"Jim C. Nasby" <jnasby(at)pervasive(dot)com> writes:
> Was the code ever changed so that it won't update relpages if the number
> is the same?
Long ago. I just tested it again, and AFAICS you can create indexes
concurrently so long as the underlying table isn't changing (ie,
neither reltuples nor relpages changes).
regards, tom lane