On Sat, Aug 11, 2012 at 01:48:13AM +0200, Dimitri Fontaine wrote: > > >> Another thing worth considering is to have pg_upgrade init, stop and > >> start clusters as necessary instead of requesting the user to do it. > >> I think this is two less steps. > > > > Then you'd need to expose the entire pg_ctl shutdown mode logic through > > pg_upgrade, which might not make things simpler. > > What about having single user mode talk fe/be protocol, and talk to it via a > UNIX pipe, with pg_upgrade starting the single user backend as a subprocess?
You still need to run libpq applications, so would be doing some process juggling to get the libpq clients to talk to a pipe. -- Bruce Momjian <br...@momjian.us> http://momjian.us EnterpriseDB http://enterprisedb.com + It's impossible for everything to be true. + - Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
