Greg Stark <st...@mit.edu> writes: > Hm. Actually the pg_collation catalog might give a handy way out for the > issue of being inconsistent with the system collation. We could support > both sets of collations and let the user select an ICU collation or system > collation at runtime.
+1 ... this seems like a nice end-run around the backwards compatibility problem. Another issue is that (AFAIK) ICU doesn't support any non-Unicode encodings, which means that a build supporting *only* ICU collations is a nonstarter IMO. So we really need a way to deal with both system and ICU collations, and treating the latter as a separate subset of pg_collation seems like a decent way to do that. (ISTR some discussion about forcibly converting strings in other encodings to Unicode to compare them, but I sure don't want to do that. I think it'd be saner just to mark the ICU collations as only compatible with UTF8 database encoding.) regards, tom lane PS: I've removed pgsql-packagers from the cc, this thread is no longer relevant to them. -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers