Re: Pre-proposal: unicode normalized text

On 11.10.23 03:08, Jeff Davis wrote:
>    * unicode_is_valid(text): returns true if all codepoints are
> assigned, false otherwise

We need to be careful about precise terminology.  "Valid" has a defined 
meaning for Unicode.  A byte sequence can be valid or not as UTF-8.  But 
a string containing unassigned code points is not not-"valid" as Unicode.

>    * unicode_version(): version of unicode Postgres is built with
>    * icu_unicode_version(): version of Unicode ICU is built with

This seems easy enough, but it's not clear what users would actually do 
with that.