Обсуждение: What does this mean?

    ERROR:  internal error: untrusted function not supported.
What does it mean and how do I fix it?

I'm trying to create a lower function to work with varchar ( I would
guess this would fall in with type coercion, Tom?).  

> ERROR:  internal error: untrusted function not supported.
> What does it mean and how do I fix it?
> I'm trying to create a lower function to work with varchar ( I would
> guess this would fall in with type coercion, Tom?).

>From the current development tree:

postgres=> select lower('ABCD'::varchar);
lower
-----
abcd
(1 row)

It's been a while since I've run across that message. Do you want to
send me your code?
                       - Tom