> That's part of the streaming replication protocol
>
> http://www.postgresql.org/docs/9.3/static/protocol-replication.html
> As long as you're using wal_level >= archive and the replication connection is enabled you can retrieve it via psql
Yes, I know, but there is no way to get the systemid value from a function using just SQL or plpgsql?
> If it's just for licencing perhaps inet_server_addr() or a plperl function to grab the mac address of the machine
mightsuffice?
I have to license each database, not just the whole machine. And the systemid is the only unique database identifier
I'vefound.
--
Cezariusz Marek
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