Temporary fix for the problem that pg_stat_activity, inet_client_addr(),
and inet_server_addr() fail if the client connected over a "scoped" IPv6
address. In this case getnameinfo() will return a string ending with
a poorly-standardized "%something" zone specifier, which these functions
try to feed to network_in(), which won't take it. So that we don't lose
functionality altogether, suppress the zone specifier before giving the
string to network_in(). Per report from Brian Hirt.
TODO: probably someday the inet type should support scoped IPv6 addresses,
and then this patch should be reverted.
Backpatch to 8.2 ... is it worth going further?
network.c (r1.69 -> r1.70)
pgstatfuncs.c (r1.41 -> r1.42)
builtins.h (r1.292 -> r1.293)
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