Rod Taylor <rod(dot)taylor(at)gmail(dot)com> writes:
> It is interesting that "citext" seems to be functional with exactly
> the same statements.
Huh, it looks to me like that's an error in the declaration of the
citext versions of regexp_matches --- they should be declared to return
setof text[], the same as the underlying text functions. David, do you
agree?
regards, tom lane