Thanks, but the behaviour seems identical. :(
/Palle
--On fredag, januari 14, 2005 07.37.46 +1100 John Hansen
<john(at)geeknet(dot)com(dot)au> wrote:
>> create index foo on group_data(this_group_id) where group_id is null;
>
> Try this instead;
>
> create index foo on group_data(this_group_id) where nullvalue(group_id);
>
> And
>
> Select * from group_data where this_group_id = 46 and nullvalue(group_id);
>
> ... John