Bruce Momjian <pgman@candle.pha.pa.us> writes:
> Tom Lane wrote:
>> We could fix it by changing <> to IS DISTINCT FROM ... but I've never
>> been very happy with the idea that \df tries to suppress I/O functions
>> anyway. How do you feel about removing the cstring test altogether?
> I like the cstring test. I don't think users want to see functions they
> can't call from SQL, and they will ask about them if we show them.
What makes you think you can't call 'em from SQL?
regression=# select int4in('345');int4in
-------- 345
(1 row)
regards, tom lane