Re: PQHost() undefined behavior if connecting string contains bothhost and hostaddr types - Mailing list pgsql-hackers

On Mon, Mar 26, 2018 at 11:39:51PM +1100, Haribabu Kommi wrote:
> And if we are not going to change the above, then PQhost() function
> returns 3 values,
> - NULL when the conn==NULL
> - Actual host or hostaddr of the active connection
> - Empty string when the conn is not able to evaluate.
>
> Is it fine to proceed like above?

Yeah, I would think that this is a sensible approach.  Keeping
consistent with NULL is good for the other function, and we still need a
way to identify the dont-know state.  Peter, what's your input on that?
--
Michael