On Tue, 2024-11-19 at 13:42 -0800, Jeff Davis wrote: > On Tue, 2024-11-12 at 10:40 +0100, Laurenz Albe wrote: > > I want to reiterate what I said in the above thread: > > If that means that indexes on strings using the "builtin" collation > > provider need to be reindexed after an upgrade, I am very much > > against it. > > How would you feel if there was a better way to "lock down" the > behavior using an extension?
Better. > I have a patchset here: > > https://www.postgresql.org/message-id/78a1b434ff40510dc5aaabe986299a09f4da90cf.camel%40j-davis.com > > that changes the implementation of collation and ctype to use method > tables rather than branching, and it also introduces some hooks that > can be used to replace the method tables with whatever you want. That looks like a nice idea, since it obviates the need to build PostgreSQL yourself if you want to use a non-standard copy of - say - the ICU library. You still have to build your own ICU library, though. I had hoped that the builtin provider would remove the need to REINDEX, but I have given up that hope. Peter's argument is sound from a conceptual point of view, even though I doubt that the average user will be able to appreciate it. Yours, Laurenz Albe