On 10.10.23 16:02, Robert Haas wrote:
On Tue, Oct 10, 2023 at 2:44 AM Peter Eisentraut <pe...@eisentraut.org> wrote:
Can you restate what this is supposed to be for? This thread appears to
have morphed from "let's normalize everything" to "let's check for
unassigned code points", but I'm not sure what we are aiming for now.
Jeff can say what he wants it for, but one obvious application would
be to have the ability to add a CHECK constraint that forbids
inserting unassigned code points into your database, which would be
useful if you're worried about forward-compatibility with collation
definitions that might be extended to cover those code points in the
future.
I don't see how this would really work in practice. Whether your data
has unassigned code points or not, when the collations are updated to
the next Unicode version, the collations will have a new version number,
and so you need to run the refresh procedure in any case.
