Hi, On 2019-08-13 10:43:07 -0400, Tom Lane wrote: > How would we get at that data without writing our own DNS client? > (AFAIK, our existing DNS interactions are all handled by getnameinfo() > or other library-supplied functions.)
> Maybe that'd be worth doing, but it sounds like a lot of work and a > lot of new code to maintain, relative to the value of the feature. It might have enough independent advantages to make it worthwhile though. Right now our non-blocking interfaces aren't actually in a number of cases, due to name resolution being blocking. While that's documented, it imo means that our users need to use a non-blocking DNS library, if they need non-blocking PQconnectPoll() - it's imo not that practical to just use IPs in most cases. We also don't have particularly good control over the order of hostnames returned by getaddrinfo, which makes it harder to implement reliable round-robin etc. Greetings, Andres Freund
