On Wed, Feb 20, 2019 at 10:15 AM Peter Eisentraut <peter.eisentr...@2ndquadrant.com> wrote: > Nowadays there are a number of methods for composing multiple > postgresql.conf files for modularity. But if you have a bunch of things > you want to load via shared_preload_libraries, you have to put them all > in one setting. How about some kind of syntax for appending something > to a list, like > > shared_preload_libraries += 'pg_stat_statements' > > Thoughts?
I like the idea of solving this problem but I'm not sure it's a good idea to add this sort of syntax to postgresql.conf. I think it would be more useful to provide a way to tell ALTER SYSTEM that you want to append rather than replace, as I see Euler also proposes. Another off-ball idea is to maybe allow something like shared_preload_statements.pg_stat_statments = 1. The server would load all libraries X for which shared_preload_statements.X is set to a value that is one of the ways we spell a true value for a Boolean GUC. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company