2009/9/3 Brendan Jurd <direvus(at)gmail(dot)com>:
> # select greater(1::aud, 0);
> ERROR: function greater(aud, integer) does not exist
> LINE 1: select greater(1::aud, 0);
> ^
> HINT: No function matches the given name and argument types. You
> might need to add explicit type casts.
>
Apologies for the spam, I just realised that it's because all
anyelement args in the call to greater() must be the same type.
Cheers,
BJ