On Thu, 2025-07-17 at 11:59 -0700, Jeff Davis wrote: > On Thu, 2025-07-17 at 08:30 +0200, Laurenz Albe wrote: > > I wasn't aware how Oracle handles case mapping, but it seems you > > are right: > > How does it handle UPPER('ß')? If the result is 'ß', that means it's > similar to the builtin C.UTF-8. If the result is 'SS', that means it's > similar to PG_UNICODE_FAST.
It returns 'ß'. > > I'm still a little bit worried that changes in the case mapping might > > break some indexes. We have a track record with going against the > > standard when it comes to case conversion, so perhaps we wouldn't > > spill too much milk if we only convert ASCII correctly. > > > > But perhaps I am just being paranoid. > > That's a reasonable concern, and I don't mean to dismiss it. But I > believe that problem is two orders of magnitude smaller than the > problems we have with the status quo. I agree with that. Yours, Laurenz Albe