On Tue, Sep 5, 2017 at 12:16 PM, Tom Lane <t...@sss.pgh.pa.us> wrote: > Hm. I think it would be a fine idea to push this change into v10, > so that all psql versions that have \if would have these variables. > However, I'm less enthused about adding them to the 9.x branches. > Given the lack of \if, I'm not seeing a use-case that would justify > taking any compatibility risk for. > > Opinions anyone?
As I see it, the risks of back-patching are: 1. Different minor versions will have different behavior, and that tends to create more problems than it solves. 2. There's a small probability that somebody's script could be relying on these variables to be initially unset. I think back-patching these changes into stable branches is a slippery slope that we'd be best advised not to go down. I don't feel as strongly about v10. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-hackers mailing list (email@example.com) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers