expect that
>
> concat(NULL, NULL) IS NULL
>
> but this is not the case as it equals the empty string. As no empty string
> wa
Hi,
The documentation of the function concat states: Concatenate all arguments.
NULL arguments are ignored.
Intuitively I would expect that
concat(NULL, NULL) IS NULL
but this is not the case as it equals the empty string. As no empty string
was passed, the empty string seems
to come from nowher
