On Tue, Aug 28, 2012 at 1:06 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Also, right at the moment it's not clear to me whether there are any
> other cases besides integer literal vs smallint argument. I think
> that's the only particularly surprising case within the numeric
> hierarchy --- and for non-numeric types, the literal is generally going
> to start out "unknown" so the whole problem doesn't arise. I feel
> uncomfortable trying to invent general-purpose solutions to problems
> we have only one instance of ...
The other case that comes up regularly is someone trying to pass some
kind of number to a function such as LPAD(). There is only one LPAD()
so no ambiguity exists, but PostgreSQL doesn't even see that there's a
candidate.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company