The following documentation comment has been logged on the website:
Page: https://www.postgresql.org/docs/15/collation.html
Description:
This page states:
Observe how in the traditional ICU locale naming system, the root locale
is selected by an empty string.
CREATE COLLATION latinlast (provider = icu, locale =
'en-u-kr-grek-latn');
CREATE COLLATION latinlast (provider = icu, locale =
'en@colReorder=grek-latn');
Neither of the locales are empty strings.
