I wrote:
> On further reflection, I'm wondering exactly how much goodness to chop
> off there. What I'd originally been thinking was to just lobotomize the
> case-folding step, and allow citext's comparison operators to still
> respond to input collation when comparing the folded strings. However,
> I can imagine that some combinations of languages might produce pretty
> weird results if we do that. Should we lobotomize the comparisons too?
> Or is the ability to affect the sort order valuable enough to put up
> with whatever corner-case funnies there might be?
For lack of any comment on this point, I went with the first approach.
Patch is committed.
regards, tom lane