Travel Jadoo <jadoo@xs4all.nl> writes:
> I could not find any discussion on this but imho this seems an erroneous
> error occuring now in 7.3.4 (after upgrade from 7.2.3):
> select null::time, 'test'::varchar as time order by time;
> ERROR: ORDER BY 'time' is ambiguous
What's erroneous about it? You have two output columns named 'time'.
regards, tom lane