On 11.01.25 18:27, PG Bug reporting form wrote:
> When using the 'rules' option of CREATE COLLATION to create a custom icu
> collation it seems that, if you include inside the rules a change to the
> comparison strength, it is ignored.
I think this is the same as this ICU bug:
https://unicode-org.atlassian.net/browse/ICU-22456