On 14.03.22 19:57, Robert Haas wrote:
1. What will happen if I set the ICU collation to something that doesn't match the libc collation? How bad are the consequences?
These are unrelated, so there are no consequences.
2. If I want to avoid a mismatch between the two, then I will need a way to figure out which libc collation corresponds to a given ICU collation. How do I do that?
You can specify the same name for both.