Tom Lane wrote:
I was reminded of $subject by http://archives.postgresql.org/pgsql-admin/2006-01/msg00002.php While I haven't tried it, I suspect that allowing a DNS host name would take little work (basically removing the AI_NUMERICHOST flag passed to getaddrinfo in hba.c). There was once a good reason not to allow it: slow DNS lookups would lock up the postmaster. But now that we do this work in an already-forked backend, with an overall timeout that would catch any indefinite blockage, I don't see a good reason why we shouldn't let people use DNS names. Thoughts?
We debated this back in May 2003 - I was going to do it but it got lost among other stuff. Still worth doing, I think.
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