Josh Berkus <josh@agliodbs.com> writes:
> I'd like to patch the citext contrib module for 9.2 to fix this by
> creating four new = operators to establish the comparison function for
> text and varchar.
I think you'll find that's easier said than done (problem 1 is going to
be ambiguity, and problem 2 is going to be that comparisons involving
these operators won't get indexed).
regards, tom lane