On 5/5/16 9:21 PM, Steve Crawford wrote:
Adding an escape sequence that references cluster_name would enable prompts to identify the cluster in a manner that is both consistent and distinct regardless of access path.
I think that would be a good idea. You could probably design it so that any server parameter reported to the client can be put in a psql prompt.
Potential issues/improvements: What should the escape-sequence display if cluster_name is not set or the cluster is a pre-9.5 version. %M? %m? In future server versions should there be a default for cluster_name if it is not set? If so, what should it be? Would the server canonical hostname + listen-port be reasonable?
Those are good questions. I don't really like the proposed answers, because that could cause confusion in practical use.
-- Peter Eisentraut http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
