On Mon, 2023-02-20 at 15:55 +0100, Peter Eisentraut wrote:
> I'm confused. We are not going to try to change existing databases
> to a
> different collation provider during pg_upgrade, are we?
No, certainly not.
I interpreted Pavel's comments as a comparison of ICU and libc in
general and not specific to this patch. Changing providers obviously
requires an index rebuild to be safe.
--
Jeff Davis
PostgreSQL Contributor Team - AWS