Re: HEAD \df doesn't show functions with no arguments

Michael Fuhr <mike(at)fuhr(dot)org> writes:
> The problem appears to be that proargtypes[0] is now NULL instead
> of 0. Here's a simplified version of the \df query:

> SELECT proname
> FROM pg_catalog.pg_proc p
> WHERE p.proargtypes[0] <> 'pg_catalog.cstring'::pg_catalog.regtype
> AND p.proname ~ '^foo$';

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?

regards, tom lane