Re: detecting a NULL box

I don't know why you want to list a NULL with no other info, but here
you go:

SELECT coords FROM dlg_control WHERE coords IS NULL LIMIT 1;

dschmidt@lexmark.com wrote:

>Does anybody know how to detect a NULL in a geometric box type?
>
>When I execute the following sql statement (coords is a box type)
>autotest=# select coords from dlg_control limit 1
>autotest-# \g
> coords
>--------
>
>(1 row)
>
>So, I have data that contains a "NULL" in the coords column, but when I
>test on box(NULL) I don't get any data...
>autotest=# select coords from dlg_control where coords=box(NULL) limit 1
>autotest-# \g
> coords
>--------
>(0 rows)
>
>Any ideas?
>Thanks,
>Dennis
>
>
>
>
>
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