> test=# select null_safe_cmp (NULL,NULL);
> ERROR: could not determine anyarray/anyelement type because input has
> type "unknown"
> test=# select null_safe_cmp (NULL::integer,NULL::integer);
> null_safe_cmp
> ---------------
> 1
> (1 row)
>
> Same casting problem due to anyelement, of course.
Yes - I wonder what the trick to getting around that is?
Chris