Keary Suska <hierophant(at)pcisys(dot)net> writes:
> Why would PQhost() return NULL on a valid connection?
One reason why would be if you'd selected the server by hostaddr rather
than host. Returning a host name in this case would require a DNS
lookup, and since the entire point of the hostaddr feature is to avoid
DNS lookups, I don't think that's a particularly great idea.
These functions are really defined as "give me back the connection
options that were specified", anyway, not "peek inside to see what
values are actually in use". So a NULL for an unspecified option
seems reasonable to me.
regards, tom lane
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